Merge pull request #7763 from taosdata/fix/TD-6442

[TD-6442]<feature>: Support OpenTSDB telnet style data import format

src/client/inc/tscParseLine.h

+/*
+ * Copyright (c) 2021 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/>.
+ */
+
+#ifndef TDENGINE_TSCPARSELINE_H
+#define TDENGINE_TSCPARSELINE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+  char* key;
+  uint8_t type;
+  int16_t length;
+  char* value;
+} TAOS_SML_KV;
+
+typedef struct {
+  char* stableName;
+
+  char* childTableName;
+  TAOS_SML_KV* tags;
+  int32_t tagNum;
+
+  // first kv must be timestamp
+  TAOS_SML_KV* fields;
+  int32_t fieldNum;
+} TAOS_SML_DATA_POINT;
+
+typedef enum {
+  SML_TIME_STAMP_NOW,
+  SML_TIME_STAMP_SECONDS,
+  SML_TIME_STAMP_MILLI_SECONDS,
+  SML_TIME_STAMP_MICRO_SECONDS,
+  SML_TIME_STAMP_NANO_SECONDS
+} SMLTimeStampType;
+
+typedef struct {
+  uint64_t id;
+  SHashObj* smlDataToSchema;
+} SSmlLinesInfo;
+
+int tscSmlInsert(TAOS* taos, TAOS_SML_DATA_POINT* points, int numPoint, SSmlLinesInfo* info);
+bool checkDuplicateKey(char *key, SHashObj *pHash, SSmlLinesInfo* info);
+int32_t isValidChildTableName(const char *pTbName, int16_t len);
+
+bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
+                         uint16_t len, SSmlLinesInfo* info);
+int32_t convertSmlTimeStamp(TAOS_SML_KV *pVal, char *value,
+                            uint16_t len, SSmlLinesInfo* info);
+
+void destroySmlDataPoint(TAOS_SML_DATA_POINT* point);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // TDENGINE_TSCPARSELINE_H

src/client/src/tscParseLineProtocol.c

@@ -17,6 +17,7 @@
 #include "tscLog.h"
 
 #include "taos.h"
+#include "tscParseLine.h"
 
 typedef struct  {
   char sTableName[TSDB_TABLE_NAME_LEN];
@@ -27,38 +28,6 @@ typedef struct  {
   uint8_t precision;
 } SSmlSTableSchema;
 
-typedef struct {
-  char* key;
-  uint8_t type;
-  int16_t length;
-  char* value;
-} TAOS_SML_KV;
-
-typedef struct {
-  char* stableName;
-
-  char* childTableName;
-  TAOS_SML_KV* tags;
-  int32_t tagNum;
-
-  // first kv must be timestamp
-  TAOS_SML_KV* fields;
-  int32_t fieldNum;
-} TAOS_SML_DATA_POINT;
-
-typedef enum {
-  SML_TIME_STAMP_NOW,
-  SML_TIME_STAMP_SECONDS,
-  SML_TIME_STAMP_MILLI_SECONDS,
-  SML_TIME_STAMP_MICRO_SECONDS,
-  SML_TIME_STAMP_NANO_SECONDS
-} SMLTimeStampType;
-
-typedef struct {
-  uint64_t id;
-  SHashObj* smlDataToSchema;
-} SSmlLinesInfo;
-
 //=================================================================================================
 
 static uint64_t linesSmlHandleId = 0;
@@ -1565,8 +1534,8 @@ static bool convertStrToNumber(TAOS_SML_KV *pVal, char*str, SSmlLinesInfo* info)
   return true;
 }
 //len does not include '\0' from value.
-static bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
-                                uint16_t len, SSmlLinesInfo* info) {
+bool convertSmlValueType(TAOS_SML_KV *pVal, char *value,
+                         uint16_t len, SSmlLinesInfo* info) {
   if (len <= 0) {
     return false;
   }
@@ -1708,7 +1677,7 @@ static int32_t getTimeStampValue(char *value, uint16_t len,
   if (len >= 2) {
     for (int i = 0; i < len - 2; ++i) {
       if(!isdigit(value[i])) {
-        return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+        return TSDB_CODE_TSC_INVALID_TIME_STAMP;
       }
     }
   }
@@ -1743,20 +1712,20 @@ static int32_t getTimeStampValue(char *value, uint16_t len,
       break;
     }
     default: {
-      return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+      return TSDB_CODE_TSC_INVALID_TIME_STAMP;
     }
   }
   return TSDB_CODE_SUCCESS;
 }
 
-static int32_t convertSmlTimeStamp(TAOS_SML_KV *pVal, char *value,
-                                   uint16_t len, SSmlLinesInfo* info) {
+int32_t convertSmlTimeStamp(TAOS_SML_KV *pVal, char *value,
+                            uint16_t len, SSmlLinesInfo* info) {
   int32_t ret;
   SMLTimeStampType type;
   int64_t tsVal;
 
   if (!isTimeStamp(value, len, &type)) {
-    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+    return TSDB_CODE_TSC_INVALID_TIME_STAMP;
   }
 
   ret = getTimeStampValue(value, len, type, &tsVal);
@@ -1805,7 +1774,7 @@ static int32_t parseSmlTimeStamp(TAOS_SML_KV **pTS, const char **index, SSmlLine
   return ret;
 }
 
-static bool checkDuplicateKey(char *key, SHashObj *pHash, SSmlLinesInfo* info) {
+bool checkDuplicateKey(char *key, SHashObj *pHash, SSmlLinesInfo* info) {
   char *val = NULL;
   char *cur = key;
   char keyLower[TSDB_COL_NAME_LEN];
@@ -1842,7 +1811,7 @@ static int32_t parseSmlKey(TAOS_SML_KV *pKV, const char **index, SHashObj *pHash
   while (*cur != '\0') {
     if (len > TSDB_COL_NAME_LEN) {
       tscError("SML:0x%"PRIx64" Key field cannot exceeds 65 characters", info->id);
-      return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+      return TSDB_CODE_TSC_INVALID_COLUMN_LENGTH;
     }
     //unescaped '=' identifies a tag key
     if (*cur == '=' && *(cur - 1) != '\\') {
@@ -1902,7 +1871,7 @@ static bool parseSmlValue(TAOS_SML_KV *pKV, const char **index,
     free(pKV->key);
     pKV->key = NULL;
     free(value);
-    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+    return TSDB_CODE_TSC_INVALID_VALUE;
   }
   free(value);
 
