diff --git a/src/client/inc/tscUtil.h b/src/client/inc/tscUtil.h
index e4857dd18d90c4326d5ab7bb6333707445a09d3e..b3e05cb0cafcd2bc68b9887e44272bf063acbbb7 100644
--- a/src/client/inc/tscUtil.h
+++ b/src/client/inc/tscUtil.h
@@ -132,10 +132,7 @@ bool tscIsSelectivityWithTagQuery(SSqlCmd* pCmd);
 void tscAddSpecialColumnForSelect(SQueryInfo* pQueryInfo, int32_t outputColIndex, int16_t functionId, SColumnIndex* pIndex,
                                   SSchema* pColSchema, int16_t isTag);
 
-//void addRequiredTagColumn(SQueryInfo* pQueryInfo, int32_t tagColIndex, int32_t tableIndex);
-void addRequiredTagColumn(STableMetaInfo* pTableMetaInfo, SColumnIndex* index);
-
-int32_t tscSetTableId(STableMetaInfo* pTableMetaInfo, SSQLToken* pzTableName, SSqlObj* pSql);
+int32_t tscSetTableFullName(STableMetaInfo* pTableMetaInfo, SSQLToken* pzTableName, SSqlObj* pSql);
 void    tscClearInterpInfo(SQueryInfo* pQueryInfo);
 
 bool tscIsInsertData(char* sqlstr);
diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index 999d103c122a6b346b03db6d397928a1a01761be..4d5e20564eb6bb3c623b915baf8535aafde627db 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -793,7 +793,7 @@ static int32_t tscCheckIfCreateTable(char **sqlstr, SSqlObj *pSql) {
     }
 
     STableMetaInfo *pSTableMeterMetaInfo = tscGetMetaInfo(pQueryInfo, STABLE_INDEX);
-    tscSetTableId(pSTableMeterMetaInfo, &sToken, pSql);
+    tscSetTableFullName(pSTableMeterMetaInfo, &sToken, pSql);
 
     strncpy(pTag->name, pSTableMeterMetaInfo->name, TSDB_TABLE_ID_LEN);
     code = tscGetTableMeta(pSql, pSTableMeterMetaInfo);
@@ -834,9 +834,8 @@ static int32_t tscCheckIfCreateTable(char **sqlstr, SSqlObj *pSql) {
         sql += index;
 
         if (TK_STRING == sToken.type) {
-          sToken.n = strdequote(sToken.z);
-          strtrim(sToken.z);
-          sToken.n = (uint32_t)strlen(sToken.z);
+          strdequote(sToken.z);
+          sToken.n = strtrim(sToken.z);
         }
 
         if (sToken.type == TK_RP) {
@@ -948,7 +947,7 @@ static int32_t tscCheckIfCreateTable(char **sqlstr, SSqlObj *pSql) {
       return tscInvalidSQLErrMsg(pCmd->payload, "invalid table name", *sqlstr);
     }
 
-    int32_t ret = tscSetTableId(pTableMetaInfo, &tableToken, pSql);
+    int32_t ret = tscSetTableFullName(pTableMetaInfo, &tableToken, pSql);
     if (ret != TSDB_CODE_SUCCESS) {
       return ret;
     }
@@ -1091,7 +1090,7 @@ int doParseInsertSql(SSqlObj *pSql, char *str) {
       goto _error_clean;
     }
 
-    if ((code = tscSetTableId(pTableMetaInfo, &sToken, pSql)) != TSDB_CODE_SUCCESS) {
+    if ((code = tscSetTableFullName(pTableMetaInfo, &sToken, pSql)) != TSDB_CODE_SUCCESS) {
       goto _error_clean;
     }
 
