Merge branch 'develop' into cpwu/TD-11561

cmake/version.inc

@@ -4,7 +4,7 @@ PROJECT(TDengine)
 IF (DEFINED VERNUMBER)
   SET(TD_VER_NUMBER ${VERNUMBER})
 ELSE ()
-  SET(TD_VER_NUMBER "2.3.2.0")
+  SET(TD_VER_NUMBER "2.4.0.0")
 ENDIF ()
 
 IF (DEFINED VERCOMPATIBLE)

snap/snapcraft.yaml

 name: tdengine
 base: core20
-version: '2.3.2.0'
+version: '2.4.0.0'
 icon: snap/gui/t-dengine.svg
 summary: an open-source big data platform designed and optimized for IoT. 
 description: |

src/client/src/tscSQLParser.c

@@ -6090,7 +6090,7 @@ int32_t getTimeRange(STimeWindow* win, tSqlExpr* pRight, int32_t optr, int16_t t
 
 // todo error !!!!
 int32_t tsRewriteFieldNameIfNecessary(SSqlCmd* pCmd, SQueryInfo* pQueryInfo) {
-  const char rep[] = {'(', ')', '*', ',', '.', '/', '\\', '+', '-', '%', ' '};
+  const char rep[] = {'(', ')', '*', ',', '.', '/', '\\', '+', '-', '%', ' ', '`'};
 
   for (int32_t i = 0; i < pQueryInfo->fieldsInfo.numOfOutput; ++i) {
     char* fieldName = tscFieldInfoGetField(&pQueryInfo->fieldsInfo, i)->name;

src/connector/node-red-contrib-tdengine/.gitignore

+node_modules
\ No newline at end of file

src/connector/node-red-contrib-tdengine/README.md

+This repositry create a custom Node-Red node for configing TDEngine server connection and execute SQL from preview node msg.payload
+## Design
+Use Taos data restful API to commit SQL, API call like
+```
+curl -H 'Authorization: Basic <TOKEN>' -d '<SQL>' <ip>:<PORT>/rest/sql/[db_name]
+```
+
+Input options:
+* DB Server: Setup server connection or select a exist server
+* DB Name: Database to execute SQL
+
+Use [axios](https://axios-http.com/) to call http request
+
+## Usage
+
+1. Start Node-Red
+2. Install TDEngine node
+3. Add "taos query" node to workspace from palette 
+4. Setup a TDEngine server and database name
+5. Add function or other node to create SQL, put SQL into msg.payload
+6. Link to "taos query" node
+
+### Demo
+1. Start Node-Red by docker
+```
+docker run -it -p 1880:1880 -v node_red_data:/data --name mynodered nodered/node-red
+```
+2. Import sample flow "demo/flow.json"
+![import-flow](demo/ImportFlow.png)
+3. Install TDEngine node by name "node-red-contrib-tdengine", current version is 0.0.2
+![alt](demo/InstallTDEngineNode.png)
+4. Modify your TDEngine server config
+![alt](demo/ModifyServerConfig.png)
+5. Edit test SQL
+![alt](demo/EditTestSQL.png)
+6. Start flow by click Inject node

src/connector/node-red-contrib-tdengine/demo/flow.json

+[
+    {
+        "id": "01ad89bea2c249f6",
+        "type": "tab",
+        "label": "流程 1",
+        "disabled": false,
+        "info": "",
+        "env": [
+            {
+                "name": "test",
+                "value": "abc",
+                "type": "str"
+            },
+            {
+                "name": "path",
+                "value": "{\"codes\":\"/usr/local/processing/codes\",\"parameters\":\"/usr/local/processing/parameters\"}",
+                "type": "json"
+            }
+        ]
+    },
+    {
+        "id": "0ab8aa0c7f1b7522",
+        "type": "taos-query",
+        "z": "01ad89bea2c249f6",
+        "server": "e385222cd91994dc",
+        "database": "demo",
+        "x": 780,
+        "y": 400,
+        "wires": [
+            [
+                "f9c4f70dc2d79548"
+            ]
+        ]
+    },
+    {
+        "id": "ba09b80a40b65780",
+        "type": "inject",
+        "z": "01ad89bea2c249f6",
+        "name": "",
+        "props": [
+            {
+                "p": "payload"
+            }
+        ],
+        "repeat": "",
+        "crontab": "",
+        "once": false,
+        "onceDelay": 0.1,
+        "topic": "",
+        "payload": "INSERT INTO t VALUES (NOW, 23)",
+        "payloadType": "str",
+        "x": 490,
+        "y": 400,
+        "wires": [
+            [
+                "0ab8aa0c7f1b7522"
+            ]
+        ]
+    },
+    {
+        "id": "f9c4f70dc2d79548",
+        "type": "debug",
+        "z": "01ad89bea2c249f6",
+        "name": "",
+        "active": true,
+        "tosidebar": true,
+        "console": false,
+        "tostatus": false,
+        "complete": "payload",
+        "targetType": "msg",
+        "statusVal": "",
+        "statusType": "auto",
+        "x": 1050,
+        "y": 400,
+        "wires": []
+    },
+    {
+        "id": "e385222cd91994dc",
+        "type": "taos-config",
+        "host": "localhost",
+        "port": "6030",
+        "username": "root",
+        "password": "taosdata"
+    }
+]
\ No newline at end of file

src/connector/node-red-contrib-tdengine/package-lock.json

+{
+    "name": "node-red-contrib-tdengine",
+    "version": "0.0.2",
+    "lockfileVersion": 1,
+    "requires": true,
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+            "integrity": "sha512-XdKkCK0Zqc6w3iTxLckiuJ81tiD/o5rBE/m+nXpRCB+/Sq4DqkfXZ/x0jW02DG1tGsfUGXbTJyZDP+eu67haSw=="
+        },
+        "wrap-ansi": {
+            "version": "7.0.0",
+            "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
+            "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
+            "requires": {
+                "ansi-styles": "^4.0.0",
+                "string-width": "^4.1.0",
+                "strip-ansi": "^6.0.0"
+            },
+            "dependencies": {
+                "ansi-styles": {
+                    "version": "4.3.0",
+                    "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+                    "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+                    "requires": {
+                        "color-convert": "^2.0.1"
+                    }
+                },
+                "color-convert": {
+                    "version": "2.0.1",
+                    "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+                    "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+                    "requires": {
+                        "color-name": "~1.1.4"
+                    }
+                },
+                "color-name": {
+                    "version": "1.1.4",
+                    "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+                    "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="
+                }
+            }
+        },
+        "wrappy": {
+            "version": "1.0.2",
+            "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+            "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+        },
+        "ws": {
+            "version": "7.5.1",
+            "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.1.tgz",
+            "integrity": "sha512-2c6faOUH/nhoQN6abwMloF7Iyl0ZS2E9HGtsiLrWn0zOOMWlhtDmdf/uihDt6jnuCxgtwGBNy6Onsoy2s2O2Ow==",
+            "dev": true
+        },
+        "xml2js": {
+            "version": "0.4.23",
+            "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.23.tgz",
+            "integrity": "sha512-ySPiMjM0+pLDftHgXY4By0uswI3SPKLDw/i3UXbnO8M/p28zqexCUoPmQFrYD+/1BzhGJSs2i1ERWKJAtiLrug==",
+            "dev": true,
+            "requires": {
+                "sax": ">=0.6.0",
+                "xmlbuilder": "~11.0.0"
+            }
+        },
+        "xmlbuilder": {
+            "version": "11.0.1",
+            "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-11.0.1.tgz",
+            "integrity": "sha512-fDlsI/kFEx7gLvbecc0/ohLG50fugQp8ryHzMTuW9vSa1GJ0XYWKnhsUx7oie3G98+r56aTQIUB4kht42R3JvA==",
+            "dev": true
+        },
+        "xtend": {
+            "version": "4.0.2",
+            "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+            "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+            "dev": true
+        },
+        "y18n": {
+            "version": "5.0.8",
+            "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
+            "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA=="
+        },
+        "yallist": {
+            "version": "4.0.0",
+            "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+            "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
+            "dev": true
+        },
+        "yargs": {
+            "version": "16.2.0",
+            "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
+            "integrity": "sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==",
+            "requires": {
+                "cliui": "^7.0.2",
+                "escalade": "^3.1.1",
+                "get-caller-file": "^2.0.5",
+                "require-directory": "^2.1.1",
+                "string-width": "^4.2.0",
+                "y18n": "^5.0.5",
+                "yargs-parser": "^20.2.2"
+            }
+        },
+        "yargs-parser": {
+            "version": "20.2.4",
+            "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.4.tgz",
+            "integrity": "sha512-WOkpgNhPTlE73h4VFAFsOnomJVaovO8VqLDzy5saChRBFQFBoMYirowyW+Q9HB4HFF4Z7VZTiG3iSzJJA29yRA=="
+        },
+        "yargs-unparser": {
+            "version": "2.0.0",
+            "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-2.0.0.tgz",
+            "integrity": "sha512-7pRTIA9Qc1caZ0bZ6RYRGbHJthJWuakf+WmHK0rVeLkNrrGhfoabBNdue6kdINI6r4if7ocq9aD/n7xwKOdzOA==",
+            "requires": {
+                "camelcase": "^6.0.0",
+                "decamelize": "^4.0.0",
+                "flat": "^5.0.2",
+                "is-plain-obj": "^2.1.0"
+            }
+        },
+        "yocto-queue": {
+            "version": "0.1.0",
+            "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
+            "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q=="
+        }
+    }
+}

src/connector/node-red-contrib-tdengine/package.json

+{
+    "name": "node-red-contrib-tdengine",
+    "version": "0.0.2",
+    "description": "",
+    "main": "tdengine.js",
+    "repository": {
+        "type": "git",
+        "url": "git+https://github.com/kevinpan45/node-red-contrib-tdengine.git"
+    },
+    "author": "kevinpan45@163.com",
+    "license": "ISC",
+    "dependencies": {
+        "axios": "^0.24.0",
+        "mocha": "^9.1.3"
+    },
+    "node-red": {
+        "nodes": {
+            "tdengine": "tdengine.js"
+        }
+    },
+    "keywords": [
+        "node-red",
+        "tdengine"
+    ],
+    "devDependencies": {
+        "node-red": "^2.1.4",
+        "node-red-node-test-helper": "^0.2.7"
+    }
+}

src/connector/node-red-contrib-tdengine/tdengine.html

+<script type="text/javascript">
+    "use strict";
+    /*global RED*/
+    RED.nodes.registerType('taos-config', {
+        category: 'config',
+        defaults: {
+            host: {
+                value: "localhost",
+                required: true
+            },
+            port: {
+                value: "6030",
+                required: true
+            },
+            username: {
+                value: "",
+                required: false
+            },
+            password: {
+                value: "",
+                required: false
+            }
+        },
+        label: function () {
+            return this.host || "TDEngine host";
+        }
+    });
+</script>
+
+<script type="text/x-red" data-template-name="taos-config">
+    <div class="form-row">
+        <label for="node-config-input-host"><i class="fa fa-server"></i> Host</label>
+        <input type="text" id="node-config-input-host">
+    </div>
+    <div class="form-row">
+        <label for="node-config-input-port"><i class="fa fa-server"></i> Port</label>
+        <input type="text" id="node-config-input-port">
+    </div>
+    <div class="form-row">
+        <label for="node-config-input-username"><i class="fa fa-server"></i> User Name</label>
+        <input type="text" id="node-config-input-username">
+    </div>
+    <div class="form-row">
+        <label for="node-config-input-password"><i class="fa fa-server"></i> Password</label>
+        <input type="text" id="node-config-input-password">
+    </div>
+</script>
+
+<script type="text/javascript">
+    /*global RED*/
+    RED.nodes.registerType('taos-query', {
+        category: 'TDEngine',
+        inputs: 1,
+        outputs: 1,
+        color: "#ffffff",
+        paletteLabel: "taos query",
+        defaults: {
+            server: {
+                value: "",
+                type: "taos-config"
+            },
+            database: {
+                value: ""
+            },
+            sql: {
+                value: ""
+            }
+        },
+        label: function () {
+            return this.name || "taos " + this.database;
+        }
+    });
+</script>
+
+<script type="text/x-red" data-template-name="taos-query">
+    <div class="form-row">
+        <label for="node-input-server"><i class="fa fa-globe"></i> Server</label>
+        <input type="text" id="node-input-server" placeholder="Server">
+    </div>
+    <div class="form-row">
+        <label for="node-input-database"><i class="fa fa-tag"></i> Database</label>
+        <input type="text" id="node-input-database" placeholder="Database">
+    </div>
+</script>
+
+<script type="text/x-red" data-help-name="taos-query">
+    <p>TDEngine Query</p>
+    <p>Execute SQL on remote TDEngine server by restful API</p>
+</script>
\ No newline at end of file

src/connector/node-red-contrib-tdengine/tdengine.js

+module.exports = function (RED) {
+  "use strict";
+  const axios = require('axios');
+
+  function TaosConfig(n) {
+    RED.nodes.createNode(this, n);
+    this.host = n.host;
+    this.port = n.port;
+    this.username = n.username;
+    this.password = n.password;
+  }
+  RED.nodes.registerType("taos-config", TaosConfig);
+
+  function TaosQuery(n) {
+    RED.nodes.createNode(this, n);
+    this.server = RED.nodes.getNode(n.server);
+    this.database = n.database;
+    var node = this;
+
+    node.on("close", function (done) {
+      node.status({});
+      client = null;
+      done();
+    });
+
+    node.on("input", async function (msg, send, done) {
+      send = send || function () { node.send.apply(node, arguments) }
+      done = done || function (err) { if (err) node.error(err, msg); }
+
+      let sql = msg.payload;
+
+      if (!msg.payload || msg.payload == "") {
+        throw new Error("Execute SQL must be set.");
+      }
+
+      try {
+        msg.payload = await query(this.server, sql);
+        send(msg);
+        done();
+      } catch (error) {
+        done(error);
+      }
+
+    });
+  }
+  RED.nodes.registerType("taos-query", TaosQuery);
+
+  function query(server, sql) {
+    console.log("Start to execute SQL : " + sql);
+    let url = generateUrl(server);
+    return axios.post(url, sql, {
+      headers: { 'Authorization': token(server) }
+    }).then(function (response) {
+      console.log('Get http response from taos : ' + response.data.data);
+      return response.data.data;
+    }).catch(function (error) {
+      console.error("Request Failed " + e);
+      throw new Error(response.desc);
+    });
+  }
+
+
+
+  function generateUrl(server) {
+    return "http://" + server.host + ":" + server.port + '/rest/sql';
+  }
+
+  function token(server) {
+    return 'Basic ' + Buffer.from(server.username + ":" + server.password).toString('base64')
+  }
+};

src/kit/shell/src/shellEngine.c

@@ -448,9 +448,29 @@ static char* formatTimestamp(char* buf, int64_t val, int precision) {
     tt = 0;
   }
   */
-
 #ifdef WINDOWS
-  if (tt < 0) tt = 0;
+  if (tt < 0) {
+    SYSTEMTIME a={1970,1,5,1,0,0,0,0}; // SYSTEMTIME struct support 1601-01-01. set 1970 to compatible with Epoch time.
+    FILETIME b; // unit is 100ns
+    ULARGE_INTEGER c;
+    SystemTimeToFileTime(&a,&b);
+    c.LowPart = b.dwLowDateTime;  
+    c.HighPart = b.dwHighDateTime;  
+    c.QuadPart+=tt*10000000;
+    b.dwLowDateTime=c.LowPart;  
+    b.dwHighDateTime=c.HighPart;  
+    FileTimeToLocalFileTime(&b,&b);
+    FileTimeToSystemTime(&b,&a);
+    int pos = sprintf(buf,"%02d-%02d-%02d %02d:%02d:%02d", a.wYear, a.wMonth,a.wDay, a.wHour, a.wMinute, a.wSecond);   
+    if (precision == TSDB_TIME_PRECISION_NANO) {
+      sprintf(buf + pos, ".%09d", ms);
+    } else if (precision == TSDB_TIME_PRECISION_MICRO) {
+      sprintf(buf + pos, ".%06d", ms);
+    } else {
+      sprintf(buf + pos, ".%03d", ms);
+    }
+    return buf;
+  }
 #endif
   if (tt <= 0 && ms < 0) {
     tt--;

src/util/src/tlosertree.c

@@ -96,6 +96,11 @@ void tLoserTreeAdjust(SLoserTreeInfo* pTree, int32_t idx) {
       return;
     }
 
+    /* there is a risk
+     * there should be  pTree->comparFn(&pCur->index, &kLeaf.index, pTree->param)
+     * but the first element in SLoserTreeNode is int32_t
+     * and the comparFn get data as *(int32_t*)(void *), so it is just ok.
+    */
     int32_t ret = pTree->comparFn(pCur, &kLeaf, pTree->param);
     if (ret < 0) {
       SLoserTreeNode t = pTree->pNode[parentId];

tests/develop-test/0-others/TD-12435.py

+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, db_test.stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+import json
+
+
+class TDTestCase:
+    def caseDescription(self):
+        '''
+        case1: [TD-12435] fix ` identifier in table column name if using create table as subquery
+        '''
+        return
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+
+        print("============== STEP 1 ===== prepare data & validate json string")
+        tdSql.execute("create table if not exists st(ts timestamp, dataInt int)")
+        tdSql.execute("create table st_from_sub as select avg(`dataInt`) from st interval(1m)")
+        tdSql.query("describe st_from_sub")
+        tdSql.checkData(1, 0, 'avg__dataInt__')
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+

tests/develop-test/3-connectors/go/test.sh

@@ -18,3 +18,6 @@ sleep 10
 cd ../../
 WKC=`pwd`
 
+git clone git@github.com:taosdata/driver-go.git --branch develop --single-branch --depth 1 
+cd driver-go 
+go test -v ./...
\ No newline at end of file

tests/develop-test/fulltest-others.sh

 python3 ./test.py -f 0-others/json_tag.py
+python3 ./test.py -f 0-others/TD-12435.py
\ No newline at end of file

tests/examples/JDBC/taosdemo/src/main/resources/insert.json

@@ -16,7 +16,7 @@
         "cache": 16,
         "blocks": 8,
         "precision": "ms",
-        "keep": 365,
+        "keep": 36500,
         "minRows": 100,
         "maxRows": 4096,
         "comp": 2,

tests/pytest/dockerCluster/insert.json

@@ -18,7 +18,7 @@
 			"cache": 16,
 			"blocks": 8,
 			"precision": "ms",
-			"keep": 365,
+			"keep": 36500,
 			"minRows": 100,
 			"maxRows": 4096,
 			"comp":2,

tests/pytest/manualTest/TD-5114/insertDataDb3Replica2.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/query/nestedQuery/insertData.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/tsdb/insertDataDb1.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/tsdb/insertDataDb1Replica2.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/tsdb/insertDataDb2.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/tsdb/insertDataDb2Newstab.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/tsdb/insertDataDb2NewstabReplica2.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/tsdb/insertDataDb2Replica2.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/wal/insertDataDb1.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/wal/insertDataDb1Replica2.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/wal/insertDataDb2.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/wal/insertDataDb2Newstab.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/wal/insertDataDb2NewstabReplica2.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/pytest/wal/insertDataDb2Replica2.json

@@ -22,7 +22,7 @@
             "cache": 50,
             "blocks": 8,
             "precision": "ms",
-            "keep": 365,
+            "keep": 36500,
             "minRows": 100,
             "maxRows": 4096,
             "comp":2,

tests/system-test/1-insert/Null_tag_Line_insert.py

+###################################################################
+#           Copyright (c) 2021 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys,os
+import time
+import taos
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+from util.types import TDSmlProtocolType, TDSmlTimestampType
+
+class TDTestCase():
+    updatecfgDict = {"smlTagNullName","setname"}  # add extra client params
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self._conn = conn
+
+    def caseDescription(self):
+
+        '''
+        case1 <wenzhouwww>: [TD-11436] : this is an test case for line proto no tag insert into TDengine .
+        '''
+        return
+
+    def getBuildPath(self, tool="taosd"):
+        buildPath = ""
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ((tool) in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root)-len("/build/bin")]
+                    break
+        return buildPath
+
+    def no_tag_single_line_insert(self,name):
+        self.name = name 
+
+        lines3 = [  "sti c1=4i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000",
+            "sti c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640000000"
+        ]
+ 
+        code = self._conn.schemaless_insert(lines3, TDSmlProtocolType.LINE.value, TDSmlTimestampType.NANO_SECOND.value)
+        print("schemaless_insert result {}".format(code))
+        
+        tdSql.query('select * from sti')
+        tdSql.checkRows(2)
+        
+        tdSql.query('select tbname from sti')
+        tdSql.checkRows(1)
+
+        col_names = tdSql.getResult("describe sti")
+        if col_names[-1][0]==self.name:
+            tdLog.info(" ====================get expected tag name ===============")
+        else:
+            tdLog.exit("======================error occured for null tag==================")
+    
+    def no_tag_mulit_line_insert(self,name):
+
+        lines3 = [  "sti c1=4i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000",
+            "sti c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640000000"
+        ]
+ 
+        code = self._conn.schemaless_insert(lines3, TDSmlProtocolType.LINE.value, TDSmlTimestampType.NANO_SECOND.value)
+        print("schemaless_insert result {}".format(code))
+        
+        tdSql.query('select * from sti')
+        tdSql.checkRows(2)
+        
+        tdSql.query('select tbname from sti')
+        tdSql.checkRows(1)
+
+        col_names = tdSql.getResult("describe sti")
+        if col_names[-1][0]==self.name:
+            tdLog.info(" ====================get expected tag name ===============")
+        else:
+            tdLog.exit("======================error occured for null tag==================")
+        
+
+
+    def part_tag_single_insert(self,name):
+        lines5 = [  "sti,t3=1 c1=4i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639050000",
+            "sti,t1=abc c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640050000",
+            "sti,t2=abc c1=3i64,c3=L\"passitagin\",c4=5f64,c5=5f64,c6=true 1626006833640050000"
+        ]
+        code = self._conn.schemaless_insert([ lines5[0] ], TDSmlProtocolType.LINE.value, TDSmlTimestampType.NANO_SECOND.value)
+        print("schemaless_insert result {}".format(code))
+        
+        code = self._conn.schemaless_insert([ lines5[1] ], TDSmlProtocolType.LINE.value, TDSmlTimestampType.NANO_SECOND.value)
+        print("schemaless_insert result {}".format(code))
+        
+        code = self._conn.schemaless_insert([ lines5[2] ], TDSmlProtocolType.LINE.value, TDSmlTimestampType.NANO_SECOND.value)
+        print("schemaless_insert result {}".format(code))
+        
+        tdSql.query('select * from sti')
+        tdSql.checkRows(5)
+        tdSql.checkData(4,3,None)
+        tdSql.checkData(4,6,True)
+        tdSql.checkData(2,8,"1")
+        tdSql.checkData(3,9,"abc")
+        
+        tdSql.query('select tbname from sti')
+        tdSql.checkRows(4)
+
+        col_names = tdSql.getResult("describe sti")
+        
+        if col_names[-4][0]==self.name and col_names[-3][0]=="t3" and col_names[-2][0]=="t1" and col_names[-1][0]=="t2": 
+            tdLog.info(" ====================get expected tag name ===============")
+        else:
+            tdLog.exit("======================error occured for null tag==================")
+        
+
+    def part_tag_multi_insert(self,name):
+
+        lines6 = [  "str c1=4i64,c3=L\"passit\",c2=false,c4=4f64 1626006833639000000",
+            "str,t1=abc c1=3i64,c3=L\"passitagin\",c2=true,c4=5f64,c5=5f64 1626006833640000000",
+            "str,t2=abc c1=3i64,c3=L\"passitagin\",c4=5f64,c5=5f64,c6=true 1626006833640000000"                                                                                                                                                      
+        ]
+        code = self._conn.schemaless_insert(lines6, TDSmlProtocolType.LINE.value, TDSmlTimestampType.NANO_SECOND.value)
+        print("schemaless_insert result {}".format(code))
+        
+        tdSql.query('select * from str')
+        tdSql.checkRows(3)
+        tdSql.checkData(0,3,True)
+        tdSql.checkData(1,3,None)
+        tdSql.checkData(1,6,True)
+        tdSql.checkData(0,8,"abc")
+        tdSql.checkData(1,9,"abc")
+        
+        tdSql.query('select tbname from str')
+        tdSql.checkRows(3)
+
+        col_names = tdSql.getResult("describe str")
+        
+        if col_names[-3][0]==self.name and col_names[-2][0]=="t1" and col_names[-1][0]=="t2" : 
+            tdLog.info(" ====================get expected tag name ===============")
+        else:
+            tdLog.exit("======================error occured for null tag==================")
+        
+
+    def run(self):
+        print("running {}".format(__file__))
+        tdSql.execute("drop database if exists test")
+        tdSql.execute("create database if not exists test precision 'us'")
+        tdSql.execute('use test')
+        self.no_tag_single_line_insert("_tag_null")
+        self.no_tag_mulit_line_insert("_tag_null")
+        self.part_tag_single_insert("_tag_null")
+        self.part_tag_multi_insert("_tag_null")
+
+       
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/system-test/2-query/TD-11943.py