@@ -1931,7 +1900,7 @@ static int32_t parseSmlMeasurement(TAOS_SML_DATA_POINT *pSml, const char **index
       tscError("SML:0x%"PRIx64" Measurement field cannot exceeds 193 characters", info->id);
       free(pSml->stableName);
       pSml->stableName = NULL;
-      return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+      return TSDB_CODE_TSC_INVALID_TABLE_ID_LENGTH;
     }
     //first unescaped comma or space identifies measurement
     //if space detected first, meaning no tag in the input
@@ -1958,7 +1927,7 @@ static int32_t parseSmlMeasurement(TAOS_SML_DATA_POINT *pSml, const char **index
 }
 
 //Table name can only contain digits(0-9),alphebet(a-z),underscore(_)
-static int32_t isValidChildTableName(const char *pTbName, int16_t len) {
+int32_t isValidChildTableName(const char *pTbName, int16_t len) {
   const char *cur = pTbName;
   for (int i = 0; i < len; ++i) {
     if(!isdigit(cur[i]) && !isalpha(cur[i]) && (cur[i] != '_')) {
@@ -2146,14 +2115,14 @@ int32_t tscParseLines(char* lines[], int numLines, SArray* points, SArray* faile
     if (code != TSDB_CODE_SUCCESS) {
       tscError("SML:0x%"PRIx64" data point line parse failed. line %d : %s", info->id, i, lines[i]);
       destroySmlDataPoint(&point);
-      return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+      return code;
     } else {
       tscDebug("SML:0x%"PRIx64" data point line parse success. line %d", info->id, i);
     }
 
