[TD-6314]<test>:add test case for _block_dist()

tests/pytest/query/query.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
-from util.log import tdLog
-from util.cases import tdCases
-from util.sql import tdSql
-from util.dnodes import tdDnodes
-
-class TDTestCase:
-    def init(self, conn, logSql):
-        tdLog.debug("start to execute %s" % __file__)
-        tdSql.init(conn.cursor(), logSql)
-
-        self.ts = 1538548685000
-
-    def run(self):
-        tdSql.prepare()
-
-        print("==============step1")
-        tdSql.execute(
-            "create table if not exists st (ts timestamp, tagtype int) tags(dev nchar(50))")
-        tdSql.execute(
-            'CREATE TABLE if not exists dev_001 using st tags("dev_01")')
-        tdSql.execute(
-            'CREATE TABLE if not exists dev_002 using st tags("dev_02")')
-
-        print("==============step2")
-
-        tdSql.execute(
-            """INSERT INTO dev_001(ts, tagtype) VALUES('2020-05-13 10:00:00.000', 1),
-            ('2020-05-13 10:00:00.001', 1)
-             dev_002 VALUES('2020-05-13 10:00:00.001', 1)""")
-
-        tdSql.query("select * from db.st where ts='2020-05-13 10:00:00.000'")
-        tdSql.checkRows(1)
-
-        tdSql.query("select tbname, dev from dev_001") 
-        tdSql.checkRows(1)
-        tdSql.checkData(0, 0, 'dev_001')
-        tdSql.checkData(0, 1, 'dev_01')
-
-        tdSql.query("select tbname, dev, tagtype from dev_001") 
-        tdSql.checkRows(2)
-        tdSql.checkData(0, 0, 'dev_001')
-        tdSql.checkData(0, 1, 'dev_01')
-        tdSql.checkData(0, 2, 1)
-        tdSql.checkData(1, 0, 'dev_001')
-        tdSql.checkData(1, 1, 'dev_01')
-        tdSql.checkData(1, 2, 1)
-
-        ## test case for https://jira.taosdata.com:18080/browse/TD-2488
-        tdSql.execute("create table m1(ts timestamp, k int) tags(a int)")
-        tdSql.execute("create table t1 using m1 tags(1)")
-        tdSql.execute("create table t2 using m1 tags(2)")
-        tdSql.execute("insert into t1 values('2020-1-1 1:1:1', 1)")
-        tdSql.execute("insert into t1 values('2020-1-1 1:10:1', 2)")
-        tdSql.execute("insert into t2 values('2020-1-1 1:5:1', 99)")
-        
-        tdSql.query("select count(*) from m1 where ts = '2020-1-1 1:5:1' ")
-        tdSql.checkRows(1)
-        tdSql.checkData(0, 0, 1)
-
-        tdDnodes.stop(1)
-        tdDnodes.start(1)
-
-        tdSql.query("select count(*) from m1 where ts = '2020-1-1 1:5:1' ")
-        tdSql.checkRows(1)
-        tdSql.checkData(0, 0, 1)
-
-        ## test case for https://jira.taosdata.com:18080/browse/TD-1930
-        tdSql.execute("create table tb(ts timestamp, c1 int, c2 binary(10), c3 nchar(10), c4 float, c5 bool)")
-        for i in range(10):
-            tdSql.execute("insert into tb values(%d, %d, 'binary%d', 'nchar%d', %f, %d)" % (self.ts + i, i, i, i, i + 0.1, i % 2))
-        
-        tdSql.error("select * from tb where c2 = binary2")
-        tdSql.error("select * from tb where c3 = nchar2")
-
-        tdSql.query("select * from tb where c2 = 'binary2' ")
-        tdSql.checkRows(1)
-
-        tdSql.query("select * from tb where c3 = 'nchar2' ")
-        tdSql.checkRows(1)
-
-        tdSql.query("select * from tb where c1 = '2' ")
-        tdSql.checkRows(1)
-
-        tdSql.query("select * from tb where c1 = 2 ")
-        tdSql.checkRows(1)
-
-        tdSql.query("select * from tb where c4 = '0.1' ")
-        tdSql.checkRows(1)
-
-        tdSql.query("select * from tb where c4 = 0.1 ")
-        tdSql.checkRows(1)
-
-        tdSql.query("select * from tb where c5 = true ")
-        tdSql.checkRows(5)
-
-        tdSql.query("select * from tb where c5 = 'true' ")
-        tdSql.checkRows(5)
-
-        # For jira: https://jira.taosdata.com:18080/browse/TD-2850
-        tdSql.execute("create database 'Test' ")
-        tdSql.execute("use 'Test' ")
-        tdSql.execute("create table 'TB'(ts timestamp, 'Col1' int) tags('Tag1' int)")
-        tdSql.execute("insert into 'Tb0' using tb tags(1) values(now, 1)")
-        tdSql.query("select * from tb")
-        tdSql.checkRows(1)
-
-        tdSql.query("select * from tb0")
-        tdSql.checkRows(1)
-        
-
-    def stop(self):
-        tdSql.close()
-        tdLog.success("%s successfully executed" % __file__)
-
-
-tdCases.addWindows(__file__, TDTestCase())
-tdCases.addLinux(__file__, TDTestCase())