+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+from posixpath import split
+import sys
+import os 
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1420041600000 # 2015-01-01 00:00:00  this is begin time for first record
+        self.num = 10
+
+    def caseDescription(self):
+
+        '''
+        case1 <authors>: wenzhouwww[TD-11943] : 
+            this test case is an test case for unexpected coredump about taosd ;
+            root cause : the pExpr2 of sql select tbname, max(col)+5 from child_table has two functions, col_proj and scalar_expr.
+            for function col_proj (tbname column), it is a tag during master scan stage, the input data is not set. 
+
+        ''' 
+        return 
+
+   
+    def run(self):
+        tdSql.prepare()
+        tdSql.execute("create database if not exists testdb keep 36500;")
+        tdSql.execute("use testdb;")
+        tdSql.execute("create stable st (ts timestamp , id int , value double) tags(hostname binary(10) ,ind int);")
+        for i in range(self.num):
+            tdSql.execute("insert into sub_%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+10000*i,i*2,i+10.00))
+
+        tdSql.query("select tbname ,max(value) from st;")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,1,19)
+        tdSql.query("select tbname ,max(value)+5 from st;")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,1,24)
+        tdSql.query("select tbname ,max(value) from sub_1;")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,1,11)
+        tdSql.query("select tbname ,max(value)+5 from sub_1;")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,1,16)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+
+

tests/system-test/2-query/TD-11969.py

+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+from posixpath import split
+import sys
+import os 
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1420041600000 # 2015-01-01 00:00:00  this is begin time for first record
+        self.num = 10
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root) - len("/build/bin")]
+                    break
+        return buildPath
+
+
+    def caseDescription(self):
+
+        '''
+        case1 <wenzhouwww>: [TD-11969] : 
+            this test case is an test case for unexpected coredump for taoshell ;
+            root cause : make TBNAME projection query so that error is raised when update functions for column projection.
+
+        ''' 
+        return 
+
+   
+    def run(self):
+        tdSql.prepare()
+        tdSql.execute("create database if not exists testdb keep 36500;")
+        tdSql.execute("use testdb;")
+        tdSql.execute("create stable st (ts timestamp , id int , value double) tags(hostname binary(10) ,ind int);")
+        for i in range(self.num):
+            tdSql.execute("insert into sub_%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+10000*i,i*2,i+10.00))
+        tdSql.error("select max(ts_inter) ,tbname from (select elapsed(ts) ts_inter ,tbname from st interval (1s) group by tbname) order by ts;")
+        tdSql.error("select max(ts_inter) ,tbname from (select elapsed(ts) ts_inter from st interval (1s) group by tbname) ;")
+        tdSql.error("select max(ts_inter) ,tbname from (select * from st interval (1s) group by tbname) ;")
+        tdSql.error("select max(ts_inter) ,tbname from (select elapsed(ts) ts_inter ,tbname from sub_1 interval (1s)) order by ts;")
+        tdSql.query("select ts , tbname ,max(value) from st group by tbname order by ts;")
+        tdSql.checkRows(10)
+
+    
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+
+

tests/system-test/2-query/TD-11978.py

+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+from posixpath import split
+import sys
+import os 
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1420041600000 # 2015-01-01 00:00:00  this is begin time for first record
+        self.num = 10
+
+    def caseDescription(self):
+
+        '''
+        case1 <authors>: wenzhouwww[TD-11978] : 
+            this test case is an test case for unexpected coredump about taoshell  ;
+            root cause : The function does not determine whether the input is empty
+        ''' 
+        return 
+
+   
+    def run(self):
+        tdSql.prepare()
+        tdSql.execute("create database if not exists testdb keep 36500;")
+        tdSql.execute("use testdb;")
+        tdSql.execute("create stable st (ts timestamp , id int , value double) tags(hostname binary(10) ,ind int);")
+        for i in range(self.num):
+            tdSql.execute("insert into sub_%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+10000*i,i*2,i+10.00))
+
+        tdSql.error("select elapsed(,) from sub_1;")
+        tdSql.error("select elapsed(,,) from sub_1;")
+        tdSql.error("select elapsed(,,1s) from sub_1;")
+
+        tdSql.error("select elapsed(,) from st group by tbname ;")
+        tdSql.error("select elapsed(,,) from st group by tbname;")
+        tdSql.error("select elapsed(,,1s) from st group by tbname;")
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+
+

tests/system-test/2-query/TD-12014.py

+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+from posixpath import split
+import sys
+import os 
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1420041600000 # 2015-01-01 00:00:00  this is begin time for first record
+        self.num = 10
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root) - len("/build/bin")]
+                    break
+        return buildPath
+
+
+    def caseDescription(self):
+
+        '''
+        case1 <wenzhouwww>:[TD-12014] : 
+            this test case is an test case for taoshell crash ， it will coredump when query such as "select 1*now from st "
+
+        ''' 
+        return 
+   
+    def run(self):
+        tdSql.prepare()
+        tdSql.execute("create database if not exists testdb keep 36500;")
+        tdSql.execute("use testdb;")
+        tdSql.execute("create stable st (ts timestamp , id int , value double) tags(hostname binary(10) ,ind int);")
+        for i in range(self.num):
+            tdSql.execute("insert into sub_%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+10000*i,i*2,i+10.00))
+
+        tdSql.error('select 1*now+2d-3m from st;') 
+        tdSql.error('select 1*now+2d-3m from sub_1;') 
+        tdSql.error('select 1-now+2d-3m from st;') 
+        tdSql.error('select 1*now+2d-3m from st;') 
+        tdSql.error('select 1/now+2d-3m from st;') 
+        tdSql.error('select 1%now+2d-3m from st;') 
+        tdSql.error('select 1*now+2d-3m from sub_1;') 
+        tdSql.error('select elapsed(ts)+now from st  group by tbname order by ts desc ;') 
+        tdSql.error('select elapsed(ts)-now from st  group by tbname order by ts desc ;')
+        tdSql.error('select elapsed(ts)*now from st  group by tbname order by ts desc ;')
+        tdSql.error('select elapsed(ts)/now from st  group by tbname order by ts desc ;')
+        tdSql.error('select elapsed(ts)%now from st  group by tbname order by ts desc ;')
+        tdSql.error('select elapsed(ts)+now from sub_1 order by ts desc ;') 
+        tdSql.error('select twa(value)+now from st order by ts desc ;') 
+        tdSql.error('select max(value)*now from st ;') 
+        tdSql.error('select max(value)*now from sub_1 ;') 
+        tdSql.error('select max(value)*now+2d-3m from st;')
+
+        tdSql.query('select max(value) from st where ts < now -2d +3m ;') 
+        tdSql.checkRows(1)
+        tdSql.query('select ts,value from st where ts < now -2d +3m ;') 
+        tdSql.checkRows(10)
+        tdSql.query('select max(value) from sub_1 where ts < now -2d +3m ;') 
+        tdSql.checkRows(1)
+        tdSql.query('select ts ,value from sub_1 where ts < now -2d +3m ;') 
+        tdSql.checkRows(1)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+
+

tests/system-test/2-query/TD-12228.py

+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import random
+import string
+import os
+import sys
+import time
+import taos
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+from util.dnodes import tdDnodes
+from util.dnodes import *
+import itertools
+from itertools import product
+from itertools import combinations
+from faker import Faker
+import subprocess
+
+class TDTestCase:
+    def caseDescription(self):
+        '''
+        case1 <wenzhouwww>: [TD-12228] : 
+        this test case is an test case for cache error , it will coredump taoshell .
+	
+        ''' 
+        return
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+        os.system("rm -rf 2-query/TD-12228.py.sql")
+    
+    def restartDnodes(self):
+        tdDnodes.stop(1)
+        tdDnodes.start(1)
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root) - len("/build/bin")]
+                    break
+        return buildPath
+
+    def dropandcreateDB_random(self,n):
+        self.ts = 1630000000000
+        self.num_random = 1000
+        fake = Faker('zh_CN')
+        for i in range(n):
+            tdSql.execute('''drop database if exists db ;''')
+            tdSql.execute('''create database db keep 36500;''')
+            tdSql.execute('''use db;''')
+
+            tdSql.execute('''create stable stable_1 (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(100) , q_nchar nchar(100) , q_ts timestamp , \
+                    q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) \
+                    tags(loc nchar(100) , t_int int , t_bigint bigint , t_smallint smallint , t_tinyint tinyint, t_bool bool , t_binary binary(100) , t_nchar nchar(100) ,t_float float , t_double double , t_ts timestamp);''')
+            tdSql.execute('''create stable stable_2 (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(100) , q_nchar nchar(100) , q_ts timestamp , \
+                    q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) \
+                    tags(loc nchar(100) , t_int int , t_bigint bigint , t_smallint smallint , t_tinyint tinyint, t_bool bool , t_binary binary(100) , t_nchar nchar(100) ,t_float float , t_double double , t_ts timestamp);''')
+            
+            tdSql.execute('''create table table_1 using stable_1 tags('table_1', '0' , '0' , '0' , '0' , 0 , '0' , '0' , '0' , '0' ,'0')''')
+            tdSql.execute('''create table table_2 using stable_1 tags('table_2', '2147483647' , '9223372036854775807' , '32767' , '127' , 1 , 'binary2' , 'nchar2' , '2' , '22' , \'1999-09-09 09:09:09.090\')''')
+            tdSql.execute('''create table table_3 using stable_1 tags('table_3', '-2147483647' , '-9223372036854775807' , '-32767' , '-127' , false , 'binary3' , 'nchar3nchar3' , '-3.3' , '-33.33' , \'2099-09-09 09:09:09.090\')''')
+            tdSql.execute('''create table table_21 using stable_2 tags('table_21' , '0' , '0' , '0' , '0' , 0 , '0' , '0' , '0' , '0' ,'0')''')
+
+            #regular table
+            tdSql.execute('''create table regular_table_1 \
+                        (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(100) , q_nchar nchar(100) , q_ts timestamp , \
+                        q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) ;''')
+            tdSql.execute('''create table regular_table_2 \
+                        (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(100) , q_nchar nchar(100) , q_ts timestamp , \
+                        q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) ;''')
+            tdSql.execute('''create table regular_table_3 \
+                        (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(100) , q_nchar nchar(100) , q_ts timestamp , \
+                        q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) ;''')
+
+
+            for i in range(self.num_random):        
+                tdSql.execute('''insert into table_1  (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double , q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*1000, fake.random_int(min=-2147483647, max=2147483647, step=1), 
+                            fake.random_int(min=-9223372036854775807, max=9223372036854775807, step=1), 
+                            fake.random_int(min=-32767, max=32767, step=1) , fake.random_int(min=-127, max=127, step=1) , 
+                            fake.pyfloat() , fake.pyfloat() , fake.pystr() , fake.address() , self.ts + i))
+                tdSql.execute('''insert into  regular_table_1 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*1000, fake.random_int(min=-2147483647, max=2147483647, step=1) , 
+                            fake.random_int(min=-9223372036854775807, max=9223372036854775807, step=1) , 
+                            fake.random_int(min=-32767, max=32767, step=1) , fake.random_int(min=-127, max=127, step=1) , 
+                            fake.pyfloat() , fake.pyfloat() , fake.pystr() , fake.address() , self.ts + i))
+
+                tdSql.execute('''insert into table_2 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*1000, fake.random_int(min=0, max=2147483647, step=1), 
+                            fake.random_int(min=0, max=9223372036854775807, step=1), 
+                            fake.random_int(min=0, max=32767, step=1) , fake.random_int(min=0, max=127, step=1) , 
+                            fake.pyfloat() , fake.pyfloat() , fake.pystr() , fake.address() , self.ts + i))
+                tdSql.execute('''insert into regular_table_2 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*1000, fake.random_int(min=0, max=2147483647, step=1), 
+                            fake.random_int(min=0, max=9223372036854775807, step=1), 
+                            fake.random_int(min=0, max=32767, step=1) , fake.random_int(min=0, max=127, step=1) , 
+                            fake.pyfloat() , fake.pyfloat() , fake.pystr() , fake.address() , self.ts + i))
+
+                tdSql.execute('''insert into table_3 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*1000, fake.random_int(min=-2147483647, max=0, step=1), 
+                            fake.random_int(min=-9223372036854775807, max=0, step=1), 
+                            fake.random_int(min=-32767, max=0, step=1) , fake.random_int(min=-127, max=0, step=1) , 
+                            fake.pyfloat() , fake.pyfloat() , fake.pystr() , fake.address() , self.ts + i))
+                tdSql.execute('''insert into regular_table_3 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*1000, fake.random_int(min=-2147483647, max=0, step=1), 
+                            fake.random_int(min=-9223372036854775807, max=0, step=1), 
+                            fake.random_int(min=-32767, max=0, step=1) , fake.random_int(min=-127, max=0, step=1) , 
+                            fake.pyfloat() , fake.pyfloat() , fake.pystr() , fake.address() , self.ts + i))
+            tdSql.query("select count(*) from stable_1;")
+            tdSql.checkData(0,0,3000)
+            tdSql.query("select count(*) from regular_table_1;")
+            tdSql.checkData(0,0,1000)
+               
+    def dropandcreateDB_null(self):
+        self.num_null = 100
+        self.ts = 1630000000000
+        tdSql.execute('''drop database if exists db ;''')
+        tdSql.execute('''create database db keep 36500;''')
+        tdSql.execute('''use db;''')
+
+        tdSql.execute('''create stable stable_1 (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(20) , q_nchar nchar(20) , q_ts timestamp , 
+                    q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) 
+                    tags(loc nchar(20) , t_int int , t_bigint bigint , t_smallint smallint , t_tinyint tinyint, t_bool bool , t_binary binary(20) , t_nchar nchar(20) ,t_float float , t_double double , t_ts timestamp);''')
+        tdSql.execute('''create stable stable_2 (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(20) , q_nchar nchar(20) , q_ts timestamp , 
+                    q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) 
+                    tags(loc nchar(20) , t_int int , t_bigint bigint , t_smallint smallint , t_tinyint tinyint, t_bool bool , t_binary binary(20) , t_nchar nchar(20) ,t_float float , t_double double , t_ts timestamp);''')
+        
+        tdSql.execute('''create table table_1 using stable_1 tags('table_1', '0' , '0' , '0' , '0' , 0 , '0' , '0' , '0' , '0' ,'0')''')
+        tdSql.execute('''create table table_2 using stable_1 tags('table_2', '2147483647' , '9223372036854775807' , '32767' , '127' , 1 , 'binary2' , 'nchar2' , '2' , '22' , \'1999-09-09 09:09:09.090\')''')
+        tdSql.execute('''create table table_3 using stable_1 tags('table_3', '-2147483647' , '-9223372036854775807' , '-32767' , '-127' , false , 'binary3' , 'nchar3nchar3' , '-3.3' , '-33.33' , \'2099-09-09 09:09:09.090\')''')
+        tdSql.execute('''create table table_21 using stable_2 tags('table_21' , '0' , '0' , '0' , '0' , 0 , '0' , '0' , '0' , '0' ,'0')''')
+        
+        tdSql.execute('''create table regular_table_1
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(20) , q_nchar nchar(20) , q_ts timestamp , 
+                    q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) ;''')
+        tdSql.execute('''create table regular_table_2
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(20) , q_nchar nchar(20) , q_ts timestamp , 
+                    q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) ;''')
+        tdSql.execute('''create table regular_table_3
+                    (ts timestamp , q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , q_bool bool , q_binary binary(20) , q_nchar nchar(20) , q_ts timestamp , 
+                    q_int_null int , q_bigint_null bigint , q_smallint_null smallint , q_tinyint_null tinyint, q_float_null float , q_double_null double , q_bool_null bool , q_binary_null binary(20) , q_nchar_null nchar(20) , q_ts_null timestamp) ;''')
+        
+        for i in range(self.num_null):        
+            tdSql.execute('''insert into table_1  (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double , q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*10000, i, i, i, i, i, i, i, i, self.ts + i))
+            tdSql.execute('''insert into table_1  (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*3000, i, i, i, i, i, i, i, i, self.ts + i))
+            tdSql.execute('''insert into  regular_table_1 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*10000, i, i, i, i, i, i, i, i, self.ts + i))
+            tdSql.execute('''insert into  regular_table_1 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*3000 , i, i, i, i, i, i, i, i, self.ts + i))
+
+            tdSql.execute('''insert into table_21  (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*10000, i, i, i, i, i, i, i, i, self.ts + i))
+            tdSql.execute('''insert into table_21  (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*3000, i, i, i, i, i, i, i, i, self.ts + i))
+
+            tdSql.execute('''insert into table_2 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*10000, 2147483647-i, 9223372036854775807-i, 32767-i, 127-i, i, i, i, i, self.ts + i))
+            tdSql.execute('''insert into table_2 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*3000, 2147483647-i, 9223372036854775807-i, 32767-i, 127-i, i, i, i, i, self.ts + i))
+            tdSql.execute('''insert into regular_table_2 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*10000, 2147483647-i, 9223372036854775807-i, 32767-i, 127-i, i, i, i, i, self.ts + i))
+            tdSql.execute('''insert into regular_table_2 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*3000 , 2147483647-i, 9223372036854775807-i, 32767-i, 127-i, i, i, i, i, self.ts + i))
+
+            tdSql.execute('''insert into table_3 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*10000, -2147483647+i, -9223372036854775807+i, -32767+i, -127+i, -i, -i, i, i, self.ts + i))
+            tdSql.execute('''insert into table_3 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*3000, -2147483647+i, -9223372036854775807+i, -32767+i, -127+i, -i, -i, i, i, self.ts + i))
+            tdSql.execute('''insert into regular_table_3 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 0, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*10000, -2147483647+i, -9223372036854775807+i, -32767+i, -127+i, -i, -i, i, i, self.ts + i))
+            tdSql.execute('''insert into regular_table_3 (ts , q_int , q_bigint , q_smallint , q_tinyint , q_float , q_double, q_bool , q_binary , q_nchar, q_ts) values(%d, %d, %d, %d, %d, %f, %f, 1, 'binary.%s', 'nchar.%s', %d)''' 
+                            % (self.ts + i*3000 , -2147483647+i, -9223372036854775807+i, -32767+i, -127+i, -i, -i, i, i, self.ts + i))
+
+        tdSql.query("select count(*) from stable_1;")
+        tdSql.checkData(0,0,570)
+        tdSql.query("select count(*) from regular_table_1;")
+        tdSql.checkData(0,0,190)
+
+
+    def result_0(self,sql):
+        tdLog.info(sql)       
+        tdSql.query(sql)
+        tdSql.checkRows(0)
+ 
+    def dataequal(self, sql1,row1,col1, sql2,row2,col2):
+        self.sql1 = sql1
+        list1 =[]
+        tdSql.query(sql1)
+        for i1 in range(row1):
+            for j1 in range(col1):
+                list1.append(tdSql.getData(i1,j1))
+        
+        
+        tdSql.execute("reset query cache;")
+        self.sql2 = sql2  
+        list2 =[]
+        tdSql.query(sql2)
+        for i2 in range(row2):
+            for j2 in range(col2):
+                list2.append(tdSql.getData(i2,j2))
+       
+        if  (list1 == list2) and len(list2)>0:
+	        tdLog.info(("sql1:'%s' result = sql2:'%s' result") %(sql1,sql2))
+        else:
+            tdLog.info(("sql1:'%s' result != sql2:'%s' result") %(sql1,sql2))
+            return tdSql.checkEqual(list1,list2)
+                   
+    def data2in1(self, sql1,row1,col1, sql2,row2,col2):
+        self.sql1 = sql1
+        list1 =[]
+        tdSql.query(sql1)
+        for i1 in range(row1):
+            for j1 in range(col1):
+                list1.append(tdSql.getData(i1,j1))
+
+        tdSql.execute("reset query cache;")
+        self.sql2 = sql2  
+        list2 =[]
+        tdSql.query(sql2)
+        for i2 in range(row2):
+            for j2 in range(col2):
+                list2.append(tdSql.getData(i2,j2))
+       
+        if  (set(list2) <= set(list1)) and len(list2)>0:
+	        tdLog.info(("sql1:'%s' result include sql2:'%s' result") %(sql1,sql2))
+        else:
+            tdLog.info(("sql1:'%s' result not include sql2:'%s' result") %(sql1,sql2))
+            return tdSql.checkEqual(list1,list2)
+
+
+    def regular_where(self):       
+        q_int_where = ['q_bigint >= -9223372036854775807 and ' , 'q_bigint <= 9223372036854775807 and ','q_smallint >= -32767 and ', 'q_smallint <= 32767 and ',
+        'q_tinyint >= -127 and ' , 'q_tinyint <= 127 and ' , 'q_int <= 2147483647 and ' , 'q_int >= -2147483647 and ',
+        'q_tinyint != 128 and ',
+        'q_bigint between  -9223372036854775807 and 9223372036854775807 and ',' q_int between -2147483647 and 2147483647 and ',
+        'q_smallint between -32767 and 32767 and ', 'q_tinyint between -127 and 127  and ',
+        'q_bigint is not null and ' , 'q_int is not null and ' , 'q_smallint is not null and ' , 'q_tinyint is not null and ' ,]
+
+        q_fl_do_where = ['q_float >= -3.4E38 and ','q_float <= 3.4E38 and ', 'q_double >= -1.7E308 and ','q_double <= 1.7E308 and ', 
+        'q_float between -3.4E38 and 3.4E38 and ','q_double between -1.7E308 and 1.7E308 and ' ,
+        'q_float is not null and ' ,'q_double is not null and ' ,]
+
+        q_nc_bi_bo_ts_where = [ 'q_bool is not null and ' ,'q_binary is not null and ' ,'q_nchar is not null and ' ,'q_ts is not null and ' ,]
+
+        q_where = random.sample(q_int_where,2) + random.sample(q_fl_do_where,1) + random.sample(q_nc_bi_bo_ts_where,1)
+        return q_where
+        
+
+    def regular_where_all(self):       
+        q_int_where_add = ['q_bigint >= 0 and ' , 'q_smallint >= 0 and ', 'q_tinyint >= 0 and ' ,  'q_int >= 0 and ',
+        'q_bigint between  0 and 9223372036854775807 and ',' q_int between 0 and 2147483647 and ',
+        'q_smallint between 0 and 32767 and ', 'q_tinyint between 0 and 127  and ',
+        'q_bigint is not null and ' , 'q_int is not null and ' ,]
+
+        q_fl_do_where_add = ['q_float >= 0 and ', 'q_double >= 0 and ' , 'q_float between 0 and 3.4E38 and ','q_double between 0 and 1.7E308 and ' ,
+        'q_float is not null and ' ,]
+
+        q_nc_bi_bo_ts_where_add = ['q_nchar is not null and ' ,'q_ts is not null and ' ,]
+
+        q_where_add = random.sample(q_int_where_add,2) + random.sample(q_fl_do_where_add,1) + random.sample(q_nc_bi_bo_ts_where_add,1)
+        
+        q_int_where_sub = ['q_bigint <= 0 and ' , 'q_smallint <= 0 and ', 'q_tinyint <= 0 and ' ,  'q_int <= 0 and ',
+        'q_bigint between -9223372036854775807 and 0 and ',' q_int between -2147483647 and 0 and ',
+        'q_smallint between -32767 and 0 and ', 'q_tinyint between -127 and 0 and ',
+        'q_smallint is not null and ' , 'q_tinyint is not null and ' ,]
+
+        q_fl_do_where_sub = ['q_float <= 0 and ', 'q_double <= 0 and ' , 'q_float between -3.4E38 and 0 and ','q_double between -1.7E308 and 0 and ' ,
+        'q_double is not null and ' ,]
+
+        q_nc_bi_bo_ts_where_sub = ['q_bool is not null and ' ,'q_binary is not null and ' ,]
+
+        q_where_sub = random.sample(q_int_where_sub,2) + random.sample(q_fl_do_where_sub,1) + random.sample(q_nc_bi_bo_ts_where_sub,1)
+
+        return(q_where_add,q_where_sub)
+
+    def stable_where(self):       
+        q_where = self.regular_where()
+
+        t_int_where = ['t_bigint >= -9223372036854775807 and ' , 't_bigint <= 9223372036854775807 and ','t_smallint >= -32767 and ', 't_smallint <= 32767 and ',
+        't_tinyint >= -127 and ' , 't_tinyint <= 127 and ' , 't_int <= 2147483647 and ' , 't_int >= -2147483647 and ',
+        't_tinyint != 128 and ',
+        't_bigint between  -9223372036854775807 and 9223372036854775807 and ',' t_int between -2147483647 and 2147483647 and ',
+        't_smallint between -32767 and 32767 and ', 't_tinyint between -127 and 127  and ',
+        't_bigint is not null and ' , 't_int is not null and ' , 't_smallint is not null and ' , 't_tinyint is not null and ' ,]
+
+        t_fl_do_where = ['t_float >= -3.4E38 and ','t_float <= 3.4E38 and ', 't_double >= -1.7E308 and ','t_double <= 1.7E308 and ', 
+        't_float between -3.4E38 and 3.4E38 and ','t_double between -1.7E308 and 1.7E308 and ' ,
+        't_float is not null and ' ,'t_double is not null and ' ,]
+
+        t_nc_bi_bo_ts_where = [ 't_bool is not null and ' ,'t_binary is not null and ' ,'t_nchar is not null and ' ,'t_ts is not null and ' ,]
+
+        t_where = random.sample(t_int_where,2) + random.sample(t_fl_do_where,1) + random.sample(t_nc_bi_bo_ts_where,1)
+        
+        qt_where = q_where + t_where
+
+        return qt_where
+
+
+    def stable_where_all(self):  
+        regular_where_all = self.regular_where_all()
+
+        t_int_where_add = ['t_bigint >= 0 and ' , 't_smallint >= 0 and ', 't_tinyint >= 0 and ' ,  't_int >= 0 and ',
+        't_bigint between  1 and 9223372036854775807 and ',' t_int between 1 and 2147483647 and ',
+        't_smallint between 1 and 32767 and ', 't_tinyint between 1 and 127  and ',
+        't_bigint is not null and ' , 't_int is not null and ' ,]
+
+        t_fl_do_where_add = ['t_float >= 0 and ', 't_double >= 0 and ' , 't_float between 1 and 3.4E38 and ','t_double between 1 and 1.7E308 and ' ,
+        't_float is not null and ' ,]
+
+        t_nc_bi_bo_ts_where_add = ['t_nchar is not null and ' ,'t_ts is not null and ' ,]
+
+        qt_where_add = random.sample(t_int_where_add,1) + random.sample(t_fl_do_where_add,1) + random.sample(t_nc_bi_bo_ts_where_add,1) + random.sample(regular_where_all[0],2)
+        
+        t_int_where_sub = ['t_bigint <= 0 and ' , 't_smallint <= 0 and ', 't_tinyint <= 0 and ' ,  't_int <= 0 and ',
+        't_bigint between -9223372036854775807 and -1 and ',' t_int between -2147483647 and -1 and ',
+        't_smallint between -32767 and -1 and ', 't_tinyint between -127 and -1 and ',
+        't_smallint is not null and ' , 't_tinyint is not null and ' ,]
+
+        t_fl_do_where_sub = ['t_float <= 0 and ', 't_double <= 0 and ' , 't_float between -3.4E38 and -1 and ','t_double between -1.7E308 and -1 and ' ,
+        't_double is not null and ' ,]
+
+        t_nc_bi_bo_ts_where_sub = ['t_bool is not null and ' ,'t_binary is not null and ' ,]
+
+        qt_where_sub = random.sample(t_int_where_sub,1) + random.sample(t_fl_do_where_sub,1) + random.sample(t_nc_bi_bo_ts_where_sub,1) + random.sample(regular_where_all[1],2)
+
+        return(qt_where_add,qt_where_sub)
+
+
+    def run(self):
+        tdSql.prepare()
+
+        dcDB = self.dropandcreateDB_random(1)
+       
+        stable_where_all = self.stable_where_all()
+    
+        for i in range(2,len(stable_where_all[0])+1):
+            qt_where_add_new = list(combinations(stable_where_all[0],i))
+            for qt_where_add_new in qt_where_add_new:
+                qt_where_add_new = str(qt_where_add_new).replace("(","").replace(")","").replace("'","").replace("\"","").replace(",","").replace("=","")
+    
+        for j in range(2,len(stable_where_all[1])+1):
+            qt_where_sub_new = list(combinations(stable_where_all[1],j))
+            for qt_where_sub_new in qt_where_sub_new:
+                qt_where_sub_new = str(qt_where_sub_new).replace("(","").replace(")","").replace("'","").replace("\"","").replace(",","").replace("=","")
+    
+        conn1 = taos.connect(host="127.0.0.1", user="root", password="taosdata", config="/etc/taos/")
+       
+        cur1 = conn1.cursor()
+        tdSql.init(cur1, True)        
+        cur1.execute('use db ')
+        sql = 'select elapsed(ts,10s) from table_1  interval(10s)  union all select elapsed(ts,10s) from table_2 interval(10s);'
+        cur1.execute(sql)
+
+        taos_path = self.getBuildPath()+"/build/bin"
+        for i in range(2):
+            try:
+                taos_cmd1 = "%s/taos -f 2-query/TD-12228.py.sql" %taos_path
+                print(taos_cmd1)
+                _ = subprocess.check_output(taos_cmd1, shell=True).decode("utf-8")
+
+                for i in range(10):
+                    cur1.execute('use db ;')
+                    sql = 'select elapsed(ts,10s) from table_1  interval(10s)  union all select elapsed(ts,10s) from table_2 interval(10s);'
+                    
+                    cur1.execute(sql)
+
+            except Exception as e:
+                raise e   
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/system-test/2-query/TD-12229.py