     taosArrayPush(points, &point);
   }
-  return 0;
+  return TSDB_CODE_SUCCESS;
 }
 
 int taos_insert_lines(TAOS* taos, char* lines[], int numLines) {

src/client/src/tscParseOpenTSDB.c

+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "hash.h"
+#include "taos.h"
+
+#include "tscUtil.h"
+#include "tsclient.h"
+#include "tscLog.h"
+
+#include "tscParseLine.h"
+
+#define MAX_TELNET_FILEDS_NUM 2
+#define OTS_TIMESTAMP_COLUMN_NAME "ts"
+#define OTS_METRIC_VALUE_COLUMN_NAME "value"
+
+/* telnet style API parser */
+static uint64_t HandleId = 0;
+
+static uint64_t genUID() {
+  uint64_t id;
+
+  do {
+    id = atomic_add_fetch_64(&HandleId, 1);
+  } while (id == 0);
+
+  return id;
+}
+
+static int32_t parseTelnetMetric(TAOS_SML_DATA_POINT *pSml, const char **index, SSmlLinesInfo* info) {
+  const char *cur = *index;
+  uint16_t len = 0;
+
+  pSml->stableName = tcalloc(TSDB_TABLE_NAME_LEN + 1, 1);    // +1 to avoid 1772 line over write
+  if (pSml->stableName == NULL){
+      return TSDB_CODE_TSC_OUT_OF_MEMORY;
+  }
+  if (isdigit(*cur)) {
+    tscError("OTD:0x%"PRIx64" Metric cannnot start with digit", info->id);
+    tfree(pSml->stableName);
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+  }
+
+  while (*cur != '\0') {
+    if (len > TSDB_TABLE_NAME_LEN) {
+      tscError("OTD:0x%"PRIx64" Metric cannot exceeds 193 characters", info->id);
+      tfree(pSml->stableName);
+      return TSDB_CODE_TSC_INVALID_TABLE_ID_LENGTH;
+    }
+
+    if (*cur == ' ') {
+      break;
+    }
+
+    pSml->stableName[len] = *cur;
+    cur++;
+    len++;
+  }
+  if (len == 0 || *cur == '\0') {
+    tfree(pSml->stableName);
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+  }
+
+  pSml->stableName[len] = '\0';
+  *index = cur + 1;
+  tscDebug("OTD:0x%"PRIx64" Stable name in metric:%s|len:%d", info->id, pSml->stableName, len);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t parseTelnetTimeStamp(TAOS_SML_KV **pTS, int *num_kvs, const char **index, SSmlLinesInfo* info) {
+  //Timestamp must be the first KV to parse
+  assert(*num_kvs == 0);
+
+  const char *start, *cur;
+  int32_t ret = TSDB_CODE_SUCCESS;
+  int len = 0;
+  char key[] = OTS_TIMESTAMP_COLUMN_NAME;
+  char *value = NULL;
+
+  start = cur = *index;
+  //allocate fields for timestamp and value
+  *pTS = tcalloc(MAX_TELNET_FILEDS_NUM, sizeof(TAOS_SML_KV));
+
+  while(*cur != '\0') {
+    if (*cur == ' ') {
+      break;
+    }
+    cur++;
+    len++;
+  }
+
+  if (len > 0 && *cur != '\0') {
+    value = tcalloc(len + 1, 1);
+    memcpy(value, start, len);
+  } else {
+    tfree(*pTS);
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+  }
+
+  ret = convertSmlTimeStamp(*pTS, value, len, info);
+  if (ret) {
+    tfree(value);
+    tfree(*pTS);
+    return ret;
+  }
+  tfree(value);
+
+  (*pTS)->key = tcalloc(sizeof(key), 1);
+  memcpy((*pTS)->key, key, sizeof(key));
+
+  *num_kvs += 1;
+  *index = cur + 1;
+
+  return ret;
+}
+
+static int32_t parseTelnetMetricValue(TAOS_SML_KV **pKVs, int *num_kvs, const char **index, SSmlLinesInfo* info) {
+  //skip timestamp
+  TAOS_SML_KV *pVal = *pKVs + 1;
+  const char *start, *cur;
+  int32_t ret = TSDB_CODE_SUCCESS;
+  int len = 0;
+  char key[] = OTS_METRIC_VALUE_COLUMN_NAME;
+  char *value = NULL;
+
+  start = cur = *index;
+
+  while(*cur != '\0') {
+    if (*cur == ' ') {
+      break;
+    }
+    cur++;
+    len++;
+  }
+
+  if (len > 0 && *cur != '\0') {
+    value = tcalloc(len + 1, 1);
+    memcpy(value, start, len);
+  } else {
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+  }
+
+  if (!convertSmlValueType(pVal, value, len, info)) {
+    tscError("OTD:0x%"PRIx64" Failed to convert metric value string(%s) to any type",
+            info->id, value);
+    tfree(value);
+    return TSDB_CODE_TSC_INVALID_VALUE;
+  }
+  tfree(value);
+
+  pVal->key = tcalloc(sizeof(key), 1);
+  memcpy(pVal->key, key, sizeof(key));
+  *num_kvs += 1;
+
+  *index = cur + 1;
+  return ret;
+}
+
+static int32_t parseTelnetTagKey(TAOS_SML_KV *pKV, const char **index, SHashObj *pHash, SSmlLinesInfo* info) {
+  const char *cur = *index;
+  char key[TSDB_COL_NAME_LEN + 1];  // +1 to avoid key[len] over write
+  uint16_t len = 0;
+
+  //key field cannot start with digit
+  if (isdigit(*cur)) {
+    tscError("OTD:0x%"PRIx64" Tag key cannnot start with digit", info->id);
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+  }
+  while (*cur != '\0') {
+    if (len > TSDB_COL_NAME_LEN) {
+      tscError("OTD:0x%"PRIx64" Tag key cannot exceeds 65 characters", info->id);
+      return TSDB_CODE_TSC_INVALID_COLUMN_LENGTH;
+    }
+    if (*cur == '=') {
+      break;
+    }
+
+    key[len] = *cur;
+    cur++;
+    len++;
+  }
+  if (len == 0 || *cur == '\0') {
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+  }
+  key[len] = '\0';
+
+  if (checkDuplicateKey(key, pHash, info)) {
+    return TSDB_CODE_TSC_DUP_TAG_NAMES;
+  }
+
+  pKV->key = tcalloc(len + 1, 1);
+  memcpy(pKV->key, key, len + 1);
+  //tscDebug("OTD:0x%"PRIx64" Key:%s|len:%d", info->id, pKV->key, len);
+  *index = cur + 1;
+  return TSDB_CODE_SUCCESS;
+}
+
+
+static int32_t parseTelnetTagValue(TAOS_SML_KV *pKV, const char **index,
+                          bool *is_last_kv, SSmlLinesInfo* info) {
+  const char *start, *cur;
+  char *value = NULL;
+  uint16_t len = 0;
+  start = cur = *index;
+
+  while (1) {
+    // ',' or '\0' identifies a value
+    if (*cur == ',' || *cur == '\0') {
+      // '\0' indicates end of value
+      *is_last_kv = (*cur == '\0') ? true : false;
+      break;
+    }
+    cur++;
+    len++;
+  }
+
+  if (len == 0) {
+    tfree(pKV->key);
+    return TSDB_CODE_TSC_LINE_SYNTAX_ERROR;
+  }
+
+  value = tcalloc(len + 1, 1);
+  memcpy(value, start, len);
+  value[len] = '\0';
+  if (!convertSmlValueType(pKV, value, len, info)) {
+    tscError("OTD:0x%"PRIx64" Failed to convert sml value string(%s) to any type",
+            info->id, value);
+    //free previous alocated key field
+    tfree(pKV->key);
+    tfree(value);
+    return TSDB_CODE_TSC_INVALID_VALUE;
+  }
+  tfree(value);
