diff --git a/source/common/src/tdataformat.c b/source/common/src/tdataformat.c
index f39b20b9347e7f1a441cd51d01c5297ebafef024..87e3cf0c2419b6310a1e9daf2362f3d1fff5449b 100644
--- a/source/common/src/tdataformat.c
+++ b/source/common/src/tdataformat.c
@@ -431,6 +431,7 @@ SDataCols *tdDupDataCols(SDataCols *pDataCols, bool keepData) {
 
   for (int i = 0; i < pDataCols->numOfCols; i++) {
     pRet->cols[i].type = pDataCols->cols[i].type;
+    pRet->cols[i].bitmap = pDataCols->cols[i].bitmap;
     pRet->cols[i].colId = pDataCols->cols[i].colId;
     pRet->cols[i].bytes = pDataCols->cols[i].bytes;
     pRet->cols[i].offset = pDataCols->cols[i].offset;
diff --git a/source/libs/parser/inc/parAst.h b/source/libs/parser/inc/parAst.h
index 45216be6ef0785241e04c5277394b58492b8c9ca..eb33dec7210677c2071fb1130f12e1718ba43b0d 100644
--- a/source/libs/parser/inc/parAst.h
+++ b/source/libs/parser/inc/parAst.h
@@ -84,7 +84,7 @@ SToken getTokenFromRawExprNode(SAstCreateContext* pCxt, SNode* pNode);
 SNodeList* createNodeList(SAstCreateContext* pCxt, SNode* pNode);
 SNodeList* addNodeToList(SAstCreateContext* pCxt, SNodeList* pList, SNode* pNode);
 