+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+from posixpath import split
+import sys
+import os 
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+import subprocess
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1420041600000 # 2015-01-01 00:00:00  this is begin time for first record
+        self.num = 10
+
+
+    def caseDescription(self):
+
+        '''
+        case1 <author>:wenzhouwww [TD-12229] : 
+            this test case is an test case for unexpected union all result for stable ;
+            Root Cause: when one subclause of union returns empty result, continue to check next subclause
+        ''' 
+        return 
+
+    def prepare_data(self):
+
+         tdLog.info (" ====================================== prepare data ==================================================")
+
+         tdSql.execute('drop database if exists testdb ;')
+         tdSql.execute('create database testdb keep 36500;')
+         tdSql.execute('use testdb;')
+
+         tdSql.execute('create stable stable_1(ts timestamp ,tscol timestamp, q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, q_float float ,\
+              q_double double , bin_chars binary(20)) tags(loc nchar(20) ,ind int,tstag timestamp);')
+         tdSql.execute('create stable stable_2(ts timestamp ,tscol timestamp, q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, q_float float ,\
+              q_double double, bin_chars binary(20) ) tags(loc nchar(20),ind int,tstag timestamp);')
+         # create empty stables
+         tdSql.execute('create stable stable_empty(ts timestamp ,tscol timestamp, q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, q_float float ,\
+              q_double double, bin_chars binary(20) ) tags(loc nchar(20),ind int,tstag timestamp);')
+         tdSql.execute('create stable stable_sub_empty(ts timestamp ,tscol timestamp, q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint, q_float float ,\
+              q_double double, bin_chars binary(20) ) tags(loc nchar(20),ind int,tstag timestamp);')
+
+         # create empty sub_talbes and regular tables
+         tdSql.execute('create table sub_empty_1 using stable_sub_empty tags("sub_empty_1",3,"2015-01-01 00:02:00")')
+         tdSql.execute('create table sub_empty_2 using stable_sub_empty tags("sub_empty_2",3,"2015-01-01 00:02:00")')
+         tdSql.execute('create table regular_empty (ts timestamp , tscol timestamp ,q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , bin_chars binary(20)) ;')
+
+         tdSql.execute('create table sub_table1_1 using stable_1 tags("sub1_1",1,"2015-01-01 00:00:00")')
+         tdSql.execute('create table sub_table1_2 using stable_1 tags("sub1_2",2,"2015-01-01 00:01:00")')
+         tdSql.execute('create table sub_table1_3 using stable_1 tags("sub1_3",3,"2015-01-01 00:02:00")')
+
+         tdSql.execute('create table sub_table2_1 using stable_2 tags("sub2_1",1,"2015-01-01 00:00:00")')
+         tdSql.execute('create table sub_table2_2 using stable_2 tags("sub2_2",2,"2015-01-01 00:01:00")')
+         tdSql.execute('create table sub_table2_3 using stable_2 tags("sub2_3",3,"2015-01-01 00:02:00")')
+
+         tdSql.execute('create table regular_table_1 (ts timestamp , tscol timestamp ,q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double, bin_chars binary(20)) ;')
+         tdSql.execute('create table regular_table_2 (ts timestamp , tscol timestamp ,q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , bin_chars binary(20)) ;')
+         tdSql.execute('create table regular_table_3 (ts timestamp , tscol timestamp ,q_int int , q_bigint bigint , q_smallint smallint , q_tinyint tinyint , q_float float , q_double double , bin_chars binary(20)) ;')
+
+         tablenames = ["sub_table1_1","sub_table1_2","sub_table1_3","sub_table2_1","sub_table2_2","sub_table2_3","regular_table_1","regular_table_2","regular_table_3"]
+
+         tdLog.info("insert into records ")
+
+         for tablename in tablenames:
+
+             for i in range(self.num):  
+                 sql= 'insert into %s values(%d, %d,%d, %d, %d, %d, %f, %f, "%s")' % (tablename,self.ts + i*10000, self.ts + i*10,2147483647-i, 9223372036854775807-i, 32767-i, 127-i, i, i,("bintest"+str(i)))
+                 print(sql)
+                 tdSql.execute(sql)
+
+         tdLog.info("=============================================data prepared done!=========================")
+
+    def basic_union(self):
+
+        # empty table
+        tdSql.query('select q_int from sub_empty_1  union all  select q_int from sub_empty_2;')
+        tdSql.checkRows(0)
+
+        tdSql.error('select q_int from sub_empty_1  union all  select q_int from stable_empty group by tbname;')
+
+        tdSql.error('select q_intfrom group by tbname  union all  select q_int from sub_empty_1 group by tbname;')
+     
+        tdSql.query('select q_int from sub_empty_1  union all  select q_int from stable_empty ;')
+        tdSql.checkRows(0)
+        tdSql.query('select q_int from stable_empty  union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(0)
+
+        tdSql.query('select q_int from stable_1  union all  select q_int from stable_empty ;')
+        tdSql.checkRows(30)
+        tdSql.query('select q_int from stable_1  union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from sub_table1_2  union all  select q_int from stable_empty ;')
+        tdSql.checkRows(10)
+        tdSql.query('select q_int from sub_table1_2  union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(10)
+
+        tdSql.query('select q_int from stable_empty  union all  select q_int from sub_table1_2  ;')
+        tdSql.checkRows(10)
+        tdSql.query('select q_int from sub_empty_1  union all  select q_int from sub_table1_2  ;')
+        tdSql.checkRows(10)
+
+        tdSql.query('select q_int from regular_empty  union all  select q_int from stable_empty ;')
+        tdSql.checkRows(0)
+        tdSql.query('select q_int from regular_empty  union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(0)
+
+        tdSql.query('select q_int from stable_empty  union all  select q_int from regular_empty  ;')
+        tdSql.checkRows(0)
+        tdSql.query('select q_int from sub_empty_1  union all  select q_int from regular_empty  ;')
+        tdSql.checkRows(0)
+
+        tdSql.query('select q_int from regular_empty  union all  select q_int from regular_table_2 ;')
+        tdSql.checkRows(10)
+        tdSql.query('select q_int from regular_empty  union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(0)
+
+        tdSql.query('select q_int from stable_empty  union all  select q_int from regular_table_2  ;')
+        tdSql.checkRows(10)
+        tdSql.query('select q_int from sub_empty_1  union all  select q_int from regular_table_2  ;')
+        tdSql.checkRows(10)
+
+        # regular table
+
+        tdSql.query('select q_int from regular_table_3  union all  select q_int from regular_table_2 ;')
+        tdSql.checkRows(20)
+
+        tdSql.query('select q_int from regular_table_2  union all  select q_int from regular_table_3 ;')
+        tdSql.checkRows(20)
+
+        tdSql.query('select q_int from regular_table_3 union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(10)
+
+        tdSql.query('select q_int from sub_table1_1  union all  select q_int from regular_table_2  ;')
+        tdSql.checkRows(20)
+        tdSql.query('select q_int from regular_table_2  union all  select q_int from sub_table1_1  ;')
+        tdSql.checkRows(20)
+
+        tdSql.query('select q_int from sub_empty_1  union all  select q_int from regular_table_2 ;')
+        tdSql.checkRows(10)
+        tdSql.query('select q_int from regular_table_2  union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(10)
+
+        tdSql.query('select q_int from sub_empty_1  union all  select q_int from stable_1 ;')
+        tdSql.checkRows(30)
+        tdSql.query('select q_int from stable_1  union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from regular_table_1  union all  select q_int from stable_1  ;')
+        tdSql.checkRows(40)
+
+        tdSql.query('select q_int from stable_1  union all  select q_int from regular_table_1  ;')
+        tdSql.checkRows(40)
+
+        tdSql.query('select q_int from sub_empty_1  union all  select q_int from regular_table_2 ;')
+        tdSql.checkRows(10)
+
+        tdSql.query('select q_int from regular_table_2  union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(10)
+
+        tdSql.query('select q_int from regular_table_1  union all  select q_int from regular_table_2  ;')
+        tdSql.checkRows(20)
+
+        tdSql.query('select q_int from regular_table_2  union all  select q_int from regular_table_1  ;')
+        tdSql.checkRows(20)
+
+
+        # sub_table
+
+        tdSql.query('select q_int from sub_empty_1  union all  select q_int from sub_table2_2  ;')
+        tdSql.checkRows(10)
+
+        tdSql.query('select q_int from sub_table2_2   union all  select q_int from sub_empty_1 ;')
+        tdSql.checkRows(10)
+
+        tdSql.query('select q_int from regular_table_1  union all  select q_int from sub_table2_2   ;')
+        tdSql.checkRows(20)
+
+        tdSql.query('select q_int from sub_table2_2   union all  select q_int from regular_table_1  ;')
+        tdSql.checkRows(20)
+
+
+        tdSql.query('select q_int from sub_table2_1  union all  select q_int from sub_table2_2  ;')
+        tdSql.checkRows(20)
+
+        tdSql.query('select q_int from sub_table2_2   union all  select q_int from sub_table2_1 ;')
+        tdSql.checkRows(20)
+
+        tdSql.query('select q_int from sub_table2_1  union all  select q_int from sub_table2_2   ;')
+        tdSql.checkRows(20)
+
+        tdSql.query('select q_int from sub_table2_2   union all  select q_int from sub_table2_1  ;')
+        tdSql.checkRows(20)
+        
+        tdSql.query('select q_int from sub_table2_2   union all  select q_int from sub_table2_2  ;')
+        tdSql.checkRows(20)
+
+        # stable
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from sub_table2_2  ;')
+        tdSql.checkRows(40)
+
+        tdSql.query('select q_int from sub_table2_2   union all  select q_int from stable_1  ;')
+        tdSql.checkRows(40)
+
+        tdSql.query('select q_int from stable_2   union all  select q_int from stable_1  ;')
+        tdSql.checkRows(60)
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from stable_2  ;')
+        tdSql.checkRows(60)
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from stable_1  ;')
+        tdSql.checkRows(60)
+
+
+        tdSql.query('select q_int from stable_empty   union all  select q_int from stable_1  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from stable_empty  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from stable_empty   union all  select q_int from stable_1  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from stable_empty  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from regular_empty   union all  select q_int from stable_1  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from regular_empty  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from regular_empty   union all  select q_int from stable_1  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from regular_empty  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from stable_empty  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from sub_empty_2  union all  select q_int from stable_1  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from sub_empty_2  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from sub_empty_2   union all  select q_int from stable_1  ;')
+        tdSql.checkRows(30)
+
+        tdSql.query('select q_int from stable_1   union all  select q_int from sub_empty_2  ;')
+        tdSql.checkRows(30)
+
+        
+
+
+    def query_with_union(self):
+
+         tdLog.info (" ====================================== elapsed mixup with union all =================================================")
+
+         # union all with empty 
+
+         tdSql.query("select elapsed(ts,10s) from regular_table_1  union all  select elapsed(ts,10s) from regular_table_2;")
+
+         tdSql.query("select elapsed(ts,10s) from regular_table_1  where ts>=\"2015-01-01 00:00:00.000\"  and ts < \"2015-01-01 00:10:00.000\" interval(1s) fill(prev)  union all \
+         select elapsed(ts,10s) from regular_table_2 where ts>=\"2015-01-01 00:00:00.000\"  and ts < \"2015-01-01 00:10:00.000\" interval(1s) fill(prev);")
+         tdSql.checkRows(1200)
+         tdSql.checkData(0,1,0.1)
+         tdSql.checkData(500,1,0)
+
+         tdSql.query("select elapsed(ts,10s) from sub_empty_1  where ts>=\"2015-01-01 00:00:00.000\"  and ts < \"2015-01-01 00:10:00.000\" interval(1s) fill(prev)  union all \
+         select elapsed(ts,10s) from regular_table_2 where ts>=\"2015-01-01 00:00:00.000\"  and ts < \"2015-01-01 00:10:00.000\" interval(1s) fill(prev);")
+         tdSql.checkRows(600)
+         tdSql.checkData(0,1,0.1)
+         tdSql.checkData(500,0,0)
+
+         tdSql.query('select elapsed(ts,10s) from sub_empty_1 union all select elapsed(ts,10s) from sub_empty_2;')
+         tdSql.checkRows(0)
+
+         tdSql.query('select elapsed(ts,10s) from regular_table_1 union all select elapsed(ts,10s) from sub_empty_1;')
+         tdSql.checkRows(1)
+         tdSql.checkData(0,0,9)
+
+         tdSql.query('select elapsed(ts,10s) from sub_empty_1 union all select elapsed(ts,10s) from regular_table_1;')
+         tdSql.checkRows(1)
+         tdSql.checkData(0,0,9)
+
+         tdSql.query('select elapsed(ts,10s) from sub_empty_1 union all select elapsed(ts,10s) from sub_table1_1;')
+         tdSql.checkRows(1)
+         tdSql.checkData(0,0,9)
+
+         tdSql.query('select elapsed(ts,10s) from sub_table1_1 union all select elapsed(ts,10s) from sub_empty_1;')
+         tdSql.checkRows(1)
+         tdSql.checkData(0,0,9)
+
+         tdSql.query('select elapsed(ts,10s) from sub_empty_1 union all select elapsed(ts,10s) from regular_table_1;')
+         tdSql.checkRows(1)
+         tdSql.checkData(0,0,9)
+
+         tdSql.error('select elapsed(ts,10s) from sub_empty_1 union all select elapsed(ts,10s) from stable_sub_empty group by tbname;')
+
+         tdSql.error('select elapsed(ts,10s) from regular_table_1 union all select elapsed(ts,10s) from stable_sub_empty group by tbname;')
+
+         tdSql.query('select elapsed(ts,10s) from sub_empty_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(1s) fill(prev) union all select elapsed(ts,10s) from sub_empty_2 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(1s) fill(prev);')
+         tdSql.checkRows(0)
+
+         tdSql.error('select elapsed(ts,10s) from sub_empty_1   union all select elapsed(ts,10s) from stable_empty  group by tbname;')
+
+         tdSql.error('select elapsed(ts,10s) from sub_empty_1  interval(1s)  union all select elapsed(ts,10s) from stable_empty interval(1s)  group by tbname;')
+
+         tdSql.error('select elapsed(ts,10s) from sub_empty_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(1s) fill(prev) union all select elapsed(ts,10s) from stable_empty where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(1s) fill(prev) group by tbname;')
+
+         tdSql.query("select elapsed(ts,10s) from stable_empty  group by tbname union all select elapsed(ts,10s) from stable_empty group by tbname ;")
+         tdSql.checkRows(0)
+
+         tdSql.query("select elapsed(ts,10s) from stable_empty  group by tbname union all select elapsed(ts,10s) from stable_1 group by tbname ;")
+         tdSql.checkRows(3)
+
+         tdSql.query("select elapsed(ts,10s) from stable_1  group by tbname union all select elapsed(ts,10s) from stable_1 group by tbname ;")
+         tdSql.checkRows(6)
+         tdSql.checkData(0,0,9)
+         tdSql.checkData(5,0,9)
+
+         tdSql.query("select elapsed(ts,10s) from stable_1  group by tbname union all select elapsed(ts,10s) from stable_2 group by tbname ;")
+         tdSql.checkRows(6)
+         tdSql.checkData(0,0,9)
+         tdSql.checkData(5,0,9)
+
+         tdSql.query('select elapsed(ts,10s) from stable_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) group by tbname union all\
+              select elapsed(ts,10s) from stable_2 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) group by tbname ;')
+         tdSql.checkRows(360)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(50,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from stable_empty group by tbname union all  select elapsed(ts,10s) from stable_2 group by tbname ;')
+         tdSql.checkRows(3)
+
+         tdSql.query('select elapsed(ts,10s) from stable_1 group by tbname union all  select elapsed(ts,10s) from stable_empty group by tbname ;')
+         tdSql.checkRows(3)
+
+
+         tdSql.query('select elapsed(ts,10s) from stable_empty where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) group by tbname union all\
+              select elapsed(ts,10s) from stable_2 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) group by tbname ;')
+         tdSql.checkRows(180)
+
+         tdSql.query('select elapsed(ts,10s) from stable_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) group by tbname union all\
+              select elapsed(ts,10s) from stable_empty where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) group by tbname ;')
+         tdSql.checkRows(180)
+
+         tdSql.query('select elapsed(ts,10s) from sub_table1_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev)  union all\
+              select elapsed(ts,10s) from sub_table2_2 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) ;')
+         tdSql.checkRows(120)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(12,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from sub_table1_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev)  union all\
+              select elapsed(ts,10s) from sub_table1_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) ;')
+         tdSql.checkRows(120)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(12,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from regular_table_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev)  union all\
+              select elapsed(ts,10s) from sub_table1_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) ;')
+         tdSql.checkRows(120)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(12,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from regular_table_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev)  union all\
+              select elapsed(ts,10s) from regular_table_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) ;')
+         tdSql.checkRows(120)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(12,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from regular_table_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev)  union all\
+              select elapsed(ts,10s) from regular_table_2 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) ;')
+         tdSql.checkRows(120)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(12,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from regular_table_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev)  union all\
+              select elapsed(ts,10s) from regular_table_2 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) ;')
+         tdSql.checkRows(120)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(12,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from sub_empty_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev)  union all\
+              select elapsed(ts,10s) from regular_table_2 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) ;')
+         tdSql.checkRows(60)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(12,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from regular_table_2 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev)  union all\
+              select elapsed(ts,10s) from sub_empty_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) ;')
+         tdSql.checkRows(60)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(12,1,0)
+
+         # stable with stable 
+
+         tdSql.query('select elapsed(ts,10s) from stable_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev)  group by tbname union all\
+              select elapsed(ts,10s) from stable_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) group by tbname;')
+         tdSql.checkRows(360)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(12,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from regular_table_2  interval(10s)  union all  select elapsed(ts,10s) from sub_empty_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev);')
+         tdSql.checkRows(10)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(9,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from regular_table_2  interval(10s)  union all  select elapsed(ts,10s) from regular_table_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000" interval(10s) fill(prev) ;')
+         tdSql.checkRows(70)
+         tdSql.checkData(0,1,1)
+         tdSql.checkData(9,1,0)
+
+         tdSql.query('select elapsed(ts,10s) from regular_table_2  interval(10s) order by ts desc union all  select elapsed(ts,10s) from regular_table_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000"  interval(10s) fill(prev) order by ts asc;')
+         tdSql.checkRows(70)
+         tdSql.checkData(0,1,0)
+         tdSql.checkData(1,1,1)
+         tdSql.checkData(9,1,1)
+
+         tdSql.query('select elapsed(ts,10s) from stable_1 group by tbname, ind  order by ts desc union all  select elapsed(ts,10s) from stable_2 group by tbname, ind  order by ts asc ;')
+         tdSql.checkRows(6)
+         tdSql.checkData(0,0,9)
+
+         tdSql.query('select elapsed(ts,10s) from stable_1 group by tbname, ind  order by ts desc union all  select elapsed(ts,10s) from stable_1 group by tbname, ind  order by ts asc ;')
+         tdSql.checkRows(6)
+         tdSql.checkData(0,0,9)
+
+         tdSql.query('select elapsed(ts,10s) from stable_1  interval(10s) group by tbname,ind order by ts desc union all  select elapsed(ts,10s) from stable_2 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000"  interval(10s) fill(prev) group by tbname,ind order by ts asc ;')
+         tdSql.checkRows(210)
+         tdSql.checkData(0,1,0)
+         tdSql.checkData(1,1,1)
+         tdSql.checkData(9,1,1)
+
+         tdSql.query('select elapsed(ts,10s) from stable_2  interval(10s) group by tbname,ind order by ts desc union all  select elapsed(ts,10s) from stable_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000"  interval(10s) fill(prev) group by tbname,ind order by ts asc ;')
+         tdSql.checkRows(210)
+         tdSql.checkData(0,1,0)
+         tdSql.checkData(1,1,1)
+         tdSql.checkData(9,1,1)
+
+         tdSql.query('select elapsed(ts,10s) from stable_1  interval(10s) group by tbname,ind order by ts desc union all  select elapsed(ts,10s) from stable_1 where ts>="2015-01-01 00:00:00.000"  and ts < "2015-01-01 00:10:00.000"  interval(10s) fill(prev) group by tbname,ind order by ts asc ;')
+         tdSql.checkRows(210)
+         tdSql.checkData(0,1,0)
+         tdSql.checkData(1,1,1)
+         tdSql.checkData(9,1,1)
+
+    def run(self):
+        tdSql.prepare()
+        self.prepare_data()
+        self.basic_union()
+        self.query_with_union()
+
+     
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+
+