+
+  *index = (*cur == '\0') ? cur : cur + 1;
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t parseTelnetTagKvs(TAOS_SML_KV **pKVs, int *num_kvs,
+                               const char **index,  char **childTableName,
+                               SHashObj *pHash, SSmlLinesInfo* info) {
+  const char *cur = *index;
+  int32_t ret = TSDB_CODE_SUCCESS;
+  TAOS_SML_KV *pkv;
+  bool is_last_kv = false;
+
+  int32_t capacity = 4;
+  *pKVs = tcalloc(capacity, sizeof(TAOS_SML_KV));
+  pkv = *pKVs;
+
+  while (*cur != '\0') {
+    ret = parseTelnetTagKey(pkv, &cur, pHash, info);
+    if (ret) {
+      tscError("OTD:0x%"PRIx64" Unable to parse key", info->id);
+      return ret;
+    }
+    ret = parseTelnetTagValue(pkv, &cur, &is_last_kv, info);
+    if (ret) {
+      tscError("OTD:0x%"PRIx64" Unable to parse value", info->id);
+      return ret;
+    }
+    if ((strcasecmp(pkv->key, "ID") == 0) && pkv->type == TSDB_DATA_TYPE_BINARY) {
+      ret = isValidChildTableName(pkv->value, pkv->length);
+      if (ret) {
+        return ret;
+      }
+      *childTableName = malloc(pkv->length + 1);
+      memcpy(*childTableName, pkv->value, pkv->length);
+      (*childTableName)[pkv->length] = '\0';
+      tfree(pkv->key);
+      tfree(pkv->value);
+    } else {
+      *num_kvs += 1;
+    }
+
+    if (is_last_kv) {
+      break;
+    }
+
+    //reallocate addtional memory for more kvs
+    if ((*num_kvs + 1) > capacity) {
+      TAOS_SML_KV *more_kvs = NULL;
+      capacity *= 3; capacity /= 2;
+      more_kvs = realloc(*pKVs, capacity * sizeof(TAOS_SML_KV));
+      if (!more_kvs) {
+        return TSDB_CODE_TSC_OUT_OF_MEMORY;
+      }
+      *pKVs = more_kvs;
+    }
+
+    //move pKV points to next TAOS_SML_KV block
+    pkv = *pKVs + *num_kvs;
+  }
+
+  return ret;
+}
+
+int32_t tscParseTelnetLine(const char* line, TAOS_SML_DATA_POINT* smlData, SSmlLinesInfo* info) {
+  const char* index = line;
+  int32_t ret = TSDB_CODE_SUCCESS;
+
+  //Parse metric
+  ret = parseTelnetMetric(smlData, &index, info);
+  if (ret) {
+    tscError("OTD:0x%"PRIx64" Unable to parse metric", info->id);
+    return ret;
+  }
+  tscDebug("OTD:0x%"PRIx64" Parse metric finished", info->id);
+
+  //Parse timestamp
+  ret = parseTelnetTimeStamp(&smlData->fields, &smlData->fieldNum, &index, info);
+  if (ret) {
+    tscError("OTD:0x%"PRIx64" Unable to parse timestamp", info->id);
+    return ret;
+  }
+  tscDebug("OTD:0x%"PRIx64" Parse timestamp finished", info->id);
+
+  //Parse value
+  ret = parseTelnetMetricValue(&smlData->fields, &smlData->fieldNum, &index, info);
+  if (ret) {
+    tscError("OTD:0x%"PRIx64" Unable to parse metric value", info->id);
+    return ret;
+  }
+  tscDebug("OTD:0x%"PRIx64" Parse metric value finished", info->id);
+
+  //Parse tagKVs
+  SHashObj *keyHashTable = taosHashInit(128, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, false);
+  ret = parseTelnetTagKvs(&smlData->tags, &smlData->tagNum, &index, &smlData->childTableName, keyHashTable, info);
+  if (ret) {
+    tscError("OTD:0x%"PRIx64" Unable to parse tags", info->id);
+    taosHashCleanup(keyHashTable);
+    return ret;
+  }
+  tscDebug("OTD:0x%"PRIx64" Parse tags finished", info->id);
+  taosHashCleanup(keyHashTable);
+
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t tscParseTelnetLines(char* lines[], int numLines, SArray* points, SArray* failedLines, SSmlLinesInfo* info) {
+  for (int32_t i = 0; i < numLines; ++i) {
+    TAOS_SML_DATA_POINT point = {0};
+    int32_t code = tscParseTelnetLine(lines[i], &point, info);
+    if (code != TSDB_CODE_SUCCESS) {
+      tscError("OTD:0x%"PRIx64" data point line parse failed. line %d : %s", info->id, i, lines[i]);
+      destroySmlDataPoint(&point);
+      return code;
+    } else {
+      tscDebug("OTD:0x%"PRIx64" data point line parse success. line %d", info->id, i);
+    }
+
+    taosArrayPush(points, &point);
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
+int taos_insert_telnet_lines(TAOS* taos, char* lines[], int numLines) {
+  int32_t code = 0;
+
+  SSmlLinesInfo* info = tcalloc(1, sizeof(SSmlLinesInfo));
+  info->id = genUID();
+
+  if (numLines <= 0 || numLines > 65536) {
+    tscError("OTD:0x%"PRIx64" taos_insert_telnet_lines numLines should be between 1 and 65536. numLines: %d", info->id, numLines);
+    tfree(info);
+    code = TSDB_CODE_TSC_APP_ERROR;
+    return code;
+  }
+
+  for (int i = 0; i < numLines; ++i) {
+    if (lines[i] == NULL) {
+      tscError("OTD:0x%"PRIx64" taos_insert_telnet_lines line %d is NULL", info->id, i);
+      tfree(info);
+      code = TSDB_CODE_TSC_APP_ERROR;
+      return code;
+    }
+  }
+
+  SArray* lpPoints = taosArrayInit(numLines, sizeof(TAOS_SML_DATA_POINT));
+  if (lpPoints == NULL) {
+    tscError("OTD:0x%"PRIx64" taos_insert_telnet_lines failed to allocate memory", info->id);
+    tfree(info);
+    return TSDB_CODE_TSC_OUT_OF_MEMORY;
+  }
+
+  tscDebug("OTD:0x%"PRIx64" taos_insert_telnet_lines begin inserting %d lines, first line: %s", info->id, numLines, lines[0]);
+  code = tscParseTelnetLines(lines, numLines, lpPoints, NULL, info);
+  size_t numPoints = taosArrayGetSize(lpPoints);
+
+  if (code != 0) {
+    goto cleanup;
+  }
+
+  TAOS_SML_DATA_POINT* points = TARRAY_GET_START(lpPoints);
+  code = tscSmlInsert(taos, points, (int)numPoints, info);
+  if (code != 0) {
+    tscError("OTD:0x%"PRIx64" taos_insert_telnet_lines error: %s", info->id, tstrerror((code)));
+  }
+
+cleanup:
+  tscDebug("OTD:0x%"PRIx64" taos_insert_telnet_lines finish inserting %d lines. code: %d", info->id, numLines, code);
+  points = TARRAY_GET_START(lpPoints);
+  numPoints = taosArrayGetSize(lpPoints);
+  for (int i=0; i<numPoints; ++i) {
+    destroySmlDataPoint(points+i);
+  }
+
+  taosArrayDestroy(lpPoints);
+
+  tfree(info);
+  return code;
+}
+
+int taos_telnet_insert(TAOS* taos, TAOS_SML_DATA_POINT* points, int numPoint) {
+  SSmlLinesInfo* info = tcalloc(1, sizeof(SSmlLinesInfo));
+  info->id = genUID();
+  int code = tscSmlInsert(taos, points, numPoint, info);
+  tfree(info);
+  return code;
+}