@@ -1209,9 +1208,8 @@ int doParseInsertSql(SSqlObj *pSql, char *str) {
         str += index;
 
         if (TK_STRING == sToken.type) {
-          sToken.n = strdequote(sToken.z);
-          strtrim(sToken.z);
-          sToken.n = (uint32_t)strlen(sToken.z);
+          strdequote(sToken.z);
+          sToken.n = strtrim(sToken.z);
         }
 
         if (sToken.type == TK_RP) {
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 37af50dbce75d898c0832d788f9a372cd1ca26c9..88c3578633210fde49e1d259269bc9a9b9d4d8ab 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -163,8 +163,7 @@ static int32_t handlePassword(SSqlCmd* pCmd, SSQLToken* pPwd) {
   }
 
   strdequote(pPwd->z);
-  strtrim(pPwd->z);  // trim space before and after passwords
-  pPwd->n = strlen(pPwd->z);
+  pPwd->n = strtrim(pPwd->z);  // trim space before and after passwords
 
   if (pPwd->n <= 0) {
     return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
@@ -226,7 +225,7 @@ int32_t tscToSQLCmd(SSqlObj* pSql, struct SSqlInfo* pInfo) {
       } else if (pInfo->type == TSDB_SQL_DROP_TABLE) {
         assert(pInfo->pDCLInfo->nTokens == 1);
 
-        if (tscSetTableId(pTableMetaInfo, pzName, pSql) != TSDB_CODE_SUCCESS) {
+        if (tscSetTableFullName(pTableMetaInfo, pzName, pSql) != TSDB_CODE_SUCCESS) {
           return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
         }
       } else if (pInfo->type == TSDB_SQL_DROP_DNODE) {
@@ -353,7 +352,7 @@ int32_t tscToSQLCmd(SSqlObj* pSql, struct SSqlInfo* pInfo) {
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
       }
 
-      if (tscSetTableId(pTableMetaInfo, pToken, pSql) != TSDB_CODE_SUCCESS) {
+      if (tscSetTableFullName(pTableMetaInfo, pToken, pSql) != TSDB_CODE_SUCCESS) {
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
       }
 
@@ -686,7 +685,7 @@ int32_t parseSlidingClause(SQueryInfo* pQueryInfo, SQuerySQL* pQuerySql) {
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t tscSetTableId(STableMetaInfo* pTableMetaInfo, SSQLToken* pzTableName, SSqlObj* pSql) {
+int32_t tscSetTableFullName(STableMetaInfo* pTableMetaInfo, SSQLToken* pzTableName, SSqlObj* pSql) {
   const char* msg = "name too long";
 
   SSqlCmd* pCmd = &pSql->cmd;
@@ -4293,7 +4292,7 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
     return invalidSqlErrMsg(pQueryInfo->msg, msg1);
   }
 
-  if (tscSetTableId(pTableMetaInfo, &(pAlterSQL->name), pSql) != TSDB_CODE_SUCCESS) {
+  if (tscSetTableFullName(pTableMetaInfo, &(pAlterSQL->name), pSql) != TSDB_CODE_SUCCESS) {
     return invalidSqlErrMsg(pQueryInfo->msg, msg2);
   }
 
@@ -4645,8 +4644,7 @@ int32_t validateColumnName(char* name) {
 
   if (token.type == TK_STRING) {
     strdequote(token.z);
-    strtrim(token.z);
-    token.n = (uint32_t)strlen(token.z);
+    token.n = strtrim(token.z);
 
     int32_t k = tSQLGetToken(token.z, &token.type);
     if (k != token.n) {
@@ -5490,7 +5488,7 @@ int32_t doCheckForCreateTable(SSqlObj* pSql, int32_t subClauseIndex, SSqlInfo* p
     return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
   }
 
-  if (tscSetTableId(pTableMetaInfo, pzTableName, pSql) != TSDB_CODE_SUCCESS) {
+  if (tscSetTableFullName(pTableMetaInfo, pzTableName, pSql) != TSDB_CODE_SUCCESS) {
     return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
   }
 
@@ -5545,7 +5543,7 @@ int32_t doCheckForCreateFromStable(SSqlObj* pSql, SSqlInfo* pInfo) {
     return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
   }
 
-  if (tscSetTableId(pStableMeterMetaInfo, pToken, pSql) != TSDB_CODE_SUCCESS) {
+  if (tscSetTableFullName(pStableMeterMetaInfo, pToken, pSql) != TSDB_CODE_SUCCESS) {
     return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
   }
 
@@ -5591,7 +5589,7 @@ int32_t doCheckForCreateFromStable(SSqlObj* pSql, SSqlInfo* pInfo) {
   }
 