tests/system-test/2-query/TD-12344.py

+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+from posixpath import split
+import sys
+import os 
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+import subprocess
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1420041600000 # 2015-01-01 00:00:00  this is begin time for first record
+        self.num = 10
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root) - len("/build/bin")]
+                    break
+        return buildPath
+
+
+    def caseDescription(self):
+
+        '''
+        case1 <wenzhouwww>: [TD-12344] : 
+            this test case is an test case for unexpectd crash for session function , it will coredump taoshell ;
+            
+        ''' 
+        return 
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root)-len("/build/bin")]
+                    break
+        return buildPath
+
+    def getcfgPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+        print(selfPath)
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+        
+        cfgPath = projPath + "/sim/dnode1/cfg  "
+        return cfgPath
+   
+    def run(self):
+        tdSql.prepare()
+        tdSql.execute("create database if not exists testdb keep 36500;")
+        tdSql.execute("use testdb;")
+        tdSql.execute("create stable st (ts timestamp , id int , value double) tags(hostname binary(10) ,ind int);")
+        for i in range(self.num):
+            tdSql.execute("insert into sub_%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+100*i,i*2,i+10.00))
+            tdSql.execute("insert into sub_%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+200*i,i*2,i+10.00))
+            tdSql.execute("insert into sub_%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+300*i,i*2,i+10.00))
+            tdSql.execute("insert into sub_%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+10000*i,i*2,i+10.00))
+
+        cfg_path = self.getcfgPath()
+        print(cfg_path)
+        tdSql.execute('select elapsed(ts,10s) from testdb.st   where ts>=\"2015-01-01 00:00:00.000\"  and ts < \"2015-01-01 00:10:00.000\" session(ts,1d) group by tbname;')  
+        
+        datas = tdSql.getResult('select elapsed(ts,10s) from testdb.st   where ts>=\"2015-01-01 00:00:00.000\"  and ts < \"2015-01-01 00:10:00.000\" session(ts,1d) group by tbname;') 
+        table_names = ["sub_%s"%str(i) for i in  range(10)]
+        # print(table_names)
+
+        for index , table_name in enumerate(table_names):
+            tdSql.query("select elapsed(ts,10s) from testdb.%s   where ts>=\"2015-01-01 00:00:00.000\"  and ts < \"2015-01-01 00:10:00.000\" session(ts,1d) ;"%table_name)
+            # print(datas)
+            tdSql.checkData(0,1,datas[index][1])
+
+
+        for i in range(10):
+            taos_cmd1= "taos  -c %s -s 'select elapsed(ts,10s) from testdb.st   where ts>=\"2015-01-01 00:00:00.000\"  and ts < \"2015-01-01 00:10:00.000\" session(ts,1d) group by tbname;' " % (cfg_path)
+            # print(taos_cmd1)
+            _ = subprocess.check_output(taos_cmd1, shell=True).decode("utf-8") 
+        
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+
+

tests/system-test/2-query/TD-12388.py

+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+from posixpath import split
+import sys
+import os 
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1420041600000 # 2015-01-01 00:00:00  this is begin time for first record
+        self.num = 10
+
+    def caseDescription(self):
+
+        '''
+        case1 <authors>: wenzhouwww[TD-12388] : 
+            this test case is an test case for unit time params about elapsed function. 
+
+        ''' 
+        return 
+
+   
+    def run(self):
+        tdSql.prepare()
+        tdSql.execute("create database if not exists testdb keep 36500;")
+        tdSql.execute("use testdb;")
+        tdSql.execute("create stable st (ts timestamp , id int , value double) tags(hostname binary(10) ,ind int);")
+        for i in range(self.num):
+            tdSql.execute("insert into sub_%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+10000*i,i*2,i+10.00))
+
+        tdSql.error("select elapsed(ts,now+1d-3m) from st group by tbname;")
+        tdSql.error("select elapsed(ts,now) from st group by tbname;")
+        tdSql.error("select elapsed(ts,now*10) from st group by tbname;")
+        tdSql.error("select elapsed(ts,now*2s) from st group by tbname;")
+        tdSql.error("select elapsed(ts,now*2s) from sub_1;")
+       
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
+
+

tests/system-test/2-query/TD-12593.py

+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+from posixpath import split
+import sys
+import os 
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+import subprocess
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1420041600000 # 2015-01-01 00:00:00  this is begin time for first record
+        self.num = 10
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root) - len("/build/bin")]
+                    break
+        return buildPath
+
+
+    def caseDescription(self):
+
+        '''
+        case1 <wenzhouwww>:[TD-12593] : 
+            this test case is an value error about nest query and inner query sort .
+        ''' 
+        return 
+
+   
+    def run(self):
+        tdSql.prepare()
+        tdSql.execute("create database if not exists testdb keep 36500;")
+        tdSql.execute("use testdb;")
+        tdSql.execute("create stable st (ts timestamp , id int , value double) tags(hostname binary(10) ,ind int);")
+        for i in range(self.num):
+            tdSql.execute("insert into tb%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+100*i,i*2,i+10.00))
+            tdSql.execute("insert into tb%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+200*i,i*2,i+10.00))
+            tdSql.execute("insert into tb%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+300*i,i*2,i+10.00))
+            tdSql.execute("insert into tb%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+10000*i,i*2,i+10.00))
+
+        tdSql.query('select * from (select csum(value) from tb1 order by ts  asc );')
+        tdSql.checkRows(4)
+        tdSql.checkData(0,1,11.000000000)
+        tdSql.checkData(1,1,22.000000000)
+        tdSql.checkData(2,1,33.000000000)
+        tdSql.checkData(3,1,44.000000000)
+        
+        tdSql.query('select * from (select csum(value) from tb1 order by ts  desc );')
+        tdSql.checkRows(4)
+        tdSql.checkData(0,1,44.000000000)
+        tdSql.checkData(1,1,33.000000000)
+        tdSql.checkData(2,1,22.000000000)
+        tdSql.checkData(3,1,11.000000000)
+
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file

tests/system-test/2-query/TD-12594.py

+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+from posixpath import split
+import sys
+import os 
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+import subprocess
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1420041600000 # 2015-01-01 00:00:00  this is begin time for first record
+        self.num = 10
+
+    def getBuildPath(self):
+        selfPath = os.path.dirname(os.path.realpath(__file__))
+
+        if ("community" in selfPath):
+            projPath = selfPath[:selfPath.find("community")]
+        else:
+            projPath = selfPath[:selfPath.find("tests")]
+
+        for root, dirs, files in os.walk(projPath):
+            if ("taosd" in files):
+                rootRealPath = os.path.dirname(os.path.realpath(root))
+                if ("packaging" not in rootRealPath):
+                    buildPath = root[:len(root) - len("/build/bin")]
+                    break
+        return buildPath
+
+
+    def caseDescription(self):
+
+        '''
+        case1 <wenzhouwww>:[TD-12594] : 
+            this test case is an value error about nest query and inner query sort for elapsed and twa  .
+        ''' 
+        return 
+
+   
+    def run(self):
+        tdSql.prepare()
+        tdSql.execute("create database if not exists testdb keep 36500;")
+        tdSql.execute("use testdb;")
+        tdSql.execute("create stable st (ts timestamp , id int , value double) tags(hostname binary(10) ,ind int);")
+        for i in range(self.num):
+            tdSql.execute("insert into tb%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+100*i,i*2,i+10.00))
+            tdSql.execute("insert into tb%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+200*i,i*2,i+10.00))
+            tdSql.execute("insert into tb%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+300*i,i*2,i+10.00))
+            tdSql.execute("insert into tb%s using st tags('host_%s' , %d) values (%d , %d , %f );"%(str(i),str(i),i*10,self.ts+10000*i,i*2,i+10.00))
+
+        tdSql.query('select elapsed(ts) from (select csum(value) from tb1 order by ts desc) interval(1s);')
+        tdSql.checkRows(1)
+        tdSql.checkData(0,1,9900.000000000)
+
+        tdSql.query('select twa(data) from (select csum(value) data from tb1 order by ts desc) interval(1s);')
+        tdSql.checkRows(1)
+        tdSql.checkData(0,1,16.833333333)
+     
+        tdSql.query('select elapsed(ts) from (select csum(value) from tb1 order by ts asc) interval(1s);')
+        tdSql.checkRows(1)
+        tdSql.checkData(0,1,9900.000000000)
+
+        tdSql.query('select twa(data) from (select csum(value) data from tb1 order by ts asc) interval(1s);')
+        tdSql.checkRows(1)
+        tdSql.checkData(0,1,16.833333333)
+
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file

tests/system-test/3-connectors/c#/TDengineDriver/TDengineDriver.cs

+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+
+namespace TDengineDriver
+{
+    public enum TDengineDataType
+    {
+        TSDB_DATA_TYPE_NULL = 0,     // 1 bytes
+        TSDB_DATA_TYPE_BOOL = 1,     // 1 bytes
+        TSDB_DATA_TYPE_TINYINT = 2,  // 1 bytes
+        TSDB_DATA_TYPE_SMALLINT = 3, // 2 bytes
+        TSDB_DATA_TYPE_INT = 4,      // 4 bytes
+        TSDB_DATA_TYPE_BIGINT = 5,   // 8 bytes
+        TSDB_DATA_TYPE_FLOAT = 6,    // 4 bytes
+        TSDB_DATA_TYPE_DOUBLE = 7,   // 8 bytes
+        TSDB_DATA_TYPE_BINARY = 8,   // string
+        TSDB_DATA_TYPE_TIMESTAMP = 9,// 8 bytes
+        TSDB_DATA_TYPE_NCHAR = 10,   // unicode string
+        TSDB_DATA_TYPE_UTINYINT = 11,// 1 byte
+        TSDB_DATA_TYPE_USMALLINT = 12,// 2 bytes
+        TSDB_DATA_TYPE_UINT = 13,    // 4 bytes
+        TSDB_DATA_TYPE_UBIGINT = 14,   // 8 bytes
+        TSDB_DATA_TYPE_JSONTAG = 15   //4096 bytes 
+    }
+
+    public enum TDengineInitOption
+    {
+        TSDB_OPTION_LOCALE = 0,
+        TSDB_OPTION_CHARSET = 1,
+        TSDB_OPTION_TIMEZONE = 2,
+        TDDB_OPTION_CONFIGDIR = 3,
+        TDDB_OPTION_SHELL_ACTIVITY_TIMER = 4
+    }
+    enum TaosField
+    {
+        STRUCT_SIZE = 68,
+        NAME_LENGTH = 65,
+        TYPE_OFFSET = 65,
+        BYTES_OFFSET = 66,
+
+    }
+    public class TDengineMeta
+    {
+        public string name;
+        public short size;
+        public byte type;
+        public string TypeName()
+        {
+            switch ((TDengineDataType)type)
+            {
+                case TDengineDataType.TSDB_DATA_TYPE_BOOL:
+                    return "BOOL";
+                case TDengineDataType.TSDB_DATA_TYPE_TINYINT:
+                    return "TINYINT";
+                case TDengineDataType.TSDB_DATA_TYPE_SMALLINT:
+                    return "SMALLINT";
+                case TDengineDataType.TSDB_DATA_TYPE_INT:
+                    return "INT";
+                case TDengineDataType.TSDB_DATA_TYPE_BIGINT:
+                    return "BIGINT";
+                case TDengineDataType.TSDB_DATA_TYPE_UTINYINT:
+                    return "TINYINT UNSIGNED";
+                case TDengineDataType.TSDB_DATA_TYPE_USMALLINT:
+                    return "SMALLINT UNSIGNED";
+                case TDengineDataType.TSDB_DATA_TYPE_UINT:
+                    return "INT UNSIGNED";
+                case TDengineDataType.TSDB_DATA_TYPE_UBIGINT:
+                    return "BIGINT UNSIGNED";
+                case TDengineDataType.TSDB_DATA_TYPE_FLOAT:
+                    return "FLOAT";
+                case TDengineDataType.TSDB_DATA_TYPE_DOUBLE:
+                    return "DOUBLE";
+                case TDengineDataType.TSDB_DATA_TYPE_BINARY:
+                    return "STRING";
+                case TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP:
+                    return "TIMESTAMP";
+                case TDengineDataType.TSDB_DATA_TYPE_NCHAR:
+                    return "NCHAR";
+                case TDengineDataType.TSDB_DATA_TYPE_JSONTAG:
+                    return "JSON";
+                default:
+                    return "undefine";
+            }
+        }
+    }
+
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
+    public struct TAOS_BIND
+    {
+        // column type
+        public int buffer_type;
+        // one column value           
+        public IntPtr buffer;
+        // unused               
+        public Int32 buffer_length;
+        // actual value length in buffer   
+        public IntPtr length;
+        // indicates the column value is null or not      
+        public IntPtr is_null;
+        // unused            
+        public int is_unsigned;
+        // unused           
+        public IntPtr error;
+        public Int64 u;
+        public uint allocated;
+    }
+
+
+    [StructLayout(LayoutKind.Sequential)]
+    public struct TAOS_MULTI_BIND
+    {
+        // column type
+        public int buffer_type;
+
+        // array, one or more lines column value
+        public IntPtr buffer;
+
+        //length of element in TAOS_MULTI_BIND.buffer (for binary and nchar it is the longest element's length)
+        public ulong buffer_length;
+
+        //array, actual data length for each value
+        public IntPtr length;
+
+        //array, indicates each column value is null or not
+        public IntPtr is_null;
+
+        // line number, or the values number in buffer 
+        public int num;
+    }
+
+
+    public class TDengine
+    {
+        public const int TSDB_CODE_SUCCESS = 0;
+
+        [DllImport("taos", EntryPoint = "taos_init", CallingConvention = CallingConvention.Cdecl)]
+        static extern public void Init();
+
+        [DllImport("taos", EntryPoint = "taos_cleanup", CallingConvention = CallingConvention.Cdecl)]
+        static extern public void Cleanup();
+
+        [DllImport("taos", EntryPoint = "taos_options", CallingConvention = CallingConvention.Cdecl)]
+        static extern public void Options(int option, string value);
+
+        [DllImport("taos", EntryPoint = "taos_connect", CallingConvention = CallingConvention.Cdecl)]
+        static extern public IntPtr Connect(string ip, string user, string password, string db, short port);
+
+        [DllImport("taos", EntryPoint = "taos_errstr", CallingConvention = CallingConvention.Cdecl)]
+        static extern private IntPtr taos_errstr(IntPtr res);
+        static public string Error(IntPtr res)
+        {
+            IntPtr errPtr = taos_errstr(res);
+            return Marshal.PtrToStringAnsi(errPtr);
+        }
+
+        [DllImport("taos", EntryPoint = "taos_errno", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int ErrorNo(IntPtr res);
+
+        [DllImport("taos", EntryPoint = "taos_query", CallingConvention = CallingConvention.Cdecl)]
+        static extern public IntPtr Query(IntPtr conn, string sqlstr);
+
+        [DllImport("taos", EntryPoint = "taos_affected_rows", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int AffectRows(IntPtr res);
+
+        [DllImport("taos", EntryPoint = "taos_field_count", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int FieldCount(IntPtr res);
+
+        [DllImport("taos", EntryPoint = "taos_fetch_fields", CallingConvention = CallingConvention.Cdecl)]
+        static extern private IntPtr taos_fetch_fields(IntPtr res);
+        static public List<TDengineMeta> FetchFields(IntPtr res)
+        {
+            // const int fieldSize = 68;
+
+            List<TDengineMeta> metas = new List<TDengineMeta>();
+            if (res == IntPtr.Zero)
+            {
+                return metas;
+            }
+
+            int fieldCount = FieldCount(res);
+            IntPtr fieldsPtr = taos_fetch_fields(res);
+
+            for (int i = 0; i < fieldCount; ++i)
+            {
+                int offset = i * (int)TaosField.STRUCT_SIZE;
+                TDengineMeta meta = new TDengineMeta();
+                meta.name = Marshal.PtrToStringAnsi(fieldsPtr + offset);
+                meta.type = Marshal.ReadByte(fieldsPtr + offset + (int)TaosField.TYPE_OFFSET);
+                meta.size = Marshal.ReadInt16(fieldsPtr + offset + (int)TaosField.BYTES_OFFSET);
+                metas.Add(meta);
+            }
+
+
+            return metas;
+        }
+
+        [DllImport("taos", EntryPoint = "taos_fetch_row", CallingConvention = CallingConvention.Cdecl)]
+        static extern public IntPtr FetchRows(IntPtr res);
+
+        [DllImport("taos", EntryPoint = "taos_free_result", CallingConvention = CallingConvention.Cdecl)]
+        static extern public IntPtr FreeResult(IntPtr res);
+
+        [DllImport("taos", EntryPoint = "taos_close", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int Close(IntPtr taos);
+
+        //get precision of restultset
+        [DllImport("taos", EntryPoint = "taos_result_precision", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int ResultPrecision(IntPtr taos);
+
+
+
+        //stmt APIs:
+        /// <summary>
+        /// init a TAOS_STMT object for later use.
+        /// </summary>
+        /// <param name="taos">a valid taos connection</param>
+        /// <returns>
+        /// Not NULL returned for success, NULL for failure. And it should be freed with taos_stmt_close. 
+        /// </returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_init", CallingConvention = CallingConvention.Cdecl)]
+        static extern public IntPtr StmtInit(IntPtr taos);
+
+        /// <summary>
+        /// prepare a sql statement，'sql' should be a valid INSERT/SELECT statement.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <param name="sql">sql string,used to bind parameters with</param>
+        /// <param name="length">no used</param>
+        /// <returns>0 for success, non-zero for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_prepare", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int StmtPrepare(IntPtr stmt, string sql);
+
+        /// <summary>
+        /// For INSERT only. Used to bind table name as a parmeter for the input stmt object.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <param name="name">table name you want to  bind</param>
+        /// <returns>0 for success, non-zero for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_set_tbname", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int StmtSetTbname(IntPtr stmt, string name);
+
+        /// <summary>
+        /// For INSERT only. 
+        /// Set a table name for binding table name as parameter. Only used for binding all tables 
+        /// in one stable, user application must call 'loadTableInfo' API to load all table 
+        /// meta before calling this API. If the table meta is not cached locally, it will return error.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <param name="name">table name which is belong to an stable</param>
+        /// <returns>0 for success, non-zero for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_set_sub_tbname", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int StmtSetSubTbname(IntPtr stmt, string name);
+
+        /// <summary>
+        /// For INSERT only.
+        /// set a table name for binding table name as parameter and tag values for all  tag parameters. 
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <param name="name">use to set table name</param>
+        /// <param name="tags">
+        /// is an array contains all tag values,each item in the array represents a tag column's value.
+        ///  the item number and sequence should keep consistence with that in stable tag definition.
+        /// </param>
+        /// <returns>0 for success, non-zero for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_set_tbname_tags", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int StmtSetTbnameTags(IntPtr stmt, string name, TAOS_BIND[] tags);
+
+        /// <summary>
+        /// For both INSERT and SELECT.
+        /// bind a whole line data.  
+        /// The usage of structure TAOS_BIND is the same with MYSQL_BIND in MySQL.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <param name="bind">
+        /// points to an array contains the whole line data.
+        /// the item number and sequence should keep consistence with columns in sql statement.
+        /// </param>
+        /// <returns>0 for success, non-zero for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_bind_param", CallingConvention = CallingConvention.Cdecl, SetLastError = true)]
+        static extern public int StmtBindParam(IntPtr stmt, TAOS_BIND[] bind);
+
+        /// <summary>
+        /// bind a single column's data, INTERNAL used and for INSERT only. 
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <param name="bind">points to a column's data which could be the one or more lines. </param>
+        /// <param name="colIdx">the column's index in prepared sql statement, it starts from 0.</param>
+        /// <returns>0 for success, non-zero for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_bind_single_param_batch", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int StmtBindSingleParamBatch(IntPtr stmt, ref TAOS_MULTI_BIND bind, int colIdx);
+
+        /// <summary>
+        /// for INSERT only
+        /// bind one or multiple lines data. The parameter 'bind'  
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <param name="bind">
+        /// points to an array contains one or more lines data.Each item in array represents a column's value(s),
+        /// the item number and sequence should keep consistence with columns in sql statement. 
+        /// </param>
+        /// <returns>0 for success, non-zero for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_bind_param_batch", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int StmtBindParamBatch(IntPtr stmt, [In, Out] TAOS_MULTI_BIND[] bind);
+
+        /// <summary>
+        /// For INSERT only.
+        /// add all current bound parameters to batch process. Must be called after each call to 
+        /// StmtBindParam/StmtBindSingleParamBatch, or all columns binds for one or more lines 
+        /// with StmtBindSingleParamBatch. User application can call any bind parameter 
+        /// API again to bind more data lines after calling to this API.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <returns>0 for success, non-zero for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_add_batch", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int StmtAddBatch(IntPtr stmt);
+
+        /// <summary>
+        /// actually execute the INSERT/SELECT sql statement. 
+        /// User application can continue to bind new data after calling to this API.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <returns></returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_execute", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int StmtExecute(IntPtr stmt);
+
+        /// <summary>
+        /// For SELECT only,getting the query result. User application should free it with API 'FreeResult' at the end.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <returns>Not NULL for success, NULL for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_use_result", CallingConvention = CallingConvention.Cdecl)]
+        static extern public IntPtr StmtUseResult(IntPtr stmt);
+
+        /// <summary>
+        /// close STMT object and free resources.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <returns>0 for success, non-zero for failure.</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_close", CallingConvention = CallingConvention.Cdecl)]
+        static extern public int StmtClose(IntPtr stmt);
+
+        [DllImport("taos", EntryPoint = "taos_load_table_info", CallingConvention = CallingConvention.Cdecl)]
+        /// <summary>
+        /// user application must call this API to  load all tables meta,
+        /// </summary>
+        /// <param name="taos">taos connection</param>
+        /// <param name="tableList">tablelist</param>
+        /// <returns></returns>
+        static extern private int LoadTableInfoDll(IntPtr taos, string tableList);
+
+        /// <summary>
+        /// user application  call this API to load all tables meta,this method call the native
+        /// method LoadTableInfoDll.
+        /// this method must be called before StmtSetSubTbname(IntPtr stmt, string name);
+        /// </summary>
+        /// <param name="taos">taos connection</param>
+        /// <param name="tableList">tables need to load meta info are form in an array</param>
+        /// <returns></returns>
+        static public int LoadTableInfo(IntPtr taos, string[] tableList)
+        {
+            string listStr = string.Join(",", tableList);
+            return LoadTableInfoDll(taos, listStr);
+        }
+
+        /// <summary>
+        /// get detail error message when got failure for any stmt API call. If not failure, the result 
+        /// returned in this API is unknown.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <returns>piont the error message</returns>
+        [DllImport("taos", EntryPoint = "taos_stmt_errstr", CallingConvention = CallingConvention.Cdecl)]
+        static extern private IntPtr StmtErrPtr(IntPtr stmt);
+
+        /// <summary>
+        /// get detail error message when got failure for any stmt API call. If not failure, the result 
+        /// returned in this API is unknown.
+        /// </summary>
+        /// <param name="stmt">could be the value returned by 'StmtInit', that may be a valid object or NULL.</param>
+        /// <returns>error string</returns>
+        static public string StmtErrorStr(IntPtr stmt)
+        {
+            IntPtr stmtErrPrt = StmtErrPtr(stmt);
+            return Marshal.PtrToStringAnsi(stmtErrPrt);
+        }
+
+        [DllImport("taos", EntryPoint = "taos_fetch_lengths", CallingConvention = CallingConvention.Cdecl)]
+        static extern public IntPtr FetchLengths(IntPtr taos);
+    }
+}