src/connector/python/taos/cinterface.py

@@ -827,6 +827,16 @@ def taos_insert_lines(connection, lines):
     if errno != 0:
         raise LinesError("insert lines error", errno)
 
+def taos_insert_telnet_lines(connection, lines):
+    # type: (c_void_p, list[str] | tuple(str)) -> None
+    num_of_lines = len(lines)
+    lines = (c_char_p(line.encode("utf-8")) for line in lines)
+    lines_type = ctypes.c_char_p * num_of_lines
+    p_lines = lines_type(*lines)
+    errno = _libtaos.taos_insert_telnet_lines(connection, p_lines, num_of_lines)
+    if errno != 0:
+        raise LinesError("insert telnet lines error", errno)
+
 
 class CTaosInterface(object):
     def __init__(self, config=None):

src/connector/python/taos/connection.py

@@ -145,6 +145,15 @@ class TaosConnection(object):
         """
         return taos_insert_lines(self._conn, lines)
 
+    def insert_telnet_lines(self, lines):
+        """OpenTSDB telnet style API format support
+
+        ## Example
+        cpu_load 1626056811855516532ns 2.0f32 id="tb1",host="host0",interface="eth0"
+
+        """
+        return taos_insert_telnet_lines(self._conn, lines)
+
     def cursor(self):
         # type: () -> TaosCursor
         """Return a new Cursor object using the connection."""

src/inc/taos.h

@@ -172,6 +172,8 @@ DLL_EXPORT int taos_load_table_info(TAOS *taos, const char* tableNameList);
 
 DLL_EXPORT int taos_insert_lines(TAOS* taos, char* lines[], int numLines);
 
+DLL_EXPORT int taos_insert_telnet_lines(TAOS* taos, char* lines[], int numLines);
+
 #ifdef __cplusplus
 }
 #endif

src/inc/taoserror.h

@@ -106,6 +106,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_TSC_DUP_COL_NAMES             TAOS_DEF_ERROR_CODE(0, 0x021D)  //"duplicated column names")
 #define TSDB_CODE_TSC_INVALID_TAG_LENGTH        TAOS_DEF_ERROR_CODE(0, 0x021E)  //"Invalid tag length")
 #define TSDB_CODE_TSC_INVALID_COLUMN_LENGTH     TAOS_DEF_ERROR_CODE(0, 0x021F)  //"Invalid column length")
+#define TSDB_CODE_TSC_DUP_TAG_NAMES             TAOS_DEF_ERROR_CODE(0, 0x0220)  //"duplicated tag names")
 
 // mnode
 #define TSDB_CODE_MND_MSG_NOT_PROCESSED         TAOS_DEF_ERROR_CODE(0, 0x0300)  //"Message not processed")

src/util/src/terror.c

@@ -112,9 +112,10 @@ TAOS_DEFINE_ERROR(TSDB_CODE_TSC_EXCEED_SQL_LIMIT,         "SQL statement too lon
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_FILE_EMPTY,               "File is empty")
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_LINE_SYNTAX_ERROR,        "Syntax error in Line")
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_NO_META_CACHED,           "No table meta cached")
-TAOS_DEFINE_ERROR(TSDB_CODE_TSC_DUP_COL_NAMES,             "duplicated column names")
-TAOS_DEFINE_ERROR(TSDB_CODE_TSC_INVALID_TAG_LENGTH,        "Invalid tag length")
-TAOS_DEFINE_ERROR(TSDB_CODE_TSC_INVALID_COLUMN_LENGTH,     "Invalid column length")
+TAOS_DEFINE_ERROR(TSDB_CODE_TSC_DUP_COL_NAMES,            "duplicated column names")
+TAOS_DEFINE_ERROR(TSDB_CODE_TSC_INVALID_TAG_LENGTH,       "Invalid tag length")
+TAOS_DEFINE_ERROR(TSDB_CODE_TSC_INVALID_COLUMN_LENGTH,    "Invalid column length")
+TAOS_DEFINE_ERROR(TSDB_CODE_TSC_DUP_TAG_NAMES,            "duplicated tag names")
 
 // mnode
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_MSG_NOT_PROCESSED,        "Message not processed")

tests/examples/c/apitest.c

 // sample code to verify all TDengine API
 // to compile: gcc -o apitest apitest.c -ltaos
 
+#include "taoserror.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <taos.h>
 #include <unistd.h>
 
+
 static void prepare_data(TAOS* taos) {
   TAOS_RES *result;
   result = taos_query(taos, "drop database if exists test;");
@@ -1014,6 +1017,186 @@ int32_t verify_schema_less(TAOS* taos) {
   return (code);
 }
 