   STableMetaInfo* pTableMeterMetaInfo = tscGetMetaInfo(pQueryInfo, TABLE_INDEX);
-  ret = tscSetTableId(pTableMeterMetaInfo, &pInfo->pCreateTableInfo->name, pSql);
+  ret = tscSetTableFullName(pTableMeterMetaInfo, &pInfo->pCreateTableInfo->name, pSql);
   if (ret != TSDB_CODE_SUCCESS) {
     return ret;
   }
@@ -5634,7 +5632,7 @@ int32_t doCheckForStream(SSqlObj* pSql, SSqlInfo* pInfo) {
     return invalidSqlErrMsg(pQueryInfo->msg, msg1);
   }
 
-  if (tscSetTableId(pTableMetaInfo, &srcToken, pSql) != TSDB_CODE_SUCCESS) {
+  if (tscSetTableFullName(pTableMetaInfo, &srcToken, pSql) != TSDB_CODE_SUCCESS) {
     return invalidSqlErrMsg(pQueryInfo->msg, msg2);
   }
 
@@ -5665,7 +5663,7 @@ int32_t doCheckForStream(SSqlObj* pSql, SSqlInfo* pInfo) {
   }
 
   // set the created table[stream] name
-  if (tscSetTableId(pTableMetaInfo, pzTableName, pSql) != TSDB_CODE_SUCCESS) {
+  if (tscSetTableFullName(pTableMetaInfo, pzTableName, pSql) != TSDB_CODE_SUCCESS) {
     return invalidSqlErrMsg(pQueryInfo->msg, msg1);
   }
 
@@ -5774,7 +5772,7 @@ int32_t doCheckForQuery(SSqlObj* pSql, SQuerySQL* pQuerySql, int32_t index) {
     STableMetaInfo* pMeterInfo1 = tscGetMetaInfo(pQueryInfo, i);
 
     SSQLToken t = {.type = TSDB_DATA_TYPE_BINARY, .n = pTableItem->nLen, .z = pTableItem->pz};
-    if (tscSetTableId(pMeterInfo1, &t, pSql) != TSDB_CODE_SUCCESS) {
+    if (tscSetTableFullName(pMeterInfo1, &t, pSql) != TSDB_CODE_SUCCESS) {
       return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
     }
 
diff --git a/src/client/src/tscSql.c b/src/client/src/tscSql.c
index ba2b900dd51c454f28f1902f458eb14b7783054f..d3760811d610b5bf246d0781cecd7cbbab6eba1f 100644
--- a/src/client/src/tscSql.c
+++ b/src/client/src/tscSql.c
@@ -817,9 +817,7 @@ static int tscParseTblNameList(SSqlObj *pSql, const char *tblNameList, int32_t t
     tblName[len] = '\0';
 
     str = nextStr + 1;
-
-    strtrim(tblName);
-    len = (uint32_t)strlen(tblName);
+    len = strtrim(tblName);
 
     SSQLToken sToken = {.n = len, .type = TK_ID, .z = tblName};
     tSQLGetToken(tblName, &sToken.type);
@@ -831,7 +829,7 @@ static int tscParseTblNameList(SSqlObj *pSql, const char *tblNameList, int32_t t
       return code;
     }
 
-    if ((code = tscSetTableId(pTableMetaInfo, &sToken, pSql)) != TSDB_CODE_SUCCESS) {
+    if ((code = tscSetTableFullName(pTableMetaInfo, &sToken, pSql)) != TSDB_CODE_SUCCESS) {
       return code;
     }
 
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 3e7e0b9ed843c9718b559e20d2e7b00c58ecbb6a..efba7d8af9b1e47391e2e6badadad69e046bd3fc 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -1231,9 +1231,8 @@ void tscColumnListDestroy(SArray* pColumnList) {
  *
  */
 static int32_t validateQuoteToken(SSQLToken* pToken) {
-  pToken->n = strdequote(pToken->z);
-  strtrim(pToken->z);
-  pToken->n = (uint32_t)strlen(pToken->z);
+  strdequote(pToken->z);
+  pToken->n = strtrim(pToken->z);
 
   int32_t k = tSQLGetToken(pToken->z, &pToken->type);
 
@@ -1255,9 +1254,8 @@ int32_t tscValidateName(SSQLToken* pToken) {
   char* sep = strnchr(pToken->z, TS_PATH_DELIMITER[0], pToken->n, true);
   if (sep == NULL) {  // single part
     if (pToken->type == TK_STRING) {
-      pToken->n = strdequote(pToken->z);
-      strtrim(pToken->z);
-      pToken->n = (uint32_t)strlen(pToken->z);
+      strdequote(pToken->z);
+      pToken->n = strtrim(pToken->z);
 
       int len = tSQLGetToken(pToken->z, &pToken->type);
 