tests/system-test/3-connectors/c#/TDengineDriver/TDengineDriver.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+  </PropertyGroup>
+
+</Project>

tests/system-test/3-connectors/c#/TDengineDriver/TaosBind.cs

+using System;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace TDengineDriver
+{
+    /// <summary>
+    /// this class used to get an instance of struct of TAO_BIND or TAOS_MULTI_BIND
+    /// And the instance is corresponding with TDengine data type. For example, calling 
+    /// "bindBinary"  will return a TAOS_BIND object that is corresponding with TDengine's
+    /// binary type.
+    /// </summary>
+    public class TaosBind
+    {
+        public static TAOS_BIND BindBool(bool val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+            byte[] boolByteArr = BitConverter.GetBytes(val);
+            int boolByteArrSize = Marshal.SizeOf(boolByteArr[0]) * boolByteArr.Length;
+            IntPtr bo = Marshal.AllocHGlobal(1);
+            Marshal.Copy(boolByteArr, 0, bo, boolByteArr.Length);
+
+            int length = sizeof(Boolean);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BOOL;
+            bind.buffer = bo;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+        public static TAOS_BIND BindTinyInt(sbyte val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+
+            byte[] tinyIntByteArr = BitConverter.GetBytes(val);
+            int tinyIntByteArrSize = Marshal.SizeOf(tinyIntByteArr[0]) * tinyIntByteArr.Length;
+            IntPtr uManageTinyInt = Marshal.AllocHGlobal(tinyIntByteArrSize);
+            Marshal.Copy(tinyIntByteArr, 0, uManageTinyInt, tinyIntByteArr.Length);
+
+            int length = sizeof(sbyte);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_TINYINT;
+            bind.buffer = uManageTinyInt;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+            return bind;
+
+        }
+
+        public static TAOS_BIND BindSmallInt(short val)
+        {
+
+            TAOS_BIND bind = new TAOS_BIND();
+            IntPtr uManageSmallInt = Marshal.AllocHGlobal(sizeof(short));
+            Marshal.WriteInt16(uManageSmallInt, val);
+
+            int length = sizeof(short);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_SMALLINT;
+            bind.buffer = uManageSmallInt;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindInt(int val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+            IntPtr uManageInt = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(uManageInt, val);
+
+            int length = sizeof(int);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_INT;
+            bind.buffer = uManageInt;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindBigInt(long val)
+        {
+
+            TAOS_BIND bind = new TAOS_BIND();
+            IntPtr uManageBigInt = Marshal.AllocHGlobal(sizeof(long));
+            Marshal.WriteInt64(uManageBigInt, val);
+
+            int length = sizeof(long);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BIGINT;
+            bind.buffer = uManageBigInt;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindUTinyInt(byte val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+
+            IntPtr uManageTinyInt = Marshal.AllocHGlobal(sizeof(byte));
+            Marshal.WriteByte(uManageTinyInt, val);
+
+            int length = sizeof(byte);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UTINYINT;
+            bind.buffer = uManageTinyInt;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindUSmallInt(UInt16 val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+
+            byte[] uSmallIntByteArr = BitConverter.GetBytes(val);
+            int usmallSize = Marshal.SizeOf(uSmallIntByteArr[0]) * uSmallIntByteArr.Length;
+            IntPtr uManageUnsignSmallInt = Marshal.AllocHGlobal(usmallSize);
+            Marshal.Copy(uSmallIntByteArr, 0, uManageUnsignSmallInt, uSmallIntByteArr.Length);
+
+            int length = sizeof(UInt16);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_USMALLINT;
+            bind.buffer = uManageUnsignSmallInt;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindUInt(uint val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+
+            byte[] uManageIntByteArr = BitConverter.GetBytes(val);
+            int usmallSize = Marshal.SizeOf(uManageIntByteArr[0]) * uManageIntByteArr.Length;
+            IntPtr uManageInt = Marshal.AllocHGlobal(usmallSize);
+            Marshal.Copy(uManageIntByteArr, 0, uManageInt, uManageIntByteArr.Length);
+
+            int length = sizeof(uint);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UINT;
+            bind.buffer = uManageInt;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindUBigInt(ulong val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+
+            byte[] uManageBigIntByteArr = BitConverter.GetBytes(val);
+            int usmallSize = Marshal.SizeOf(uManageBigIntByteArr[0]) * uManageBigIntByteArr.Length;
+            IntPtr uManageBigInt = Marshal.AllocHGlobal(usmallSize);
+            Marshal.Copy(uManageBigIntByteArr, 0, uManageBigInt, uManageBigIntByteArr.Length);
+
+            int length = sizeof(ulong);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UBIGINT;
+            bind.buffer = uManageBigInt;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindFloat(float val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+
+            byte[] floatByteArr = BitConverter.GetBytes(val);
+            int floatByteArrSize = Marshal.SizeOf(floatByteArr[0]) * floatByteArr.Length;
+            IntPtr uManageFloat = Marshal.AllocHGlobal(floatByteArrSize);
+            Marshal.Copy(floatByteArr, 0, uManageFloat, floatByteArr.Length);
+
+            int length = sizeof(float);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_FLOAT;
+            bind.buffer = uManageFloat;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindDouble(Double val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+
+            byte[] doubleByteArr = BitConverter.GetBytes(val);
+            int doubleByteArrSize = Marshal.SizeOf(doubleByteArr[0]) * doubleByteArr.Length;
+            IntPtr uManageDouble = Marshal.AllocHGlobal(doubleByteArrSize);
+            Marshal.Copy(doubleByteArr, 0, uManageDouble, doubleByteArr.Length);
+
+            int length = sizeof(Double);
+            IntPtr lengPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_DOUBLE;
+            bind.buffer = uManageDouble;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindBinary(String val)
+        {
+
+            TAOS_BIND bind = new TAOS_BIND();
+            IntPtr umanageBinary = Marshal.StringToHGlobalAnsi(val);
+
+            var strToBytes = System.Text.Encoding.Default.GetBytes(val);
+            int leng = strToBytes.Length;
+            IntPtr lenPtr = Marshal.AllocHGlobal(sizeof(ulong));
+            Marshal.WriteInt64(lenPtr, leng);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BINARY;
+            bind.buffer = umanageBinary;
+            bind.buffer_length = leng;
+            bind.length = lenPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+        public static TAOS_BIND BindNchar(String val)
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+            var strToBytes = System.Text.Encoding.Default.GetBytes(val);
+            IntPtr umanageNchar = (IntPtr)Marshal.StringToHGlobalAnsi(val);
+
+
+            int leng = strToBytes.Length;
+            IntPtr lenPtr = Marshal.AllocHGlobal(sizeof(ulong));
+            Marshal.WriteInt64(lenPtr, leng);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_NCHAR;
+            bind.buffer = umanageNchar;
+            bind.buffer_length = leng;
+            bind.length = lenPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+        }
+
+        public static TAOS_BIND BindNil()
+        {
+            TAOS_BIND bind = new TAOS_BIND();
+
+            int isNull = 1;//IntPtr.Size;
+            IntPtr lenPtr = Marshal.AllocHGlobal(sizeof(int));
+            Marshal.WriteInt32(lenPtr, isNull);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_NULL;
+            bind.is_null = lenPtr;
+            return bind;
+        }
+
+        public static TAOS_BIND BindTimestamp(long ts)
+        {
+
+            TAOS_BIND bind = new TAOS_BIND();
+            IntPtr uManageTs = Marshal.AllocHGlobal(sizeof(long));
+            Marshal.WriteInt64(uManageTs, ts);
+
+            int length = sizeof(long);
+            IntPtr lengPtr = Marshal.AllocHGlobal(4);
+            Marshal.WriteInt32(lengPtr, length);
+
+            bind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP;
+            bind.buffer = uManageTs;
+            bind.buffer_length = length;
+            bind.length = lengPtr;
+            bind.is_null = IntPtr.Zero;
+
+            return bind;
+
+        }
+
+        public static void FreeTaosBind(TAOS_BIND[] binds)
+        {
+            foreach (TAOS_BIND bind in binds)
+            {
+                Marshal.FreeHGlobal(bind.buffer);
+                Marshal.FreeHGlobal(bind.length);
+                if (bind.is_null != IntPtr.Zero)
+                {
+                    // Console.WriteLine(bind.is_null);
+                    Marshal.FreeHGlobal(bind.is_null);
+                }
+
+            }
+        }
+    }
+
+}
\ No newline at end of file

tests/system-test/3-connectors/c#/TDengineDriver/TaosMultiBind.cs

+using System;
+using System.Text;
+using System.Runtime.InteropServices;
+
+
+namespace TDengineDriver
+{
+    public class TaosMultiBind
+    {
+        public static TAOS_MULTI_BIND MultiBindBool(bool?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            //the size of buffer array element
+            int typeSize = sizeof(bool);
+            //size of int 
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr unmanagedBoolArr = Marshal.AllocHGlobal(elementCount * typeSize);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                //set TAOS_MULTI_BIND.buffer
+                Marshal.WriteByte(unmanagedBoolArr, typeSize * i, Convert.ToByte(arr[i] ?? false));
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+            }
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BOOL;
+            multiBind.buffer = unmanagedBoolArr;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindTinyInt(sbyte?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            //the size of buffer array element
+            int typeSize = sizeof(byte);
+            int byteSize = sizeof(byte);
+            //size of int 
+            int intSize = sizeof(int);
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr unmanagedTintIntArr = Marshal.AllocHGlobal(elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(intSize * elementCount);
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                Byte[] toByteArr = BitConverter.GetBytes(arr[i] ?? sbyte.MinValue);
+
+                //set TAOS_MULTI_BIND.buffer
+                Marshal.WriteByte(unmanagedTintIntArr, typeSize * i, toByteArr[0]);
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+            }
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_TINYINT;
+            multiBind.buffer = unmanagedTintIntArr;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindSmallInt(short?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            //the size of buffer array element
+            int typeSize = sizeof(short);
+            //size of int 
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr unmanagedSmallIntArr = Marshal.AllocHGlobal(elementCount * typeSize);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                //set TAOS_MULTI_BIND.buffer
+                Marshal.WriteInt16(unmanagedSmallIntArr, typeSize * i, arr[i] ?? short.MinValue);
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+
+            }
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_SMALLINT;
+            multiBind.buffer = unmanagedSmallIntArr;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindInt(int?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = sizeof(int);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr intBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                //set TAOS_MULTI_BIND.buffer
+                Marshal.WriteInt32(intBuff, typeSize * i, arr[i] ?? int.MinValue);
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+
+            }
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_INT;
+            multiBind.buffer = intBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindBigint(long?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = sizeof(long);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr intBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                //set TAOS_MULTI_BIND.buffer
+                Marshal.WriteInt64(intBuff, typeSize * i, arr[i] ?? long.MinValue);
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+
+
+            }
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BIGINT;
+            multiBind.buffer = intBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindFloat(float?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = sizeof(float);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+            //used to replace null 
+            float[] arrTmp = new float[elementCount];
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr floatBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                arrTmp[i] = arr[i] ?? float.MinValue;
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+            }
+            //set TAOS_MULTI_BIND.buffer
+            Marshal.Copy(arrTmp, 0, floatBuff, elementCount);
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_FLOAT;
+            multiBind.buffer = floatBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindDouble(double?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = sizeof(double);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+            //used to replace null 
+            double[] arrTmp = new double[elementCount];
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr doubleBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                arrTmp[i] = arr[i] ?? double.MinValue;
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+            }
+            //set TAOS_MULTI_BIND.buffer
+            Marshal.Copy(arrTmp, 0, doubleBuff, elementCount);
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_DOUBLE;
+            multiBind.buffer = doubleBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindUTinyInt(byte?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = sizeof(byte);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+            //used to replace null 
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr uTinyIntBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                //set TAOS_MULTI_BIND.buffer
+                Marshal.WriteByte(uTinyIntBuff, typeSize * i, arr[i] ?? byte.MaxValue);
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+            }
+
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UTINYINT;
+            multiBind.buffer = uTinyIntBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindUSmallInt(ushort?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = sizeof(ushort);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+            //used to replace null 
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr uSmallIntBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                byte[] byteArr = BitConverter.GetBytes(arr[i] ?? ushort.MaxValue);
+                for (int j = 0; j < byteArr.Length; j++)
+                {
+                    //set TAOS_MULTI_BIND.buffer
+                    Marshal.WriteByte(uSmallIntBuff, typeSize * i + j * byteSize, byteArr[j]);
+                }
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+            }
+
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_USMALLINT;
+            multiBind.buffer = uSmallIntBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindUInt(uint?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = sizeof(uint);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+            //used to replace null 
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr uIntBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                byte[] byteArr = BitConverter.GetBytes(arr[i] ?? uint.MaxValue);
+                for (int j = 0; j < byteArr.Length; j++)
+                {
+                    //set TAOS_MULTI_BIND.buffer
+                    Marshal.WriteByte(uIntBuff, typeSize * i + j * byteSize, byteArr[j]);
+                }
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+            }
+
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UINT;
+            multiBind.buffer = uIntBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindUBigInt(ulong?[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = sizeof(ulong);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+            //used to replace null 
+
+            //TAOS_MULTI_BIND.buffer
+            IntPtr uBigIntBuff = Marshal.AllocHGlobal(typeSize * elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                byte[] byteArr = BitConverter.GetBytes(arr[i] ?? ulong.MaxValue);
+                for (int j = 0; j < byteArr.Length; j++)
+                {
+                    //set TAOS_MULTI_BIND.buffer
+                    Marshal.WriteByte(uBigIntBuff, typeSize * i + j * byteSize, byteArr[j]);
+                }
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(arr[i].Equals(null) ? 1 : 0));
+            }
+
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_UBIGINT;
+            multiBind.buffer = uBigIntBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+        public static TAOS_MULTI_BIND MultiBindBinary(string[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = MaxElementLength(arr);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+            StringBuilder arrStrBuilder = new StringBuilder(); ;
+
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                int itemLength = 0;
+                byte[] decodeByte = GetStringEncodeByte(arr[i]);
+                itemLength = decodeByte.Length;
+                // if element if not null and element length is less then typeSize
+                // fill the memory with default char.Since arr element memory need align.
+                if (!String.IsNullOrEmpty(arr[i]) && typeSize == itemLength)
+                {
+                    arrStrBuilder.Append(arr[i]);
+                }
+                else if (!String.IsNullOrEmpty(arr[i]) && typeSize > itemLength)
+                {
+                    arrStrBuilder.Append(arr[i]);
+                    arrStrBuilder.Append(AlignCharArr(typeSize - itemLength));
+                }
+                else
+                {
+                    // if is null value,fill the memory with default values.
+                    arrStrBuilder.Append(AlignCharArr(typeSize));
+                }
+
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null 
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(String.IsNullOrEmpty(arr[i]) ? 1 : 0));
+            }
+            //set TAOS_MULTI_BIND.buffer
+            IntPtr uBinaryBuff = (IntPtr)Marshal.StringToHGlobalAnsi(arrStrBuilder.ToString());
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_BINARY;
+            multiBind.buffer = uBinaryBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+
+        public static TAOS_MULTI_BIND MultiBindNchar(string[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = MaxElementLength(arr);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+            StringBuilder arrStrBuilder = new StringBuilder(); ;
+
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                int itemLength = 0;
+                byte[] decodeByte = GetStringEncodeByte(arr[i]);
+                itemLength = decodeByte.Length;
+                // if element if not null and element length is less then typeSize
+                // fill the memory with default char.Since arr element memory need align.
+                if (!String.IsNullOrEmpty(arr[i]) && typeSize == itemLength)
+                {
+                    arrStrBuilder.Append(arr[i]);
+                }
+                else if (!String.IsNullOrEmpty(arr[i]) && typeSize > itemLength)
+                {
+                    arrStrBuilder.Append(arr[i]);
+                    arrStrBuilder.Append(AlignCharArr(typeSize - itemLength));
+                }
+                else
+                {
+                    // if is null value,fill the memory with default values.
+                    arrStrBuilder.Append(AlignCharArr(typeSize));
+                }
+
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null 
+                Marshal.WriteByte(nullArr, byteSize * i, Convert.ToByte(String.IsNullOrEmpty(arr[i]) ? 1 : 0));
+            }
+            //set TAOS_MULTI_BIND.buffer
+            IntPtr uNcharBuff = (IntPtr)Marshal.StringToHGlobalAnsi(arrStrBuilder.ToString());
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_NCHAR;
+            multiBind.buffer = uNcharBuff;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+
+        public static TAOS_MULTI_BIND MultiBindTimestamp(long[] arr)
+        {
+            TAOS_MULTI_BIND multiBind = new TAOS_MULTI_BIND();
+            int elementCount = arr.Length;
+            int typeSize = sizeof(long);
+            int intSize = sizeof(int);
+            int byteSize = sizeof(byte);
+            //TAOS_MULTI_BIND.buffer
+            IntPtr unmanagedTsArr = Marshal.AllocHGlobal(typeSize * elementCount);
+            //TAOS_MULTI_BIND.length
+            IntPtr lengthArr = Marshal.AllocHGlobal(intSize * elementCount);
+            //TAOS_MULTI_BIND.is_null
+            IntPtr nullArr = Marshal.AllocHGlobal(byteSize * elementCount);
+
+            for (int i = 0; i < elementCount; i++)
+            {
+                //set TAOS_MULTI_BIND.buffer
+                Marshal.WriteInt64(unmanagedTsArr, typeSize * i, arr[i]);
+                //set TAOS_MULTI_BIND.length
+                Marshal.WriteInt32(lengthArr, intSize * i, typeSize);
+                //set TAOS_MULTI_BIND.is_null
+                Marshal.WriteByte(nullArr, byteSize * i, 0);
+            }
+
+            //config TAOS_MULTI_BIND
+            multiBind.buffer_type = (int)TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP;
+            multiBind.buffer = unmanagedTsArr;
+            multiBind.buffer_length = (ulong)typeSize;
+            multiBind.length = lengthArr;
+            multiBind.is_null = nullArr;
+            multiBind.num = elementCount;
+
+            return multiBind;
+        }
+
+        public static void FreeTaosBind(TAOS_MULTI_BIND[] mBinds)
+        {
+            foreach (TAOS_MULTI_BIND bind in mBinds)
+            {
+                Marshal.FreeHGlobal(bind.buffer);
+                Marshal.FreeHGlobal(bind.length);
+                Marshal.FreeHGlobal(bind.is_null);
+            }
+        }
+
+        private static char[] AlignCharArr(int offSet)
+        {
+            char[] alignChar = new char[offSet];
+            for (int i = 0; i < offSet; i++)
+            {
+                alignChar[i] = char.MinValue;
+            }
+            return alignChar;
+        }
+
+        private static int MaxElementLength(String[] strArr)
+        {
+            int max = 0;
+            for (int i = 0; i < strArr.Length; i++)
+            {
+                int tmpLength = GetStringEncodeByte(strArr[i]).Length;
+                if (!String.IsNullOrEmpty(strArr[i]) && max < tmpLength)
+                {
+                    max = tmpLength;
+                }
+            }
+            return max;
+        }
+
+        private static Byte[] GetStringEncodeByte(string str)
+        {   
+            Byte[] strToBytes = null;
+            if(String.IsNullOrEmpty(str))
+            {
+                strToBytes = System.Text.Encoding.Default.GetBytes(String.Empty);
+            }
+            else
+            {
+                strToBytes = System.Text.Encoding.Default.GetBytes(str);
+            } 
+            return strToBytes;
+        }
+    }
+
+}
\ No newline at end of file