+void verify_telnet_insert(TAOS* taos) {
+  TAOS_RES *result;
+
+  result = taos_query(taos, "drop database if exists test;");
+  taos_free_result(result);
+  usleep(100000);
+  result = taos_query(taos, "create database db precision 'ms';");
+  taos_free_result(result);
+  usleep(100000);
+
+  (void)taos_select_db(taos, "db");
+  int32_t code = 0;
+
+  /* metric */
+  char* lines0[] = {
+      "stb0_0 1626006833639000000ns 4i8 host=\"host0\",interface=\"eth0\"",
+      "stb0_1 1626006833639000000ns 4i8 host=\"host0\",interface=\"eth0\"",
+      "stb0_2 1626006833639000000ns 4i8 host=\"host0\",interface=\"eth0\"",
+  };
+  code = taos_insert_telnet_lines(taos, lines0, 3);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  /* timestamp */
+  char* lines1[] = {
+      "stb1 1626006833s 1i8 host=\"host0\"",
+      "stb1 1626006833639000000ns 2i8 host=\"host0\"",
+      "stb1 1626006833640000us 3i8 host=\"host0\"",
+      "stb1 1626006833641123 4i8 host=\"host0\"",
+      "stb1 1626006833651ms 5i8 host=\"host0\"",
+      "stb1 0 6i8 host=\"host0\"",
+  };
+  code = taos_insert_telnet_lines(taos, lines1, 6);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  /* metric value */
+  //tinyin
+  char* lines2_0[] = {
+      "stb2_0 1626006833651ms -127i8 host=\"host0\"",
+      "stb2_0 1626006833652ms 127i8 host=\"host0\""
+  };
+  code = taos_insert_telnet_lines(taos, lines2_0, 2);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  //smallint
+  char* lines2_1[] = {
+      "stb2_1 1626006833651ms -32767i16 host=\"host0\"",
+      "stb2_1 1626006833652ms 32767i16 host=\"host0\""
+  };
+  code = taos_insert_telnet_lines(taos, lines2_1, 2);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  //int
+  char* lines2_2[] = {
+      "stb2_2 1626006833651ms -2147483647i32 host=\"host0\"",
+      "stb2_2 1626006833652ms 2147483647i32 host=\"host0\""
+  };
+  code = taos_insert_telnet_lines(taos, lines2_2, 2);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  //bigint
+  char* lines2_3[] = {
+      "stb2_3 1626006833651ms -9223372036854775807i64 host=\"host0\"",
+      "stb2_3 1626006833652ms 9223372036854775807i64 host=\"host0\""
+  };
+  code = taos_insert_telnet_lines(taos, lines2_3, 2);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  //float
+  char* lines2_4[] = {
+      "stb2_4 1626006833610ms 3f32 host=\"host0\"",
+      "stb2_4 1626006833620ms -3f32 host=\"host0\"",
+      "stb2_4 1626006833630ms 3.4f32 host=\"host0\"",
+      "stb2_4 1626006833640ms -3.4f32 host=\"host0\"",
+      "stb2_4 1626006833650ms 3.4E10f32 host=\"host0\"",
+      "stb2_4 1626006833660ms -3.4e10f32 host=\"host0\"",
+      "stb2_4 1626006833670ms 3.4E+2f32 host=\"host0\"",
+      "stb2_4 1626006833680ms -3.4e-2f32 host=\"host0\"",
+      "stb2_4 1626006833690ms 3.15 host=\"host0\"",
+      "stb2_4 1626006833700ms 3.4E38f32 host=\"host0\"",
+      "stb2_4 1626006833710ms -3.4E38f32 host=\"host0\""
+  };
+  code = taos_insert_telnet_lines(taos, lines2_4, 11);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  //double
+  char* lines2_5[] = {
+      "stb2_5 1626006833610ms 3f64 host=\"host0\"",
+      "stb2_5 1626006833620ms -3f64 host=\"host0\"",
+      "stb2_5 1626006833630ms 3.4f64 host=\"host0\"",
+      "stb2_5 1626006833640ms -3.4f64 host=\"host0\"",
+      "stb2_5 1626006833650ms 3.4E10f64 host=\"host0\"",
+      "stb2_5 1626006833660ms -3.4e10f64 host=\"host0\"",
+      "stb2_5 1626006833670ms 3.4E+2f64 host=\"host0\"",
+      "stb2_5 1626006833680ms -3.4e-2f64 host=\"host0\"",
+      "stb2_5 1626006833690ms 1.7E308f64 host=\"host0\"",
+      "stb2_5 1626006833700ms -1.7E308f64 host=\"host0\""
+  };
+  code = taos_insert_telnet_lines(taos, lines2_5, 10);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  //bool
+  char* lines2_6[] = {
+      "stb2_6 1626006833610ms t host=\"host0\"",
+      "stb2_6 1626006833620ms T host=\"host0\"",
+      "stb2_6 1626006833630ms true host=\"host0\"",
+      "stb2_6 1626006833640ms True host=\"host0\"",
+      "stb2_6 1626006833650ms TRUE host=\"host0\"",
+      "stb2_6 1626006833660ms f host=\"host0\"",
+      "stb2_6 1626006833670ms F host=\"host0\"",
+      "stb2_6 1626006833680ms false host=\"host0\"",
+      "stb2_6 1626006833690ms False host=\"host0\"",
+      "stb2_6 1626006833700ms FALSE host=\"host0\""
+  };
+  code = taos_insert_telnet_lines(taos, lines2_6, 10);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  //binary
+  char* lines2_7[] = {
+      "stb2_7 1626006833610ms \"binary_val.!@#$%^&*\" host=\"host0\"",
+      "stb2_7 1626006833620ms \"binary_val.:;,./?|+-=\" host=\"host0\"",
+      "stb2_7 1626006833630ms \"binary_val.()[]{}<>\" host=\"host0\""
+  };
+  code = taos_insert_telnet_lines(taos, lines2_7, 3);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  //nchar
+  char* lines2_8[] = {
+      "stb2_8 1626006833610ms L\"nchar_val数值一\" host=\"host0\"",
+      "stb2_8 1626006833620ms L\"nchar_val数值二\" host=\"host0\"",
+  };
+  code = taos_insert_telnet_lines(taos, lines2_8, 2);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  /* tags */
+  //tag value types
+  char* lines3_0[] = {
+      "stb3_0 1626006833610ms 1 t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=3.4E38f32,t6=1.7E308f64,t7=true,t8=\"binary_val_1\",t9=L\"标签值1\"",
+      "stb3_0 1626006833610ms 2 t1=-127i8,t2=-32767i16,t3=-2147483647i32,t4=-9223372036854775807i64,t5=-3.4E38f32,t6=-1.7E308f64,t7=false,t8=\"binary_val_2\",t9=L\"标签值2\""
+  };
+  code = taos_insert_telnet_lines(taos, lines3_0, 2);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  //tag ID as child table name
+  char* lines3_1[] = {
+      "stb3_1 1626006833610ms 1 id=\"child_table1\",host=\"host1\"",
+      "stb3_1 1626006833610ms 2 host=\"host2\",iD=\"child_table2\"",
+      "stb3_1 1626006833610ms 3 ID=\"child_table3\",host=\"host3\""
+  };
+  code = taos_insert_telnet_lines(taos, lines3_1, 3);
+  if (code) {
+    printf("code: %d, %s.\n", code, tstrerror(code));
+  }
+
+  return;
+}
+
 int main(int argc, char *argv[]) {
   const char* host = "127.0.0.1";
   const char* user = "root";
@@ -1034,6 +1217,8 @@ int main(int argc, char *argv[]) {
   printf("************  verify schema-less  *************\n");
   verify_schema_less(taos);
 