@@ -1282,8 +1280,7 @@ int32_t tscValidateName(SSQLToken* pToken) {
     char*   pStr = pToken->z;
 
     if (pToken->type == TK_SPACE) {
-      strtrim(pToken->z);
-      pToken->n = (uint32_t)strlen(pToken->z);
+      pToken->n = strtrim(pToken->z);
     }
 
     pToken->n = tSQLGetToken(pToken->z, &pToken->type);
diff --git a/src/inc/taosdef.h b/src/inc/taosdef.h
index 2aca057ba73666f3b3c4bbf4c56ddce27ce066fe..f83dd794d13bcf98225565cd5dce3be7089aa472 100644
--- a/src/inc/taosdef.h
+++ b/src/inc/taosdef.h
@@ -322,7 +322,7 @@ void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);
 #define TSDB_QUERY_TYPE_SUBQUERY                       0x02u
 #define TSDB_QUERY_TYPE_STABLE_SUBQUERY                0x04u     // two-stage subquery for super table
 
-#define TSDB_QUERY_TYPE_TABLE_QUERY                    0x08u     // query ordinary table; below only apply to client side
+#define TSDB_QUERY_TYPE_TABLE_QUERY                    0x08u    // query ordinary table; below only apply to client side
 #define TSDB_QUERY_TYPE_STABLE_QUERY                   0x10u    // query on super table
 #define TSDB_QUERY_TYPE_JOIN_QUERY                     0x20u    // join query
 #define TSDB_QUERY_TYPE_PROJECTION_QUERY               0x40u    // select *,columns... query
diff --git a/src/util/inc/tutil.h b/src/util/inc/tutil.h
index 984df2387957fdcc4f7255a85dbfc70b2f8ca250..f0c90c62fc285edddc0198c07a428c42c232efb8 100644
--- a/src/util/inc/tutil.h
+++ b/src/util/inc/tutil.h
@@ -113,7 +113,7 @@ extern "C" {
 
 int32_t strdequote(char *src);
 
-void strtrim(char *src);
+size_t strtrim(char *src);
 
 char *strnchr(char *haystack, char needle, int32_t len, bool skipquote);
 
diff --git a/src/util/src/tutil.c b/src/util/src/tutil.c
index 6bc60615ce785e5a66a483286a3e3036b65f9aee..6a5c8b6799f6a2ce3374e9a7a0ea18402d90af5b 100644
--- a/src/util/src/tutil.c
+++ b/src/util/src/tutil.c
@@ -60,7 +60,7 @@ int32_t strdequote(char *z) {
   return j + 1;  // only one quote, do nothing
 }
 
-void strtrim(char *z) {
+size_t strtrim(char *z) {
   int32_t i = 0;
   int32_t j = 0;
 
@@ -71,7 +71,7 @@ void strtrim(char *z) {
 
   if (z[j] == 0) {
     z[0] = 0;
-    return;
+    return 0;
   }
 
   delta = j;
@@ -89,9 +89,12 @@ void strtrim(char *z) {
 
   if (stop > 0) {
     z[stop - delta] = 0;
+    return (stop - delta);
   } else if (j != i) {
     z[i] = 0;
   }
+  
+  return i;
 }
 
 char **strsplit(char *z, const char *delim, int32_t *num) {
diff --git a/src/util/tests/stringTest.cpp b/src/util/tests/stringTest.cpp
index ef8df90e3eac8c4381cbc23cd5311b794b73d058..0dc1ee7a778f700c5e2d54f3dfe1325ceff06252 100644
--- a/src/util/tests/stringTest.cpp
+++ b/src/util/tests/stringTest.cpp
@@ -20,10 +20,10 @@ TEST(testCase, string_dequote_test) {
   EXPECT_STRCASEEQ(t1, "abc");
 
   char t21[] = " abc ";
-  strtrim(t21);
+  int32_t lx = strtrim(t21);
 
   EXPECT_STREQ("abc", t21);
-  EXPECT_EQ(3, strlen(t21));
+  EXPECT_EQ(3, lx);
 }
 
 TEST(testCase, string_replace_test) {