tests/system-test/3-connectors/c#/stmtfunction/stmtfunction.cs

+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+using System;
+using System.Text;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using System.Collections;
+namespace TDengineDriver
+{
+    public class stmtfunction
+    {
+        //connection parameters
+        private string host = "127.0.0.1";
+        private string configDir = "/etc/taos";
+        private string user = "root";
+        private string passwd = "taosdata";
+        private short port = 6030;
+
+        private IntPtr conn = IntPtr.Zero;
+        private IntPtr stmt = IntPtr.Zero;
+
+        //prepare the tags value
+        //Integer
+        public TAOS_BIND[] InitBindArr1()
+        {
+            TAOS_BIND[] binds = new TAOS_BIND[4];
+
+            binds[0] = TaosBind.BindTinyInt(-2);
+            binds[1] = TaosBind.BindSmallInt(short.MaxValue);
+            binds[2] = TaosBind.BindInt(int.MaxValue);
+            binds[3] = TaosBind.BindBigInt(Int64.MaxValue);
+
+            return binds;
+        }
+
+        //unsigned Integer
+        public TAOS_BIND[] InitBindArr2()
+        {
+            TAOS_BIND[] binds = new TAOS_BIND[4];
+
+            binds[0] = TaosBind.BindUTinyInt(byte.MaxValue - 1);
+            binds[1] = TaosBind.BindUSmallInt(UInt16.MaxValue - 1);
+            binds[2] = TaosBind.BindUInt(uint.MinValue + 1);
+            binds[3] = TaosBind.BindUBigInt(UInt64.MinValue + 1);
+
+            return binds;
+        }
+
+        //float and double
+        public TAOS_BIND[] InitBindArr3()
+        {
+            TAOS_BIND[] binds = new TAOS_BIND[6];
+
+            binds[0] = TaosBind.BindFloat(11.11F);
+            binds[1] = TaosBind.BindFloat(float.MinValue+1);
+            binds[2] = TaosBind.BindFloat(float.MaxValue-1);
+            binds[3] = TaosBind.BindDouble(22.22D);
+            binds[4] = TaosBind.BindDouble(double.MinValue+1);
+            binds[5] = TaosBind.BindDouble(double.MaxValue-1);
+
+
+            return binds;
+        }
+
+        //binary and nchar
+        public TAOS_BIND[] InitBindArr4()
+        {
+            TAOS_BIND[] binds = new TAOS_BIND[2];
+            string a = "abcdABCD123`~!@#$%^&*()-=+_[]{}:;\",.<>/?\\\\'";
+            string b = "abcdABCD123`~!@#$%^&*()-=+_[]{}:;\",.<>/?taos涛思";
+
+            //Console.WriteLine(a);
+            //Console.WriteLine(b);
+            binds[0] = TaosBind.BindBinary(a);
+            binds[1] = TaosBind.BindNchar(b);
+
+            return binds;
+        }
+
+        //prepare the column values
+        //Integer
+        public TAOS_MULTI_BIND[] InitMultBindArr1()
+        {
+            TAOS_MULTI_BIND[] mBinds = new TAOS_MULTI_BIND[5];
+            long[] tsArr = new long[5] { 1637064040000, 1637064041000, 1637064042000, 1637064043000, 1637064044000 };
+            sbyte?[] tinyIntArr = new sbyte?[5] { -127, 0, null, 8, 127 };
+            short?[] shortArr = new short?[5] { short.MinValue + 1, -200, null, 100, short.MaxValue };
+            int?[] intArr = new int?[5] { -200, -100, null, 0, 300 };
+            long?[] longArr = new long?[5] { long.MinValue + 1, -2000, null, 1000, long.MaxValue };
+
+            mBinds[0] = TaosMultiBind.MultiBindTimestamp(tsArr);
+            mBinds[1] = TaosMultiBind.MultiBindTinyInt(tinyIntArr);
+            mBinds[2] = TaosMultiBind.MultiBindSmallInt(shortArr);
+            mBinds[3] = TaosMultiBind.MultiBindInt(intArr);
+            mBinds[4] = TaosMultiBind.MultiBindBigint(longArr);
+
+            return mBinds;
+        }
+        //Unsigned Integer
+        public TAOS_MULTI_BIND[] InitMultBindArr2()
+        {
+            TAOS_MULTI_BIND[] mBinds = new TAOS_MULTI_BIND[5];
+            long[] tsArr = new long[5] { 1637064040000, 1637064041000, 1637064042000, 1637064043000, 1637064044000 };
+            byte?[] uTinyIntArr = new byte?[5] { byte.MinValue, 0, null, 89, byte.MaxValue - 1 };
+            ushort?[] uShortArr = new ushort?[5] { ushort.MinValue, 0, null, 400, ushort.MaxValue - 1 };
+            uint?[] uIntArr = new uint?[5] { uint.MinValue, 0, null, 2001, uint.MaxValue - 1 };
+            ulong?[] uLongArr = new ulong?[5] { ulong.MinValue, 0, null, 1000, long.MaxValue - 1 };
+
+            mBinds[0] = TaosMultiBind.MultiBindTimestamp(tsArr);
+            mBinds[1] = TaosMultiBind.MultiBindUTinyInt(uTinyIntArr);
+            mBinds[2] = TaosMultiBind.MultiBindUSmallInt(uShortArr);
+            mBinds[3] = TaosMultiBind.MultiBindUInt(uIntArr);
+            mBinds[4] = TaosMultiBind.MultiBindUBigInt(uLongArr);
+
+            return mBinds;
+        }
+        //float and double
+        public TAOS_MULTI_BIND[] InitMultBindArr3()
+        {
+            TAOS_MULTI_BIND[] mBinds = new TAOS_MULTI_BIND[3];
+            long[] tsArr = new long[5] { 1637064040000, 1637064041000, 1637064042000, 1637064043000, 1637064044000 };
+            float?[] floatArr = new float?[5] { float.MinValue + 1, -12.1F, null, 0F, float.MaxValue };
+            double?[] doubleArr = new double?[5] { double.MinValue + 1, -19.112D, null, 0D, double.MaxValue };
+
+            mBinds[0] = TaosMultiBind.MultiBindTimestamp(tsArr);
+            mBinds[1] = TaosMultiBind.MultiBindFloat(floatArr);
+            mBinds[2] = TaosMultiBind.MultiBindDouble(doubleArr);
+            
+
+            return mBinds;
+        }
+        //binary and nchar
+        public TAOS_MULTI_BIND[] InitMultBindArr4()
+        {
+            TAOS_MULTI_BIND[] mBinds = new TAOS_MULTI_BIND[3];
+            long[] tsArr = new long[3] { 1637064040000, 1637064041000, 1637064042000};
+            string[] binaryArr = new string[3] { "abcdABCD123`~!@#$%^&*()-=+_[]{}:;\",.<>/?", String.Empty, null};
+            string[] ncharArr = new string[3] { "abcdABCD123`~!@#$%^&*()-=+_[]{}:;\",.<>/?涛思", null, string.Empty };
+
+            mBinds[0] = TaosMultiBind.MultiBindTimestamp(tsArr);
+            mBinds[1] = TaosMultiBind.MultiBindBinary(binaryArr);
+            mBinds[2] = TaosMultiBind.MultiBindNchar(ncharArr);
+
+            return mBinds;
+        }
+
+        static void Main(string[] args)
+        {
+            stmtfunction test = new stmtfunction();
+            Console.WriteLine("---------------------------------------------------------------");
+            Console.WriteLine("Start Stmtfunction case1 insert  Testing...");
+            Console.WriteLine("---------------------------------------------------------------");
+            //Init and connect TDengine
+            test.InitTDengine();
+            test.ConnectTDengine();
+            //create database
+            test.executeQuery("drop database  if exists csharptest");
+            test.executeQuery("create database if not exists csharptest ");
+            test.executeQuery("use csharptest");
+            test.executeQuery("drop table  if exists stmttest");
+            //case1:tinyint,smallint,int,bigint
+            string createTable1 = "create stable stmttest1 (ts timestamp,c1 tinyint,c2 smallint,c3 int,c4 bigint) tags(t1 tinyint,t2 smallint,t3 int,t4 bigint)";
+            test.executeQuery(createTable1);
+            test.StmtInit();
+            test.StmtPrepare("insert into ? using stmttest1 tags(?,?,?,?) values(?,?,?,?,?)");
+            TAOS_BIND[] Ibinds = test.InitBindArr1();
+            TAOS_MULTI_BIND[] Imbinds = test.InitMultBindArr1();
+            test.SetTableNameTags("t1",Ibinds);
+            test.BindParamBatch(Imbinds);
+            test.AddBatch();
+            test.StmtExecute();
+            TaosBind.FreeTaosBind(Ibinds);
+            TaosMultiBind.FreeTaosBind(Imbinds);
+            test.StmtClose();
+            //select
+            Console.WriteLine("---------------------------------------------------------------");
+            Console.WriteLine("start Stmtfunction case1 select Testing...");
+            Console.WriteLine("---------------------------------------------------------------");
+            test.StmtInit();
+            test.StmtPrepare("select * from t1 where c1>? and c2 >?");
+            TAOS_BIND[] queryCondition1 = new TAOS_BIND[2];
+            queryCondition1[0] = TaosBind.BindTinyInt(0);
+            queryCondition1[1] = TaosBind.BindInt(100);
+            test.BindParam(queryCondition1);
+            test.StmtExecute();
+            test.StmtUseResult();
+            test.StmtClose();
+            TaosBind.FreeTaosBind(queryCondition1);
+            Console.WriteLine("---------------------------------------------------------------");
+            Console.WriteLine("Stop Stmtfunction case1 Testing...");
+            Console.WriteLine("---------------------------------------------------------------");
+
+            // //case2:utinyint,usmallint,uint,ubigint
+            string createTable2 = "create stable stmttest2 (ts timestamp,c1 tinyint unsigned,c2 smallint unsigned,c3 int unsigned,c4 bigint unsigned)"
+                                    +" tags(t1 tinyint unsigned,t2 smallint unsigned,t3 int unsigned,t4 bigint unsigned)";
+            test.executeQuery(createTable2);
+            test.StmtInit();
+            test.StmtPrepare("insert into ? using stmttest2 tags(?,?,?,?) values(?,?,?,?,?)");
+            TAOS_BIND[] Ubinds = test.InitBindArr2();
+            TAOS_MULTI_BIND[] Umbinds = test.InitMultBindArr2();
+            test.SetTableNameTags("t2",Ubinds);
+            test.BindParamBatch(Umbinds);
+            test.AddBatch();
+            test.StmtExecute();
+            TaosBind.FreeTaosBind(Ubinds);
+            TaosMultiBind.FreeTaosBind(Umbinds);
+            test.StmtClose();
+            //select
+            Console.WriteLine("---------------------------------------------------------------");
+            Console.WriteLine("start Stmtfunction case2 select Testing...");
+            Console.WriteLine("---------------------------------------------------------------");
+            test.StmtInit();
+            test.StmtPrepare("select * from t2 where c1>? and c3 >?");
+            TAOS_BIND[] queryCondition2 = new TAOS_BIND[2];
+            queryCondition2[0] = TaosBind.BindUTinyInt(80);
+            queryCondition2[1] = TaosBind.BindUInt(1000);
+            test.BindParam(queryCondition2);
+            test.StmtExecute();
+            test.StmtUseResult();
+            test.StmtClose();
+            TaosBind.FreeTaosBind(queryCondition2);
+            Console.WriteLine("---------------------------------------------------------------");
+            Console.WriteLine("Stop Stmtfunction case2 Testing...");
+            Console.WriteLine("---------------------------------------------------------------");
+
+
+            // //case3:float,double
+            string createTable3 = "create stable stmttest3 (ts timestamp,c1 float,c2 double)"
+                                    +" tags(t1 float,t2 float,t3 float,t4 double,t5 double,t6 double)";
+            test.executeQuery(createTable3);
+            test.StmtInit();
+            test.StmtPrepare("insert into ? using stmttest3 tags(?,?,?,?,?,?) values(?,?,?)");
+            TAOS_BIND[] fdbinds = test.InitBindArr3();
+            TAOS_MULTI_BIND[] fdmbinds = test.InitMultBindArr3();
+            test.SetTableNameTags("t3",fdbinds);
+            test.BindParamBatch(fdmbinds);
+            test.AddBatch();
+            test.StmtExecute();
+            TaosBind.FreeTaosBind(fdbinds);
+            TaosMultiBind.FreeTaosBind(fdmbinds);
+            test.StmtClose();
+            //select
+            Console.WriteLine("---------------------------------------------------------------");
+            Console.WriteLine("start Stmtfunction case3 select Testing...");
+            Console.WriteLine("---------------------------------------------------------------");
+            test.StmtInit();
+            test.StmtPrepare("select * from t3 where c1>? and c2 >?");
+            TAOS_BIND[] queryCondition3 = new TAOS_BIND[2];
+            queryCondition3[0] = TaosBind.BindFloat(80);
+            queryCondition3[1] = TaosBind.BindDouble(1000);
+            test.BindParam(queryCondition3);
+            test.StmtExecute();
+            test.StmtUseResult();
+            test.StmtClose();
+            TaosBind.FreeTaosBind(queryCondition3);
+            Console.WriteLine("---------------------------------------------------------------");
+            Console.WriteLine("Stop Stmtfunction case3 Testing...");
+            Console.WriteLine("---------------------------------------------------------------");
+            
+
+            //case4:binary,nchar
+            string createTable4 = "create stable stmttest4 (ts timestamp,c1 binary(50),c2 nchar(50))tags(t1 binary(50),t2 nchar(50))";
+            //Console.WriteLine(createTable4);
+            test.executeQuery(createTable4);
+            test.StmtInit();
+            test.StmtPrepare("insert into ? using stmttest4 tags(?,?) values(?,?,?)");
+            TAOS_BIND[] bnbinds = test.InitBindArr4();
+            TAOS_MULTI_BIND[] bnmbinds = test.InitMultBindArr4();
+            test.SetTableNameTags("t4",bnbinds);
+            test.BindParamBatch(bnmbinds);
+            test.AddBatch();
+            test.StmtExecute();
+            TaosBind.FreeTaosBind(bnbinds);
+            TaosMultiBind.FreeTaosBind(bnmbinds);
+            test.StmtClose();
+            //select
+            Console.WriteLine("---------------------------------------------------------------");
+            Console.WriteLine("start Stmtfunction case4 select Testing...");
+            Console.WriteLine("---------------------------------------------------------------");
+            test.StmtInit();
+            test.StmtPrepare("select * from t4 where c1 match ?");
+            TAOS_BIND[] queryCondition4 = new TAOS_BIND[1];
+            queryCondition4[0] = TaosBind.BindBinary("\"^a\"");
+            
+            test.BindParam(queryCondition4);
+            test.StmtExecute();
+            test.StmtUseResult();
+            test.StmtClose();
+            TaosBind.FreeTaosBind(queryCondition4);
+            Console.WriteLine("---------------------------------------------------------------");
+            Console.WriteLine("Stop Stmtfunction case4 Testing...");
+            Console.WriteLine("---------------------------------------------------------------");
+            test.CloseConnection();
+
+            ExitProgram();
+
+        }
+
+        //Start here are the framework functions
+        public void InitTDengine()
+        {
+            TDengine.Options((int)TDengineInitOption.TDDB_OPTION_CONFIGDIR, this.configDir);
+            TDengine.Options((int)TDengineInitOption.TDDB_OPTION_SHELL_ACTIVITY_TIMER, "60");
+            Console.WriteLine("init...");
+            TDengine.Init();
+            Console.WriteLine("get connection starting...");
+        }
+
+        public void ConnectTDengine()
+        {
+            string db = "";
+            this.conn = TDengine.Connect(host, this.user, this.passwd, db, this.port);
+            if (this.conn == IntPtr.Zero)
+            {
+                Console.WriteLine("connection failed: " + this.host);
+                ExitProgramFailed();
+            }
+            else
+            {
+                Console.WriteLine("[ OK ] Connection established.");
+            }
+        }
+        public void StmtInit()
+        {
+            this.stmt = TDengine.StmtInit(conn);
+            if (this.stmt == IntPtr.Zero)
+            {
+                Console.WriteLine("Init stmt failed");
+                ExitProgramFailed();
+            }
+            else
+            {
+                Console.WriteLine("Init stmt success");
+            }
+        }
+        public void StmtPrepare(string sql)
+        {
+            int res = TDengine.StmtPrepare(this.stmt, sql);
+            if (res == 0)
+            {
+                Console.WriteLine("stmt prepare success");
+            }
+            else
+            {
+                Console.WriteLine("stmt prepare failed " + TDengine.StmtErrorStr(stmt));
+                ExitProgramFailed();
+            }
+        }
+        public void SetTableName(String tableName)
+        {
+            int res = TDengine.StmtSetTbname(this.stmt, tableName);
+            Console.WriteLine("setTableName():" + res);
+            if (res == 0)
+            {
+                Console.WriteLine("set_tbname success");
+            }
+            else
+            {
+                Console.Write("set_tbname failed, " + TDengine.StmtErrorStr(stmt));
+                StmtClose();
+                ExitProgramFailed();
+            }
+        }
+        public void executeQuery(String sql)
+        {
+            IntPtr res = TDengine.Query(conn, sql);
+            if ((res == IntPtr.Zero) || (TDengine.ErrorNo(res) != 0))
+            {
+                Console.Write(sql.ToString() + " failure, ");
+                if (res != IntPtr.Zero)
+                {
+                    Console.Write("reason: " + TDengine.Error(res));
+                }
+                Console.WriteLine("");
+                ExitProgramFailed();
+            }
+            else
+            {
+                Console.WriteLine(sql.ToString() + " success");
+            }
+            TDengine.FreeResult(res);
+        }
+        public void SetTableNameTags(String tableName, TAOS_BIND[] tags)
+        {
+            int res = TDengine.StmtSetTbnameTags(this.stmt, tableName, tags);
+            if (res == 0)
+            {
+                Console.WriteLine("set tbname && tags success");
+
+            }
+            else
+            {
+                Console.Write("set tbname && tags failed, " + TDengine.StmtErrorStr(stmt));
+                StmtClose();
+                ExitProgramFailed();
+            }
+        }
+        public void SetSubTableName(string name)
+        {
+            int res = TDengine.StmtSetSubTbname(this.stmt, name);
+            if (res == 0)
+            {
+                Console.WriteLine("set subtable name success");
+            }
+            else
+            {
+                Console.Write("set subtable name failed, " + TDengine.StmtErrorStr(stmt));
+                StmtClose();
+                ExitProgramFailed();
+            }
+
+        }
+
+        public void BindParam(TAOS_BIND[] binds)
+        {
+            Console.WriteLine("in bindParam()");
+
+            int res = TDengine.StmtBindParam(this.stmt, binds);
+            if (res == 0)
+            {
+                Console.WriteLine("bind  para success");
+            }
+            else
+            {
+                Console.Write("bind  para failed, " + TDengine.StmtErrorStr(stmt));
+                StmtClose();
+                ExitProgramFailed();
+            }
+        }
+
+        public void BindSingleParamBatch(TAOS_MULTI_BIND bind, int index)
+        {
+            int res = TDengine.StmtBindSingleParamBatch(this.stmt,ref bind, index);
+            if (res == 0)
+            {
+                Console.WriteLine("single bind  batch success");
+            }
+            else
+            {
+                Console.Write("single bind  batch failed: " + TDengine.StmtErrorStr(stmt));
+                StmtClose();
+                ExitProgramFailed();
+            }
+        }
+
+        public void BindParamBatch(TAOS_MULTI_BIND[] bind)
+        {
+            int res = TDengine.StmtBindParamBatch(this.stmt, bind);
+            if (res == 0)
+            {
+                Console.WriteLine("bind  parameter batch success");
+            }
+            else
+            {
+                Console.WriteLine("bind  parameter batch failed, " + TDengine.StmtErrorStr(stmt));
+                StmtClose();
+                ExitProgramFailed();
+            }
+        }
+
+        public void AddBatch()
+        {
+            int res = TDengine.StmtAddBatch(this.stmt);
+            if (res == 0)
+            {
+                Console.WriteLine("stmt add batch success");
+            }
+            else
+            {
+                Console.Write("stmt add batch failed,reason: " + TDengine.StmtErrorStr(stmt));
+                StmtClose();
+                ExitProgramFailed();
+            }
+        }
+        public void StmtExecute()
+        {
+            int res = TDengine.StmtExecute(this.stmt);
+            if (res == 0)
+            {
+                Console.WriteLine("Execute stmt success");
+            }
+            else
+            {
+                Console.Write("Execute stmt failed,reason: " + TDengine.StmtErrorStr(stmt));
+                StmtClose();
+                ExitProgramFailed();
+            }
+        }
+        public void StmtClose()
+        {
+            int res = TDengine.StmtClose(this.stmt);
+            if (res == 0)
+            {
+                Console.WriteLine("close stmt success");
+            }
+            else
+            {
+                Console.WriteLine("close stmt failed, " + TDengine.StmtErrorStr(stmt));
+                StmtClose();
+                ExitProgramFailed();
+            }
+        }
+        public void CloseConnection()
+        {
+            if (this.conn != IntPtr.Zero)
+            {
+                if (TDengine.Close(this.conn) == 0)
+                {
+                    Console.WriteLine("close connection sucess");
+                }
+                else
+                {
+                    Console.WriteLine("close Connection failed");
+                    ExitProgramFailed();
+                }
+            }
+        }
+
+        //select only
+        public void StmtUseResult()
+        {
+            IntPtr res = TDengine.StmtUseResult(this.stmt);
+            if ((res == IntPtr.Zero) || (TDengine.ErrorNo(res) != 0))
+            {
+                if (res != IntPtr.Zero)
+                {
+                    Console.Write("reason: " + TDengine.Error(res));
+                }
+                Console.WriteLine("");
+                StmtClose();
+                CloseConnection();
+                ExitProgramFailed();
+            }
+            else
+            {
+                Console.WriteLine("{0},query success");
+                DisplayRes(res);
+                TDengine.FreeResult(res);
+            }
+
+        }
+
+        public void DisplayRes(IntPtr res)
+        {
+
+            long queryRows = 0;
+            if ((res == IntPtr.Zero) || (TDengine.ErrorNo(res) != 0))
+            {
+                if (res != IntPtr.Zero)
+                {
+                    Console.Write("reason: " + TDengine.Error(res));
+                }
+                Console.WriteLine("");
+                ExitProgramFailed();
+            }
+
+            int fieldCount = TDengine.FieldCount(res);
+            List<TDengineMeta> metas = TDengine.FetchFields(res);
+            for (int j = 0; j < metas.Count; j++)
+            {
+                TDengineMeta meta = (TDengineMeta)metas[j];
+            }
+
+            IntPtr rowdata;
+            StringBuilder builder = new StringBuilder();
+            while ((rowdata = TDengine.FetchRows(res)) != IntPtr.Zero)
+            {
+                queryRows++;
+                for (int fields = 0; fields < fieldCount; ++fields)
+                {
+                    TDengineMeta meta = metas[fields];
+                    int offset = IntPtr.Size * fields;
+                    IntPtr data = Marshal.ReadIntPtr(rowdata, offset);
+
+                    builder.Append("---");
+
+                    if (data == IntPtr.Zero)
+                    {
+                        builder.Append("NULL");
+                        continue;
+                    }
+
+                    switch ((TDengineDataType)meta.type)
+                    {
+                        case TDengineDataType.TSDB_DATA_TYPE_BOOL:
+                            bool v1 = Marshal.ReadByte(data) == 0 ? false : true;
+                            builder.Append(v1);
+                            break;
+                        case TDengineDataType.TSDB_DATA_TYPE_TINYINT:
+                            byte v2 = Marshal.ReadByte(data);
+                            builder.Append(v2);
+                            break;
+                        case TDengineDataType.TSDB_DATA_TYPE_SMALLINT:
+                            short v3 = Marshal.ReadInt16(data);
+                            builder.Append(v3);
+                            break;
+                        case TDengineDataType.TSDB_DATA_TYPE_INT:
+                            int v4 = Marshal.ReadInt32(data);
+                            builder.Append(v4);
+                            break;
+                        case TDengineDataType.TSDB_DATA_TYPE_BIGINT:
+                            long v5 = Marshal.ReadInt64(data);
+                            builder.Append(v5);
+                            break;
+                        case TDengineDataType.TSDB_DATA_TYPE_FLOAT:
+                            float v6 = (float)Marshal.PtrToStructure(data, typeof(float));
+                            builder.Append(v6);
+                            break;
+                        case TDengineDataType.TSDB_DATA_TYPE_DOUBLE:
+                            double v7 = (double)Marshal.PtrToStructure(data, typeof(double));
+                            builder.Append(v7);
+                            break;
+                        case TDengineDataType.TSDB_DATA_TYPE_BINARY:
+                            string v8 = Marshal.PtrToStringAnsi(data);
+                            builder.Append(v8);
+                            break;
+                        case TDengineDataType.TSDB_DATA_TYPE_TIMESTAMP:
+                            long v9 = Marshal.ReadInt64(data);
+                            builder.Append(v9);
+                            break;
+                        case TDengineDataType.TSDB_DATA_TYPE_NCHAR:
+                            string v10 = Marshal.PtrToStringAnsi(data);
+                            builder.Append(v10);
+                            break;
+                    }
+                }
+                builder.Append("---");
+
+                if (queryRows <= 10)
+                {
+                    Console.WriteLine(builder.ToString());
+                }
+                builder.Clear();
+            }
+
+            if (TDengine.ErrorNo(res) != 0)
+            {
+                Console.Write("Query is not complete, Error {0:G}", TDengine.ErrorNo(res), TDengine.Error(res));
+            }
+            Console.WriteLine("");
+
+        }
+        public static void ExitProgram()
+        {
+            TDengine.Cleanup();
+            System.Environment.Exit(0);
+        }
+        public static void ExitProgramFailed()
+        {
+            TDengine.Cleanup();
+            System.Environment.Exit(1);
+        }
+    }
+
+
+}