+###################################################################
+#           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
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+from util.dnodes import tdDnodes
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+        self.ts = 1538548685000
+
+    def run(self):
+        tdSql.prepare()
+
+        print("==============step1")
+        tdSql.execute(
+            "create table if not exists st (ts timestamp, tagtype int) tags(dev nchar(50))")
+        tdSql.execute(
+            'CREATE TABLE if not exists dev_001 using st tags("dev_01")')
+        tdSql.execute(
+            'CREATE TABLE if not exists dev_002 using st tags("dev_02")')
+
+        print("==============step2")
+
+        tdSql.execute(
+            """INSERT INTO dev_001(ts, tagtype) VALUES('2020-05-13 10:00:00.000', 1),
+            ('2020-05-13 10:00:00.001', 1)
+             dev_002 VALUES('2020-05-13 10:00:00.001', 1)""")
+
+        tdSql.query("select * from db.st where ts='2020-05-13 10:00:00.000'")
+        tdSql.checkRows(1)
+
+        tdSql.query("select tbname, dev from dev_001")
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, 'dev_001')
+        tdSql.checkData(0, 1, 'dev_01')
+
+        tdSql.query("select tbname, dev, tagtype from dev_001")
+        tdSql.checkRows(2)
+        tdSql.checkData(0, 0, 'dev_001')
+        tdSql.checkData(0, 1, 'dev_01')
+        tdSql.checkData(0, 2, 1)
+        tdSql.checkData(1, 0, 'dev_001')
+        tdSql.checkData(1, 1, 'dev_01')
+        tdSql.checkData(1, 2, 1)
+
+        ## test case for https://jira.taosdata.com:18080/browse/TD-2488
+        tdSql.execute("create table m1(ts timestamp, k int) tags(a int)")
+        tdSql.execute("create table t1 using m1 tags(1)")
+        tdSql.execute("create table t2 using m1 tags(2)")
+        tdSql.execute("insert into t1 values('2020-1-1 1:1:1', 1)")
+        tdSql.execute("insert into t1 values('2020-1-1 1:10:1', 2)")
+        tdSql.execute("insert into t2 values('2020-1-1 1:5:1', 99)")
+
+        tdSql.query("select count(*) from m1 where ts = '2020-1-1 1:5:1' ")
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, 1)
+
+        tdDnodes.stop(1)
+        tdDnodes.start(1)
+
+        tdSql.query("select count(*) from m1 where ts = '2020-1-1 1:5:1' ")
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, 1)
+
+        ## test case for https://jira.taosdata.com:18080/browse/TD-1930
+        tdSql.execute("create table tb(ts timestamp, c1 int, c2 binary(10), c3 nchar(10), c4 float, c5 bool)")
+        for i in range(10):
+            tdSql.execute(
+                "insert into tb values(%d, %d, 'binary%d', 'nchar%d', %f, %d)" % (self.ts + i, i, i, i, i + 0.1, i % 2))
+
+        tdSql.error("select * from tb where c2 = binary2")
+        tdSql.error("select * from tb where c3 = nchar2")
+
+        tdSql.query("select * from tb where c2 = 'binary2' ")
+        tdSql.checkRows(1)
+
+        tdSql.query("select * from tb where c3 = 'nchar2' ")
+        tdSql.checkRows(1)
+
+        tdSql.query("select * from tb where c1 = '2' ")
+        tdSql.checkRows(1)
+
+        tdSql.query("select * from tb where c1 = 2 ")
+        tdSql.checkRows(1)
+
+        tdSql.query("select * from tb where c4 = '0.1' ")
+        tdSql.checkRows(1)
+
+        tdSql.query("select * from tb where c4 = 0.1 ")
+        tdSql.checkRows(1)
+
+        tdSql.query("select * from tb where c5 = true ")
+        tdSql.checkRows(5)
+
+        tdSql.query("select * from tb where c5 = 'true' ")
+        tdSql.checkRows(5)
+
+        # For jira: https://jira.taosdata.com:18080/browse/TD-2850
+        tdSql.execute("create database 'Test' ")
+        tdSql.execute("use 'Test' ")
+        tdSql.execute("create table 'TB'(ts timestamp, 'Col1' int) tags('Tag1' int)")
+        tdSql.execute("insert into 'Tb0' using tb tags(1) values(now, 1)")
+        tdSql.query("select * from tb")
+        tdSql.checkRows(1)
+
+        # For jira:https://jira.taosdata.com:18080/browse/TD-6314
+        tdSql.execute("use db")
+        tdSql.execute("create stable stb_001(ts timestamp,v int) tags(c0 int)")
+        tdSql.query("select _block_dist() from stb_001")
+        tdSql.checkRows(1)
+
+        tdSql.query("select * from tb0")
+        tdSql.checkRows(1)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())