+  printf("************  verify telnet-insert  *************\n");
+  verify_telnet_insert(taos);
 
   printf("************  verify query  *************\n");
   verify_query(taos);
@@ -1051,7 +1236,7 @@ int main(int argc, char *argv[]) {
   verify_prepare2(taos);
   printf("************ verify prepare3 *************\n");
   verify_prepare3(taos);
-  
+
   printf("************ verify stream  *************\n");
   verify_stream(taos);
   printf("done\n");

tests/pytest/insert/insertTelnetLines.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
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        self._conn = conn
+
+    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')
+
+
+        ### metric ###
+        print("============= step1 : test metric  ================")
+        lines0 = [
+                        "stb0_0 1626006833639000000ns 4i8 host=\"host0\",interface=\"eth0\"",
+                        "stb0_1 1626006833639000000ns 4i8 host=\"host0\",interface=\"eth0\"",
+                        "stb0_2 1626006833639000000ns 4i8 host=\"host0\",interface=\"eth0\"",
+                   ]
+
+        code = self._conn.insert_telnet_lines(lines0)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("show stables")
+        tdSql.checkRows(3)
+
+        tdSql.query("describe stb0_0")
+        tdSql.checkRows(4)
+
+        tdSql.query("describe stb0_1")
+        tdSql.checkRows(4)
+
+        tdSql.query("describe stb0_2")
+        tdSql.checkRows(4)
+
+        ### timestamp ###
+        print("============= step2 : test timestamp  ================")
+        lines1 = [
+                      "stb1 1626006833s 1i8 host=\"host0\"",
+                      "stb1 1626006833639000000ns 2i8 host=\"host0\"",
+                      "stb1 1626006833640000us 3i8 host=\"host0\"",
+                      "stb1 1626006833641123 4i8 host=\"host0\"",
+                      "stb1 1626006833651ms 5i8 host=\"host0\"",
+                      "stb1 0 6i8 host=\"host0\"",
+                    ]
+
+        code = self._conn.insert_telnet_lines(lines1)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb1")
+        tdSql.checkRows(6)
+
+        ### metric value ###
+        print("============= step3 : test metric value  ================")
+
+        #tinyint
+        lines2_0 = [
+                        "stb2_0 1626006833651ms -127i8 host=\"host0\"",
+                        "stb2_0 1626006833652ms 127i8 host=\"host0\""
+                     ]
+        code = self._conn.insert_telnet_lines(lines2_0)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb2_0")
+        tdSql.checkRows(2)
+
+        tdSql.query("describe stb2_0")
+        tdSql.checkRows(3)
+        tdSql.checkData(1, 1, "TINYINT")
+
+        #smallint
+        lines2_1 = [
+                        "stb2_1 1626006833651ms -32767i16 host=\"host0\"",
+                        "stb2_1 1626006833652ms 32767i16 host=\"host0\""
+                     ]
+        code = self._conn.insert_telnet_lines(lines2_1)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb2_1")
+        tdSql.checkRows(2)
+
+        tdSql.query("describe stb2_1")
+        tdSql.checkRows(3)
+        tdSql.checkData(1, 1, "SMALLINT")
+
+        #int
+        lines2_2 = [
+                        "stb2_2 1626006833651ms -2147483647i32 host=\"host0\"",
+                        "stb2_2 1626006833652ms 2147483647i32 host=\"host0\""
+                     ]
+
+        code = self._conn.insert_telnet_lines(lines2_2)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb2_2")
+        tdSql.checkRows(2)
+
+        tdSql.query("describe stb2_2")
+        tdSql.checkRows(3)
+        tdSql.checkData(1, 1, "INT")
+
+        #bigint
+        lines2_3 = [
+                        "stb2_3 1626006833651ms -9223372036854775807i64 host=\"host0\"",
+                        "stb2_3 1626006833652ms 9223372036854775807i64 host=\"host0\""
+                     ]
+
+        code = self._conn.insert_telnet_lines(lines2_3)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb2_3")
+        tdSql.checkRows(2)
+
+        tdSql.query("describe stb2_3")
+        tdSql.checkRows(3)
+        tdSql.checkData(1, 1, "BIGINT")
+
+        #float
+        lines2_4 = [
+                        "stb2_4 1626006833610ms 3f32 host=\"host0\"",
+                        "stb2_4 1626006833620ms -3f32 host=\"host0\"",
+                        "stb2_4 1626006833630ms 3.4f32 host=\"host0\"",
+                        "stb2_4 1626006833640ms -3.4f32 host=\"host0\"",
+                        "stb2_4 1626006833650ms 3.4E10f32 host=\"host0\"",
+                        "stb2_4 1626006833660ms -3.4e10f32 host=\"host0\"",
+                        "stb2_4 1626006833670ms 3.4E+2f32 host=\"host0\"",
+                        "stb2_4 1626006833680ms -3.4e-2f32 host=\"host0\"",
+                        "stb2_4 1626006833690ms 3.15 host=\"host0\"",
+                        "stb2_4 1626006833700ms 3.4E38f32 host=\"host0\"",
+                        "stb2_4 1626006833710ms -3.4E38f32 host=\"host0\""
+                     ]
+
+        code = self._conn.insert_telnet_lines(lines2_4)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb2_4")
+        tdSql.checkRows(11)
+
+        tdSql.query("describe stb2_4")
+        tdSql.checkRows(3)
+        tdSql.checkData(1, 1, "FLOAT")
+
+        #double