tests/system-test/3-connectors/c#/stmtfunction/stmtfunction.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\TDengineDriver\TDengineDriver.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net5.0</TargetFramework>
+    <!-- <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable> -->
+  </PropertyGroup>
+
+</Project>

tests/system-test/3-connectors/c#/test.sh

@@ -26,6 +26,9 @@ dotnet run --project C#checker/C#checker.csproj
 dotnet run --project TDengineTest/TDengineTest.csproj
 dotnet run --project schemaless/schemaless.csproj
 
+cd ${WKC}/tests/system-test/3-connectors/c#/stmtfunction
+dotnet run || exit 1
+
 cd ${WKC}/tests/examples/C#/taosdemo
 dotnet build -c Release
 tree | true

tests/system-test/3-connectors/go/test.sh

@@ -17,4 +17,3 @@ nohup taosd -c /etc/taos/ > /dev/null 2>&1 &
 sleep 10
 cd ../../
 WKC=`pwd`
-

tests/system-test/5-taos-tools/dump_col_tag.py

+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+import time
+import os
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+
+
+class TDTestCase:
+    def caseDescription(self):
+        '''
+        case1<xyguo>:[TD-10540]The escape char "`" can be used for both tag name and column name 
+        case2<xyguo>:[TD-12435]create table as cause column error;
+        ''' 
+        return
+
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+        now = time.time()
+        self.ts = int(round(now * 1000))
+
+    def table1_checkall(self,sql):
+        tdLog.info(sql)       
+        tdSql.query(sql)
+        tdSql.checkData(0,1,1)
+        tdSql.checkData(0,2,2)
+        tdSql.checkData(0,3,3)
+        tdSql.checkData(0,4,4)
+        tdSql.checkData(0,5,'True')
+        tdSql.checkData(0,6,6)
+        tdSql.checkData(0,7,7)
+        tdSql.checkData(0,8,8)
+        tdSql.checkData(0,9,9)
+        tdSql.checkData(0,10,'1970-01-01 08:00:00.010')
+    
+    def table1_checkall_1(self,sql):
+        tdSql.query(sql)
+        tdSql.checkData(0,1,1)
+
+    def table1_checkall_2(self,sql):
+        self.table1_checkall_1(sql)
+        tdSql.checkData(0,2,2)
+
+    def table1_checkall_3(self,sql):
+        self.table1_checkall_2(sql)
+        tdSql.checkData(0,3,3)
+
+    def table1_checkall_4(self,sql):
+        self.table1_checkall_3(sql)
+        tdSql.checkData(0,4,4)
+
+    def table1_checkall_5(self,sql):
+        self.table1_checkall_4(sql)
+        tdSql.checkData(0,5,'True')
+
+    def table1_checkall_6(self,sql):
+        self.table1_checkall_5(sql)
+        tdSql.checkData(0,6,6)
+
+    def table1_checkall_7(self,sql):
+        self.table1_checkall_6(sql)
+        tdSql.checkData(0,7,7)
+
+    def table1_checkall_8(self,sql):
+        self.table1_checkall_7(sql)
+        tdSql.checkData(0,8,8)
+
+    def table1_checkall_9(self,sql):
+        self.table1_checkall_8(sql)
+        tdSql.checkData(0,9,9)
+
+    def table1_checkall_10(self,sql):
+        self.table1_checkall_9(sql)
+        tdSql.checkData(0,10,'1970-01-01 08:00:00.010')
+
+    def run(self):
+
+        testcaseFilename = os.path.split(__file__)[-1]
+        os.system("rm -rf 5-taos-tools/%s.sql" % testcaseFilename ) 
+        os.system("rm db*")
+        os.system("rm dump_result.txt*")
+        tdSql.prepare()
+
+        print("==============step1")
+        print("prepare data")
+       
+        tdSql.execute("create database db2")
+        tdSql.execute("use db2")
+        
+        print("==============new version [escape character] for stable==============")
+        print("==============step1,#create db.stable,db.table; insert db.table; show db.table; select db.table; drop db.table;")
+        print("prepare data")
+        
+        self.stb1 = "stable_1~!@#$%^&*()-_+=[]{}':,<.>/?stST13579"
+        self.tb1 = "table_1~!@#$%^&*()-_+=[]{}':,<.>/?stST13579"
+
+        self.col_base = "123~!@#$%^&*()-_+=[]{}':,<.>/?stST13579"
+
+        self.col_int = "stable_col_int%s" %self.col_base
+        print(self.col_int)
+        self.col_bigint = "stable_col_bigint%s" %self.col_base
+        self.col_smallint = "stable_col_smallint%s" %self.col_base
+        self.col_tinyint = "stable_col_tinyint%s" %self.col_base
+        self.col_bool = "stable_col_bool%s" %self.col_base
+        self.col_binary = "stable_col_binary%s" %self.col_base
+        self.col_nchar = "stable_col_nchar%s" %self.col_base
+        self.col_float = "stable_col_float%s" %self.col_base
+        self.col_double = "stable_col_double%s" %self.col_base
+        self.col_ts = "stable_col_ts%s" %self.col_base
+
+        self.tag_base = "abc~!@#$%^&*()-_+=[]{}':,<.>/?stST13579"
+        self.tag_int = "stable_tag_int%s" %self.tag_base
+        self.tag_bigint = "stable_tag_bigint%s" %self.tag_base
+        self.tag_smallint = "stable_tag_smallint%s" %self.tag_base
+        self.tag_tinyint = "stable_tag_tinyint%s" %self.tag_base
+        self.tag_bool = "stable_tag_bool%s" %self.tag_base
+        self.tag_binary = "stable_tag_binary%s" %self.tag_base
+        self.tag_nchar = "stable_tag_nchar%s" %self.tag_base
+        self.tag_float = "stable_tag_float%s" %self.tag_base
+        self.tag_double = "stable_tag_double%s" %self.tag_base
+        self.tag_ts = "stable_tag_ts%s" %self.tag_base
+
+        tdSql.execute('''create stable db.`%s` (ts timestamp, `%s` int , `%s` bigint , `%s` smallint , `%s` tinyint, `%s` bool , 
+                        `%s` binary(20) , `%s` nchar(20) ,`%s` float , `%s` double , `%s` timestamp) 
+                        tags(loc nchar(20),  `%s` int , `%s` bigint , `%s` smallint , `%s` tinyint, `%s` bool , 
+                        `%s` binary(20) , `%s` nchar(20) ,`%s` float , `%s` double , `%s` timestamp);'''
+                        %(self.stb1, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, 
+                        self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts, 
+                        self.tag_int, self.tag_bigint, self.tag_smallint, self.tag_tinyint, self.tag_bool, 
+                        self.tag_binary, self.tag_nchar, self.tag_float, self.tag_double, self.tag_ts))
+        tdSql.query("describe db.`%s` ; " %self.stb1)
+        tdSql.checkRows(22)
+
+        tdSql.query("select _block_dist() from db.`%s` ; " %self.stb1)
+        tdSql.checkRows(0)
+
+        tdSql.query("show create stable db.`%s` ; " %self.stb1)
+        tdSql.checkData(0, 0, self.stb1)
+        tdSql.checkData(0, 1, "create table `%s` (`ts` TIMESTAMP,`%s` INT,`%s` BIGINT,`%s` SMALLINT,`%s` TINYINT,`%s` BOOL,`%s` BINARY(20),`%s` NCHAR(20),`%s` FLOAT,`%s` DOUBLE,`%s` TIMESTAMP)\
+ TAGS (`loc` NCHAR(20),`%s` INT,`%s` BIGINT,`%s` SMALLINT,`%s` TINYINT,`%s` BOOL,`%s` BINARY(20),`%s` NCHAR(20),`%s` FLOAT,`%s` DOUBLE,`%s` TIMESTAMP)" 
+                    %(self.stb1, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, 
+                        self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts, 
+                        self.tag_int, self.tag_bigint, self.tag_smallint, self.tag_tinyint, self.tag_bool, 
+                        self.tag_binary, self.tag_nchar, self.tag_float, self.tag_double, self.tag_ts))
+
+        tdSql.execute("create table db.`table!1` using db.`%s` tags('table_1' , '0' , '0' , '0' , '0' , 0 , '0' , '0' , '0' , '0' ,'0')" %self.stb1)
+        tdSql.query("describe db.`table!1` ; ")
+        tdSql.checkRows(22)
+
+        time.sleep(10)
+        tdSql.query("show create table db.`table!1` ; ")
+        tdSql.checkData(0, 0, "table!1")
+        tdSql.checkData(0, 1, "CREATE TABLE `table!1` USING `%s` TAGS (\"table_1\",0,0,0,0,false,\"0\",\"0\",0.000000,0.000000,\"0\")" %self.stb1)
+        
+        tdSql.execute("insert into db.`table!1` values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)")        
+        sql = " select * from  db.`table!1`; "
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(1)
+        sql = '''select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from  db.`table!1`; '''\
+                %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts) 
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(1)
+        
+        time.sleep(1)
+        tdSql.execute('''insert into db.`table!1`(ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`) values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)'''\
+                %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts) )        
+        sql = " select * from  db.`table!1`; "
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(2)
+
+        tdSql.query("select count(*) from  db.`table!1`; ")
+        tdSql.checkData(0, 0, 2)       
+        tdSql.query("select _block_dist() from db.`%s` ; " %self.stb1)
+        tdSql.checkRows(1)
+
+        tdSql.execute("create table db.`%s` using db.`%s` TAGS (\"table_2\",2,2,2,2,true,\"2\",\"2\",2.000000,2.000000,\"2\")" %(self.tb1,self.stb1))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.query("show create table db.`%s` ; " %self.tb1)
+        tdSql.checkData(0, 0, self.tb1)
+        tdSql.checkData(0, 1, "CREATE TABLE `%s` USING `%s` TAGS (\"table_2\",2,2,2,2,true,\"2\",\"2\",2.000000,2.000000,\"2\")" %(self.tb1,self.stb1))
+        
+        tdSql.execute("insert into db.`%s`  values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)" %self.tb1)       
+        sql = "select * from  db.`%s` ; " %self.tb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(1)
+        sql = '''select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from  db.`%s` ; '''\
+                %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts,\
+                self.tag_int, self.tag_bigint, self.tag_smallint, self.tag_tinyint, self.tag_bool, self.tag_binary, self.tag_nchar, self.tag_float, self.tag_double, self.tag_ts, self.tb1) 
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(1)        
+
+        time.sleep(1)
+        tdSql.execute('''insert into db.`%s`(ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`) values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)'''\
+                %(self.tb1, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts) )        
+        sql = " select * from  db.`%s` ; " %self.tb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(2)
+
+        sql = " select * from  db.`%s` where `%s`=1 and `%s`=2 and `%s`=3 and `%s`=4 and `%s`='True' and `%s`=6 and `%s`=7 and `%s`=8 and `%s`=9 and `%s`=10; " \
+            %(self.tb1, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts)
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(2)
+
+        tdSql.query("select count(*) from  db.`%s`; "  %self.tb1)
+        tdSql.checkData(0, 0, 2)
+        sql = "select * from  db.`%s` ; "  %self.stb1       
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(4)
+        tdSql.query("select count(*) from  db.`%s`; " %self.stb1)
+        tdSql.checkData(0, 0, 4)
+
+        sql = "select * from (select * from db.`%s`) ; " %self.stb1       
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(4)
+        tdSql.query("select count(*) from (select * from db.`%s`) ; " %self.stb1)
+        tdSql.checkData(0, 0, 4)
+
+        sql = "select * from (select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from db.`%s`) ; " \
+                    %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts, self.stb1)
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(4)
+
+        sql = "select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from (select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from db.`%s`) ; " \
+                    %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts,\
+                    self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts, self.stb1)
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(4)
+
+        sql = "select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from (select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from db.`%s`\
+                    where `%s`=1 and `%s`=2 and `%s`=3 and `%s`=4 and `%s`='True' and `%s`=6 and `%s`=7 and `%s`=8 and `%s`=9 and `%s`=10 ) ; " \
+                    %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts,\
+                    self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts, self.stb1, \
+                    self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts)
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(4)
+
+        tdSql.query("show db.stables like 'stable_1%' ")
+        tdSql.checkRows(1)
+        tdSql.query("show db.tables like 'table%' ")
+        tdSql.checkRows(2)
+
+        self.cr_tb1 = "create_table_1~!@#$%^&*()-_+=[]{}':,<.>/?stST13579"
+        tdSql.execute("create table db.`%s` as select avg(`%s`) from db.`%s` where ts > now interval(1m) sliding(30s);" %(self.cr_tb1,self.col_bigint,self.stb1))
+        tdSql.query("show db.tables like 'create_table_%' ")
+        tdSql.checkRows(1)
+
+        print("==============drop\ add\ change\ modify column or tag")
+        print("==============drop==============")
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_ts))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(21)
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_double))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(20)
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_float))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(19)
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_nchar))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(18)
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_binary))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(17)
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_bool))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(16)
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_tinyint))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(15)
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_smallint))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(14)
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_bigint))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(13)
+        tdSql.execute("ALTER TABLE db.`%s` DROP TAG `%s`; " %(self.stb1, self.tag_int))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(12)
+
+        tdSql.execute("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_ts))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall_9(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(11)
+        tdSql.execute("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_double))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall_8(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(10)
+        tdSql.execute("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_float))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall_7(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(9)
+        tdSql.execute("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_nchar))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall_6(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(8)
+        tdSql.execute("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_binary))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall_5(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(7)
+        tdSql.execute("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_bool))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall_4(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(6)
+        tdSql.execute("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_tinyint))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall_3(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(5)
+        tdSql.execute("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_smallint))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall_2(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(4)
+        tdSql.execute("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_bigint))
+        sql = " select * from  db.`%s`; " %self.stb1
+        datacheck = self.table1_checkall_1(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(3)
+        tdSql.error("ALTER TABLE db.`%s` DROP COLUMN `%s`; " %(self.stb1, self.col_int))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(3)
+
+        print("==============add==============")
+        tdSql.execute("ALTER TABLE db.`%s` ADD COLUMN `%s` bigint; " %(self.stb1, self.col_bigint))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(4)
+        tdSql.execute("ALTER TABLE db.`%s` ADD COLUMN `%s` smallint; " %(self.stb1, self.col_smallint))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(5)
+        tdSql.execute("ALTER TABLE db.`%s` ADD COLUMN `%s` tinyint; " %(self.stb1, self.col_tinyint))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(6)
+        tdSql.execute("ALTER TABLE db.`%s` ADD COLUMN `%s` bool; " %(self.stb1, self.col_bool))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(7)
+        tdSql.execute("ALTER TABLE db.`%s` ADD COLUMN `%s` binary(20); " %(self.stb1, self.col_binary))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(8)
+
+        tdSql.execute("insert into db.`%s`  values(now, 1 , 2, 3, 4, 5, 6)" %self.tb1)       
+        sql = "select * from  db.`%s` order by ts desc; " %self.tb1
+        datacheck = self.table1_checkall_5(sql)
+
+        tdSql.execute("ALTER TABLE db.`%s` ADD COLUMN `%s` nchar(20); " %(self.stb1, self.col_nchar))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(9)
+        tdSql.execute("ALTER TABLE db.`%s` ADD COLUMN `%s` float; " %(self.stb1, self.col_float))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(10)
+        tdSql.execute("ALTER TABLE db.`%s` ADD COLUMN `%s` double; " %(self.stb1, self.col_double))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(11)
+        tdSql.execute("ALTER TABLE db.`%s` ADD COLUMN `%s` timestamp; " %(self.stb1, self.col_ts))
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(12)
+
+        tdSql.execute("insert into db.`%s`  values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)" %self.tb1)       
+        sql = "select * from  db.`%s` order by ts desc; " %self.tb1
+        datacheck = self.table1_checkall(sql)
+
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` int; " %(self.stb1, self.tag_int))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(13)
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` bigint; " %(self.stb1, self.tag_bigint))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(14)
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` smallint; " %(self.stb1, self.tag_smallint))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(15)
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` tinyint; " %(self.stb1, self.tag_tinyint))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(16)
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` bool; " %(self.stb1, self.tag_bool))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(17)
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` binary(20); " %(self.stb1, self.tag_binary))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(18)
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` nchar(20); " %(self.stb1, self.tag_nchar))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(19)
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` float; " %(self.stb1, self.tag_float))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(20)
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` double; " %(self.stb1, self.tag_double))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(21)
+        tdSql.execute("ALTER TABLE db.`%s` ADD TAG `%s` timestamp; " %(self.stb1, self.tag_ts))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+
+        print("==============change==============")
+        self.tag_base_change = "abcdas"
+        self.tag_int_change = "stable_tag_int%s" %self.tag_base_change
+        self.tag_bigint_change = "stable_tag_bigint%s" %self.tag_base_change
+        self.tag_smallint_change = "stable_tag_smallint%s" %self.tag_base_change
+        self.tag_tinyint_change = "stable_tag_tinyint%s" %self.tag_base_change
+        self.tag_bool_change = "stable_tag_bool%s" %self.tag_base_change
+        self.tag_binary_change = "stable_tag_binary%s" %self.tag_base_change
+        self.tag_nchar_change = "stable_tag_nchar%s" %self.tag_base_change
+        self.tag_float_change = "stable_tag_float%s" %self.tag_base_change
+        self.tag_double_change = "stable_tag_double%s" %self.tag_base_change
+        self.tag_ts_change = "stable_tag_ts%s" %self.tag_base_change
+
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_int, self.tag_int_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_bigint, self.tag_bigint_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_smallint, self.tag_smallint_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_tinyint, self.tag_tinyint_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_bool, self.tag_bool_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_binary, self.tag_binary_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_nchar, self.tag_nchar_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_float, self.tag_float_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_double, self.tag_double_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER TABLE db.`%s` CHANGE TAG `%s` `%s`; " %(self.stb1, self.tag_ts, self.tag_ts_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+
+        print("==============modify==============")
+        # TD-10810
+        tdSql.execute("ALTER STABLE db.`%s` MODIFY TAG `%s` binary(30); ; " %(self.stb1, self.tag_binary_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)
+        tdSql.execute("ALTER STABLE db.`%s` MODIFY TAG `%s` nchar(30); ; " %(self.stb1, self.tag_nchar_change))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)      
+
+        tdSql.execute("ALTER STABLE db.`%s` MODIFY COLUMN `%s` binary(30); ; " %(self.stb1, self.col_binary))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)    
+        tdSql.execute("ALTER STABLE db.`%s` MODIFY COLUMN `%s` nchar(30); ; " %(self.stb1, self.col_nchar))
+        sql = " select * from  db.`%s` order by ts desc; " %self.stb1
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db.`%s` ; " %self.tb1)
+        tdSql.checkRows(22)  
+
+        print("==============drop table\stable")
+        try:
+            tdSql.execute("drop table db.`%s` " %self.tb1)
+        except Exception as e:
+            tdLog.exit(e)
+
+        tdSql.error("select * from db.`%s`" %self.tb1)
+        tdSql.query("show db.stables like 'stable_1%' ")
+        tdSql.checkRows(1)
+
+        try:
+            tdSql.execute("drop table db.`%s` " %self.stb1)
+        except Exception as e:
+            tdLog.exit(e)
+
+        tdSql.error("select * from db.`%s`" %self.tb1)
+        tdSql.error("select * from db.`%s`" %self.stb1)
+       
+        
+        print("==============step2,#create stable,table; insert table; show table; select table; drop table")
+        
+        self.stb2 = "stable_2~!@#$%^&*()-_+=[]{}';:,<.>/?stST24680~!@#$%^&*()-_+=[]{}"
+        self.tb2 = "table_2~!@#$%^&*()-_+=[]{}';:,<.>/?stST24680~!@#$%^&*()-_+=[]{}"
+
+        tdSql.execute("create stable `%s` (ts timestamp, i int) tags(j int);" %self.stb2)
+        tdSql.query("describe `%s` ; "%self.stb2)
+        tdSql.checkRows(3)
+
+        tdSql.query("select _block_dist() from `%s` ; " %self.stb2)
+        tdSql.checkRows(0)
+
+        tdSql.query("show create stable `%s` ; " %self.stb2)
+        tdSql.checkData(0, 0, self.stb2)
+        tdSql.checkData(0, 1, "create table `%s` (`ts` TIMESTAMP,`i` INT) TAGS (`j` INT)" %self.stb2)
+
+        tdSql.execute("create table `table!2` using `%s` tags(1)" %self.stb2)
+        tdSql.query("describe `table!2` ; ")
+        tdSql.checkRows(3)
+
+        time.sleep(10)
+
+        tdSql.query("show create table `table!2` ; ")
+        tdSql.checkData(0, 0, "table!2")
+        tdSql.checkData(0, 1, "CREATE TABLE `table!2` USING `%s` TAGS (1)" %self.stb2)
+        tdSql.execute("insert into `table!2` values(now, 1)")
+        tdSql.query("select * from  `table!2`; ")
+        tdSql.checkRows(1)
+        tdSql.query("select count(*) from  `table!2`; ")
+        tdSql.checkData(0, 0, 1)
+        tdSql.query("select _block_dist() from `%s` ; " %self.stb2)
+        tdSql.checkRows(1)
+
+        tdSql.execute("create table `%s` using `%s` tags(1)" %(self.tb2,self.stb2))
+        tdSql.query("describe `%s` ; " %self.tb2)
+        tdSql.checkRows(3)
+        tdSql.query("show create table `%s` ; " %self.tb2)
+        tdSql.checkData(0, 0, self.tb2)
+        tdSql.checkData(0, 1, "CREATE TABLE `%s` USING `%s` TAGS (1)" %(self.tb2,self.stb2))
+        tdSql.execute("insert into `%s`  values(now, 1)" %self.tb2)
+        tdSql.query("select * from  `%s` ; " %self.tb2)
+        tdSql.checkRows(1)
+        tdSql.query("select count(*) from  `%s`; " %self.tb2)
+        tdSql.checkData(0, 0, 1)
+        tdSql.query("select * from  `%s` ; " %self.stb2)
+        tdSql.checkRows(2)
+        tdSql.query("select count(*) from  `%s`; " %self.stb2)
+        tdSql.checkData(0, 0, 2)
+
+        tdSql.query("select * from (select * from `%s`) ; "  %self.stb2)
+        tdSql.checkRows(2)
+        tdSql.query("select count(*) from (select * from `%s` ); "  %self.stb2)
+        tdSql.checkData(0, 0, 2)
+
+        tdSql.query("show stables like 'stable_2%' ")
+        tdSql.checkRows(1)
+        tdSql.query("show tables like 'table%' ")
+        tdSql.checkRows(2)
+
+
+        #TD-10536
+        self.cr_tb2 = "create_table_2~!@#$%^&*()-_+=[]{}';:,<.>/?stST24680~!@#$%^&*()-_+=[]{}"
+        tdSql.execute("create table `%s` as select * from `%s` ;" %(self.cr_tb2,self.stb2))
+        tdSql.query("show db.tables like 'create_table_%' ")
+        tdSql.checkRows(1)
+
+
+        print("==============step3,#create regular_table; insert regular_table; show regular_table; select regular_table; drop regular_table")
+        self.regular_table = "regular_table~!@#$%^&*()-_+=[]{}';:,<.>/?stST24680~!@#$%^&*()-_+=[]{}"
+        
+        self.regular_col_base = "123@#$%^&*()-_+=[]{};:,<.>/?~!$%^"
+
+        self.col_int = "regular_table_col_int%s" %self.regular_col_base
+        print(self.col_int)
+        self.col_bigint = "regular_table_col_bigint%s" %self.regular_col_base
+        self.col_smallint = "regular_table_col_smallint%s" %self.regular_col_base
+        self.col_tinyint = "regular_table_col_tinyint%s" %self.regular_col_base
+        self.col_bool = "regular_table_col_bool%s" %self.regular_col_base
+        self.col_binary = "regular_table_col_binary%s" %self.regular_col_base
+        self.col_nchar = "regular_table_col_nchar%s" %self.regular_col_base
+        self.col_float = "regular_table_col_float%s" %self.regular_col_base
+        self.col_double = "regular_table_col_double%s" %self.regular_col_base
+        self.col_ts = "regular_table_col_ts%s" %self.regular_col_base
+
+        tdSql.execute("create table `%s` (ts timestamp,`%s` int , `%s` bigint , `%s` smallint , `%s` tinyint, `%s` bool , \
+                    `%s` binary(20) , `%s` nchar(20) ,`%s` float , `%s` double , `%s` timestamp) ;"\
+                    %(self.regular_table, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, 
+                        self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts))
+        tdSql.query("describe `%s` ; "%self.regular_table)
+        tdSql.checkRows(11)
+
+        tdSql.query("select _block_dist() from `%s` ; " %self.regular_table)
+        tdSql.checkRows(1)
+
+        tdSql.query("show create table `%s` ; " %self.regular_table)
+        tdSql.checkData(0, 0, self.regular_table)
+        tdSql.checkData(0, 1, "create table `%s` (`ts` TIMESTAMP,`%s` INT,`%s` BIGINT,`%s` SMALLINT,`%s` TINYINT,`%s` BOOL,`%s` BINARY(20),`%s` NCHAR(20),`%s` FLOAT,`%s` DOUBLE,`%s` TIMESTAMP)" 
+                    %(self.regular_table, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, 
+                        self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts))
+
+        tdSql.execute("insert into `%s`  values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)" %self.regular_table)
+        sql = "select * from  `%s` ; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(1)
+        sql = '''select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from  db2.`%s`; '''\
+                %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts, self.regular_table) 
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(1)
+
+        time.sleep(1)
+        tdSql.execute('''insert into db2.`%s` (ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`) values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)'''\
+                %(self.regular_table, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts) )        
+        sql = " select * from  db2.`%s`; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(2)
+
+        sql = " select * from  db2.`%s` where `%s`=1 and `%s`=2 and `%s`=3 and `%s`=4 and `%s`='True' and `%s`=6 and `%s`=7 and `%s`=8 and `%s`=9 and `%s`=10; " \
+            %(self.regular_table, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts)
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(2)
+
+        tdSql.query("select count(*) from  `%s`; " %self.regular_table)
+        tdSql.checkData(0, 0, 2)
+        tdSql.query("select _block_dist() from `%s` ; " %self.regular_table)
+        tdSql.checkRows(1)
+
+        sql = "select * from (select * from `%s`) ; "  %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(2)
+
+        sql = "select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from (select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from db2.`%s`\
+                    where `%s`=1 and `%s`=2 and `%s`=3 and `%s`=4 and `%s`='True' and `%s`=6 and `%s`=7 and `%s`=8 and `%s`=9 and `%s`=10 ) ; " \
+                    %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts,\
+                    self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts, self.regular_table, \
+                    self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts)
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(2)
+        
+        tdSql.query("select count(*) from (select * from `%s` ); "  %self.regular_table)
+        tdSql.checkData(0, 0, 2)
+
+        tdSql.query("show tables like 'regular_table%' ")
+        tdSql.checkRows(1)
+
+        self.crr_tb = "create_r_table~!@#$%^&*()-_+=[]{}';:,<.>/?stST24680~!@#$%^&*()-_+=[]{}"
+        tdSql.execute("create table `%s` as select * from `%s` ;" %(self.crr_tb,self.regular_table))
+        tdSql.query("show db2.tables like 'create_r_table%' ")
+        tdSql.checkRows(1)
+
+
+        print("==============drop\ add\ change\ modify column ")
+        print("==============drop==============")
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_ts))
+        sql = " select * from  db2.`%s`; " %self.regular_table
+        datacheck = self.table1_checkall_9(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(10)
+        tdSql.execute("ALTER TABLE `%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_double))
+        sql = " select * from  `%s`; " %self.regular_table
+        datacheck = self.table1_checkall_8(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(9)
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_float))
+        sql = " select * from  db2.`%s`; " %self.regular_table
+        datacheck = self.table1_checkall_7(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(8)
+        tdSql.execute("ALTER TABLE `%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_nchar))
+        sql = " select * from  `%s`; " %self.regular_table
+        datacheck = self.table1_checkall_6(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(7)
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_binary))
+        sql = " select * from  db2.`%s`; " %self.regular_table
+        datacheck = self.table1_checkall_5(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(6)
+        tdSql.execute("ALTER TABLE `%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_bool))
+        sql = " select * from  `%s`; " %self.regular_table
+        datacheck = self.table1_checkall_4(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(5)
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_tinyint))
+        sql = " select * from  db2.`%s`; " %self.regular_table
+        datacheck = self.table1_checkall_3(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(4)
+        tdSql.execute("ALTER TABLE `%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_smallint))
+        sql = " select * from  `%s`; " %self.regular_table
+        datacheck = self.table1_checkall_2(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(3)
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_bigint))
+        sql = " select * from  db2.`%s`; " %self.regular_table
+        datacheck = self.table1_checkall_1(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(2)
+        tdSql.error("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_int))
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(2)
+
+        print("==============add==============")
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` bigint; " %(self.regular_table, self.col_bigint))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(3)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` smallint; " %(self.regular_table, self.col_smallint))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(4)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` tinyint; " %(self.regular_table, self.col_tinyint))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(5)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` bool; " %(self.regular_table, self.col_bool))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(6)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` binary(20); " %(self.regular_table, self.col_binary))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(7)
+
+        tdSql.execute("insert into db2.`%s`  values(now, 1 , 2, 3, 4, 5, 6)" %self.regular_table)       
+        sql = "select * from  db2.`%s` order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_5(sql)
+
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` nchar(20); " %(self.regular_table, self.col_nchar))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(8)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` float; " %(self.regular_table, self.col_float))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(9)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` double; " %(self.regular_table, self.col_double))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(10)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` timestamp; " %(self.regular_table, self.col_ts))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(11)
+
+        tdSql.execute("insert into db2.`%s`  values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)" %self.regular_table)       
+        sql = "select * from  db2.`%s` order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+
+
+        print("==============change, regular not support==============")
+        
+
+        print("==============modify==============")
+        # TD-10810
+        tdSql.execute("ALTER TABLE db2.`%s` MODIFY COLUMN `%s` binary(30); ; " %(self.regular_table, self.col_binary))
+        sql = " select * from  db2.`%s` order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(11)    
+        tdSql.execute("ALTER TABLE `%s` MODIFY COLUMN `%s` nchar(30); ; " %(self.regular_table, self.col_nchar))
+        sql = " select * from  `%s` order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(11)  
+
+        print("==============step4,#taosdump out ; drop db ; taosdumo in")
+        assert os.system("taosdump -D db2 ") == 0
+
+        tdSql.execute('''drop database if exists db2 ;''')
+
+        assert os.system("taosdump -i . -g") == 0
+
+        print("==============step5,#create regular_table; insert regular_table; show regular_table; select regular_table; drop regular_table")
+        self.regular_table = "regular_table~!@#$%^&*()-_+=[]{}';:,<.>/?stST24680~!@#$%^&*()-_+=[]{}"
+        
+        self.regular_col_base = "123@#$%^&*()-_+=[]{};:,<.>/?~!$%^"
+
+        self.col_int = "regular_table_col_int%s" %self.regular_col_base
+        print(self.col_int)
+        self.col_bigint = "regular_table_col_bigint%s" %self.regular_col_base
+        self.col_smallint = "regular_table_col_smallint%s" %self.regular_col_base
+        self.col_tinyint = "regular_table_col_tinyint%s" %self.regular_col_base
+        self.col_bool = "regular_table_col_bool%s" %self.regular_col_base
+        self.col_binary = "regular_table_col_binary%s" %self.regular_col_base
+        self.col_nchar = "regular_table_col_nchar%s" %self.regular_col_base
+        self.col_float = "regular_table_col_float%s" %self.regular_col_base
+        self.col_double = "regular_table_col_double%s" %self.regular_col_base
+        self.col_ts = "regular_table_col_ts%s" %self.regular_col_base
+
+        tdSql.query("describe `%s` ; "%self.regular_table)
+        tdSql.checkRows(11)
+
+        tdSql.query("select _block_dist() from `%s` ; " %self.regular_table)
+        tdSql.checkRows(1)
+
+        tdSql.query("show create table `%s` ; " %self.regular_table)
+        tdSql.checkData(0, 0, self.regular_table)
+        tdSql.checkData(0, 1, "create table `%s` (`ts` TIMESTAMP,`%s` INT,`%s` BIGINT,`%s` SMALLINT,`%s` TINYINT,`%s` BOOL,`%s` BINARY(30),`%s` NCHAR(30),`%s` FLOAT,`%s` DOUBLE,`%s` TIMESTAMP)" 
+                    %(self.regular_table, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, 
+                        self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts))
+
+        tdSql.execute("insert into `%s`  values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)" %self.regular_table)
+        sql = "select * from  `%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(5)
+        sql = '''select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from  db2.`%s`  order by ts desc; '''\
+                %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts, self.regular_table) 
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(5)
+
+        time.sleep(1)
+        tdSql.execute('''insert into db2.`%s` (ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`) values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)'''\
+                %(self.regular_table, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts) )        
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(6)
+
+        sql = " select * from  db2.`%s` where `%s`=1 and `%s`=2 and `%s`=3 and `%s`=4 and `%s`='True' and `%s`=6 and `%s`=7 and `%s`=8 and `%s`=9 and `%s`=10; " \
+            %(self.regular_table, self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts)
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(3)
+
+        tdSql.query("select count(*) from  `%s` order by ts desc; " %self.regular_table)
+        tdSql.checkData(0, 0, 6)
+        tdSql.query("select _block_dist() from `%s` ; " %self.regular_table)
+        tdSql.checkRows(1)
+
+        sql = "select * from (select * from `%s` order by ts desc) ; "  %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(6)
+
+        sql = "select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from (select ts ,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s`,`%s` from db2.`%s`\
+                    where `%s`=1 and `%s`=2 and `%s`=3 and `%s`=4 and `%s`='True' and `%s`=6 and `%s`=7 and `%s`=8 and `%s`=9 and `%s`=10 ) ; " \
+                    %(self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts,\
+                    self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts, self.regular_table, \
+                    self.col_int, self.col_bigint, self.col_smallint, self.col_tinyint, self.col_bool, self.col_binary, self.col_nchar, self.col_float, self.col_double, self.col_ts)
+        datacheck = self.table1_checkall(sql)
+        tdSql.checkRows(3)
+        
+        tdSql.query("select count(*) from (select * from `%s` ); "  %self.regular_table)
+        tdSql.checkData(0, 0, 6)
+
+        tdSql.query("show tables like 'regular_table%' ")
+        tdSql.checkRows(1)
+
+        tdSql.query("show db2.tables like 'create_r_table%' ")
+        tdSql.checkRows(1)
+
+        print("==============drop\ add\ change\ modify column ")
+        print("==============drop==============")
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_ts))
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_9(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(10)
+        tdSql.execute("ALTER TABLE `%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_double))
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_8(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(9)
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_float))
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_7(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(8)
+        tdSql.execute("ALTER TABLE `%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_nchar))
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_6(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(7)
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_binary))
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_5(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(6)
+        tdSql.execute("ALTER TABLE `%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_bool))
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_4(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(5)
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_tinyint))
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_3(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(4)
+        tdSql.execute("ALTER TABLE `%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_smallint))
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_2(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(3)
+        tdSql.execute("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_bigint))
+        sql = " select * from  db2.`%s`  order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_1(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(2)
+        tdSql.error("ALTER TABLE db2.`%s` DROP COLUMN `%s`; " %(self.regular_table, self.col_int))
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(2)
+
+        print("==============add==============")
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` bigint; " %(self.regular_table, self.col_bigint))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(3)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` smallint; " %(self.regular_table, self.col_smallint))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(4)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` tinyint; " %(self.regular_table, self.col_tinyint))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(5)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` bool; " %(self.regular_table, self.col_bool))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(6)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` binary(20); " %(self.regular_table, self.col_binary))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(7)
+
+        tdSql.execute("insert into db2.`%s`  values(now, 1 , 2, 3, 4, 5, 6)" %self.regular_table)       
+        sql = "select * from  db2.`%s` order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall_5(sql)
+
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` nchar(20); " %(self.regular_table, self.col_nchar))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(8)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` float; " %(self.regular_table, self.col_float))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(9)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` double; " %(self.regular_table, self.col_double))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(10)
+        tdSql.execute("ALTER TABLE db2.`%s` ADD COLUMN `%s` timestamp; " %(self.regular_table, self.col_ts))
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(11)
+
+        tdSql.execute("insert into db2.`%s`  values(now, 1 , 2, 3, 4, 5, 6 ,7 ,8 ,9 ,10)" %self.regular_table)       
+        sql = "select * from  db2.`%s` order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+
+
+        print("==============change, regular not support==============")
+        
+
+        print("==============modify==============")
+        # TD-10810
+        tdSql.execute("ALTER TABLE db2.`%s` MODIFY COLUMN `%s` binary(40); ; " %(self.regular_table, self.col_binary))
+        sql = " select * from  db2.`%s` order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe db2.`%s` ; " %self.regular_table)
+        tdSql.checkRows(11)    
+        tdSql.execute("ALTER TABLE `%s` MODIFY COLUMN `%s` nchar(40); ; " %(self.regular_table, self.col_nchar))
+        sql = " select * from  `%s` order by ts desc; " %self.regular_table
+        datacheck = self.table1_checkall(sql)
+        tdSql.query("describe `%s` ; " %self.regular_table)
+        tdSql.checkRows(11)       
+
+        os.system("rm db*")
+        os.system("rm dump_result.txt*")  
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/system-test/fulltest-insert.sh

 python3 test.py -f 1-insert/TD-11970.py
 python3 test.py -f 1-insert/stmt_error.py  
-
+python3 test.py -f 1-insert/Null_tag_Line_insert.py

tests/system-test/fulltest-query.sh

@@ -3,9 +3,8 @@ python3 ./test.py -f 2-query/TD-11256.py
 python3 ./test.py -f 2-query/TD-11945_crash.py
 python3 ./test.py -f 2-query/TD-12340-12342.py
 
-
 python3 ./test.py -f 2-query/TD-11561.py
 
-
 python3 ./test.py -f 2-query/TD-12204.py
 
+

tests/system-test/fulltest-tools.sh

 python3 ./test.py -f 5-taos-tools/basic.py
 python3 ./test.py -f 5-taos-tools/TD-12478.py
+python3 ./test.py -f 5-taos-tools/dump_col_tag.py

tests/test-CI.sh

@@ -124,11 +124,9 @@ function runPyCaseOneByOnefq() {
     else
     echo $line
       if [[ $line =~ ^bash.* ]]; then
-        # $line > case.log 2>&1 || cat case.log && exit 8
-        # cat case.log
         $line > case.log 2>&1  
-        if [ $? -ne 0 ];then
         cat case.log
+        if [ $? -ne 0 ];then
           exit 8
         fi
       fi

tests/test-all.sh

@@ -139,17 +139,17 @@ function runPyCaseOneByOne {
           case=`echo $line|awk '{print $NF}'`
         fi
         start_time=`date +%s`
-        date +%F\ %T | tee -a pytest-out.log
+        date +%F\ %T | tee -a $tests_dir/pytest-out.log
         echo -n $case
         $line > /dev/null 2>&1 && \
-          echo -e "${GREEN} success${NC}" | tee -a pytest-out.log || \
-          echo -e "${RED} failed${NC}" | tee -a pytest-out.log
+          echo -e "${GREEN} success${NC}" | tee -a $tests_dir/pytest-out.log || \
+          echo -e "${RED} failed${NC}" | tee -a $tests_dir/pytest-out.log
         end_time=`date +%s`
         out_log=`tail -1 pytest-out.log  `
         # if [[ $out_log =~ 'failed' ]];then
         #   exit 8
         # fi
-        echo execution time of $case was `expr $end_time - $start_time`s. | tee -a pytest-out.log
+        echo execution time of $case was `expr $end_time - $start_time`s. | tee -a $tests_dir/pytest-out.log
       else
         $line > /dev/null 2>&1
       fi
@@ -339,10 +339,9 @@ if [ "$2" != "sim" ] && [ "$2" != "jdbc" ] && [ "$2" != "unit" ]  && [ "$2" != "
 
   export LD_LIBRARY_PATH=$TOP_DIR/$LIB_DIR:$LD_LIBRARY_PATH
 
+  [ -f $tests_dir/pytest-out.log ] && rm -f $tests_dir/pytest-out.log
   cd $tests_dir/pytest
 
-  [ -f pytest-out.log ] && rm -f pytest-out.log
-
   if [ "$1" == "cron" ]; then
     echo "### run Python regression test ###"
     runPyCaseOneByOne regressiontest.sh