+        lines2_5 = [
+                        "stb2_5 1626006833610ms 3f64 host=\"host0\"",
+                        "stb2_5 1626006833620ms -3f64 host=\"host0\"",
+                        "stb2_5 1626006833630ms 3.4f64 host=\"host0\"",
+                        "stb2_5 1626006833640ms -3.4f64 host=\"host0\"",
+                        "stb2_5 1626006833650ms 3.4E10f64 host=\"host0\"",
+                        "stb2_5 1626006833660ms -3.4e10f64 host=\"host0\"",
+                        "stb2_5 1626006833670ms 3.4E+2f64 host=\"host0\"",
+                        "stb2_5 1626006833680ms -3.4e-2f64 host=\"host0\"",
+                        "stb2_5 1626006833690ms 1.7E308f64 host=\"host0\"",
+                        "stb2_5 1626006833700ms -1.7E308f64 host=\"host0\""
+                     ]
+
+        code = self._conn.insert_telnet_lines(lines2_5)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb2_5")
+        tdSql.checkRows(10)
+
+        tdSql.query("describe stb2_5")
+        tdSql.checkRows(3)
+        tdSql.checkData(1, 1, "DOUBLE")
+
+        #bool
+        lines2_6 = [
+                        "stb2_6 1626006833610ms t host=\"host0\"",
+                        "stb2_6 1626006833620ms T host=\"host0\"",
+                        "stb2_6 1626006833630ms true host=\"host0\"",
+                        "stb2_6 1626006833640ms True host=\"host0\"",
+                        "stb2_6 1626006833650ms TRUE host=\"host0\"",
+                        "stb2_6 1626006833660ms f host=\"host0\"",
+                        "stb2_6 1626006833670ms F host=\"host0\"",
+                        "stb2_6 1626006833680ms false host=\"host0\"",
+                        "stb2_6 1626006833690ms False host=\"host0\"",
+                        "stb2_6 1626006833700ms FALSE host=\"host0\""
+                     ]
+
+        code = self._conn.insert_telnet_lines(lines2_6)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb2_6")
+        tdSql.checkRows(10)
+
+        tdSql.query("describe stb2_6")
+        tdSql.checkRows(3)
+        tdSql.checkData(1, 1, "BOOL")
+
+        #binary
+        lines2_7 = [
+                        "stb2_7 1626006833610ms \"binary_val.!@#$%^&*\" host=\"host0\"",
+                        "stb2_7 1626006833620ms \"binary_val.:;,./?|+-=\" host=\"host0\"",
+                        "stb2_7 1626006833630ms \"binary_val.()[]{}<>\" host=\"host0\""
+                     ]
+
+        code = self._conn.insert_telnet_lines(lines2_7)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb2_7")
+        tdSql.checkRows(3)
+
+        tdSql.query("describe stb2_7")
+        tdSql.checkRows(3)
+        tdSql.checkData(1, 1, "BINARY")
+
+        #nchar
+        lines2_8 = [
+                        "stb2_8 1626006833610ms L\"nchar_val数值一\" host=\"host0\"",
+                        "stb2_8 1626006833620ms L\"nchar_val数值二\" host=\"host0\""
+                     ]
+
+        code = self._conn.insert_telnet_lines(lines2_8)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb2_8")
+        tdSql.checkRows(2)
+
+        tdSql.query("describe stb2_8")
+        tdSql.checkRows(3)
+        tdSql.checkData(1, 1, "NCHAR")
+
+        ### tags ###
+        print("============= step3 : test tags  ================")
+        #tag value types
+        lines3_0 = [
+                        "stb3_0 1626006833610ms 1 t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=3.4E38f32,t6=1.7E308f64,t7=true,t8=\"binary_val_1\",t9=L\"标签值1\"",
+                        "stb3_0 1626006833610ms 2 t1=-127i8,t2=-32767i16,t3=-2147483647i32,t4=-9223372036854775807i64,t5=-3.4E38f32,t6=-1.7E308f64,t7=false,t8=\"binary_val_2\",t9=L\"标签值2\""
+                     ]
+
+        code = self._conn.insert_telnet_lines(lines3_0)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb3_0")
+        tdSql.checkRows(2)
+
+        tdSql.query("describe stb3_0")
+        tdSql.checkRows(11)
+
+        tdSql.checkData(2, 1, "TINYINT")
+        tdSql.checkData(2, 3, "TAG")
+
+        tdSql.checkData(3, 1, "SMALLINT")
+        tdSql.checkData(3, 3, "TAG")
+
+        tdSql.checkData(4, 1, "INT")
+        tdSql.checkData(4, 3, "TAG")
+
+        tdSql.checkData(5, 1, "BIGINT")
+        tdSql.checkData(5, 3, "TAG")
+
+        tdSql.checkData(6, 1, "FLOAT")
+        tdSql.checkData(6, 3, "TAG")
+
+        tdSql.checkData(7, 1, "DOUBLE")
+        tdSql.checkData(7, 3, "TAG")
+
+        tdSql.checkData(8, 1, "BOOL")
+        tdSql.checkData(8, 3, "TAG")
+
+        tdSql.checkData(9, 1, "BINARY")
+        tdSql.checkData(9, 3, "TAG")
+
+        tdSql.checkData(10, 1, "NCHAR")
+        tdSql.checkData(10, 3, "TAG")
+
+
+        #tag ID as child table name
+        lines3_1 = [
+                        "stb3_1 1626006833610ms 1 id=\"child_table1\",host=\"host1\"",
+                        "stb3_1 1626006833610ms 2 host=\"host2\",iD=\"child_table2\"",
+                        "stb3_1 1626006833610ms 3 ID=\"child_table3\",host=\"host3\""
+                     ]
+
+        code = self._conn.insert_telnet_lines(lines3_1)
+        print("insert_telnet_lines result {}".format(code))
+
+        tdSql.query("select * from stb3_1")
+        tdSql.checkRows(3)
+
+        tdSql.query("show tables like \"child%\"")
+        tdSql.checkRows(3)
+
+        tdSql.checkData(0, 0, "child_table1")
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())