-SNode* createColumnNode(SAstCreateContext* pCxt, const SToken* pTableAlias, const SToken* pColumnName);
+SNode* createColumnNode(SAstCreateContext* pCxt, SToken* pTableAlias, SToken* pColumnName);
 SNode* createValueNode(SAstCreateContext* pCxt, int32_t dataType, const SToken* pLiteral);
 SNode* createDurationValueNode(SAstCreateContext* pCxt, const SToken* pLiteral);
 SNode* createDefaultDatabaseCondValue(SAstCreateContext* pCxt);
@@ -95,7 +95,7 @@ SNode* createBetweenAnd(SAstCreateContext* pCxt, SNode* pExpr, SNode* pLeft, SNo
 SNode* createNotBetweenAnd(SAstCreateContext* pCxt, SNode* pExpr, SNode* pLeft, SNode* pRight);
 SNode* createFunctionNode(SAstCreateContext* pCxt, const SToken* pFuncName, SNodeList* pParameterList);
 SNode* createNodeListNode(SAstCreateContext* pCxt, SNodeList* pList);
-SNode* createRealTableNode(SAstCreateContext* pCxt, const SToken* pDbName, const SToken* pTableName, const SToken* pTableAlias);
+SNode* createRealTableNode(SAstCreateContext* pCxt, SToken* pDbName, SToken* pTableName, SToken* pTableAlias);
 SNode* createTempTableNode(SAstCreateContext* pCxt, SNode* pSubquery, const SToken* pTableAlias);
 SNode* createJoinTableNode(SAstCreateContext* pCxt, EJoinType type, SNode* pLeft, SNode* pRight, SNode* pJoinCond);
 SNode* createLimitNode(SAstCreateContext* pCxt, const SToken* pLimit, const SToken* pOffset);
@@ -120,9 +120,9 @@ SNode* createSetOperator(SAstCreateContext* pCxt, ESetOperatorType type, SNode*
 SNode* createDefaultDatabaseOptions(SAstCreateContext* pCxt);
 SNode* createDefaultAlterDatabaseOptions(SAstCreateContext* pCxt);
 SNode* setDatabaseOption(SAstCreateContext* pCxt, SNode* pOptions, EDatabaseOptionType type, const SToken* pVal);
-SNode* createCreateDatabaseStmt(SAstCreateContext* pCxt, bool ignoreExists, const SToken* pDbName, SNode* pOptions);
-SNode* createDropDatabaseStmt(SAstCreateContext* pCxt, bool ignoreNotExists, const SToken* pDbName);
-SNode* createAlterDatabaseStmt(SAstCreateContext* pCxt, const SToken* pDbName, SNode* pOptions);
+SNode* createCreateDatabaseStmt(SAstCreateContext* pCxt, bool ignoreExists, SToken* pDbName, SNode* pOptions);
+SNode* createDropDatabaseStmt(SAstCreateContext* pCxt, bool ignoreNotExists, SToken* pDbName);
+SNode* createAlterDatabaseStmt(SAstCreateContext* pCxt, SToken* pDbName, SNode* pOptions);
 SNode* createDefaultTableOptions(SAstCreateContext* pCxt);
 SNode* createDefaultAlterTableOptions(SAstCreateContext* pCxt);
 SNode* setTableOption(SAstCreateContext* pCxt, SNode* pOptions, ETableOptionType type, const SToken* pVal);
@@ -142,17 +142,17 @@ SNode* createAlterTableAddModifyCol(SAstCreateContext* pCxt, SNode* pRealTable,
 SNode* createAlterTableDropCol(SAstCreateContext* pCxt, SNode* pRealTable, int8_t alterType, const SToken* pColName);
 SNode* createAlterTableRenameCol(SAstCreateContext* pCxt, SNode* pRealTable, int8_t alterType, const SToken* pOldColName, const SToken* pNewColName);
 SNode* createAlterTableSetTag(SAstCreateContext* pCxt, SNode* pRealTable, const SToken* pTagName, SNode* pVal);
-SNode* createUseDatabaseStmt(SAstCreateContext* pCxt, const SToken* pDbName);
+SNode* createUseDatabaseStmt(SAstCreateContext* pCxt, SToken* pDbName);
 SNode* createShowStmt(SAstCreateContext* pCxt, ENodeType type, SNode* pDbName, SNode* pTbNamePattern);
-SNode* createCreateUserStmt(SAstCreateContext* pCxt, const SToken* pUserName, const SToken* pPassword);
-SNode* createAlterUserStmt(SAstCreateContext* pCxt, const SToken* pUserName, int8_t alterType, const SToken* pVal);
-SNode* createDropUserStmt(SAstCreateContext* pCxt, const SToken* pUserName);
+SNode* createCreateUserStmt(SAstCreateContext* pCxt, SToken* pUserName, const SToken* pPassword);
+SNode* createAlterUserStmt(SAstCreateContext* pCxt, SToken* pUserName, int8_t alterType, const SToken* pVal);
+SNode* createDropUserStmt(SAstCreateContext* pCxt, SToken* pUserName);
 SNode* createCreateDnodeStmt(SAstCreateContext* pCxt, const SToken* pFqdn, const SToken* pPort);
 SNode* createDropDnodeStmt(SAstCreateContext* pCxt, const SToken* pDnode);
 SNode* createAlterDnodeStmt(SAstCreateContext* pCxt, const SToken* pDnode, const SToken* pConfig, const SToken* pValue);
-SNode* createCreateIndexStmt(SAstCreateContext* pCxt, EIndexType type, const SToken* pIndexName, const SToken* pTableName, SNodeList* pCols, SNode* pOptions);
+SNode* createCreateIndexStmt(SAstCreateContext* pCxt, EIndexType type, SToken* pIndexName, SToken* pTableName, SNodeList* pCols, SNode* pOptions);
 SNode* createIndexOption(SAstCreateContext* pCxt, SNodeList* pFuncs, SNode* pInterval, SNode* pOffset, SNode* pSliding);
-SNode* createDropIndexStmt(SAstCreateContext* pCxt, const SToken* pIndexName, const SToken* pTableName);
+SNode* createDropIndexStmt(SAstCreateContext* pCxt, SToken* pIndexName, SToken* pTableName);
 SNode* createCreateQnodeStmt(SAstCreateContext* pCxt, const SToken* pDnodeId);
 SNode* createDropQnodeStmt(SAstCreateContext* pCxt, const SToken* pDnodeId);
 SNode* createCreateTopicStmt(SAstCreateContext* pCxt, bool ignoreExists, const SToken* pTopicName, SNode* pQuery, const SToken* pSubscribeDbName);
diff --git a/source/libs/parser/src/parAstCreater.c b/source/libs/parser/src/parAstCreater.c
index c4839f0004c7a33a876f1343a876e95e4e63b49d..fbf74b96a3b6fe3f1485fb3ce2887db69a8856df 100644
--- a/source/libs/parser/src/parAstCreater.c
+++ b/source/libs/parser/src/parAstCreater.c
@@ -331,7 +331,14 @@ void initAstCreateContext(SParseContext* pParseCxt, SAstCreateContext* pCxt) {
   initSetTableOptionFp();
 }
 
-static bool checkUserName(SAstCreateContext* pCxt, const SToken* pUserName) {
+static void trimEscape(SToken* pName) {
+  if (NULL != pName && pName->n > 1 && '`' == pName->z[0]) {
+    pName->z += 1;
+    pName->n -= 2;
+  }
+}
+
+static bool checkUserName(SAstCreateContext* pCxt, SToken* pUserName) {
   if (NULL == pUserName) {
     pCxt->valid = false;
   } else {
@@ -340,6 +347,7 @@ static bool checkUserName(SAstCreateContext* pCxt, const SToken* pUserName) {
       pCxt->valid = false;
     }
   }
+  trimEscape(pUserName);
   return pCxt->valid;
 }
 
@@ -412,38 +420,43 @@ static bool checkPort(SAstCreateContext* pCxt, const SToken* pPortToken, int32_t
   return pCxt->valid;
 }
 
-static bool checkDbName(SAstCreateContext* pCxt, const SToken* pDbName, bool query) {
+static bool checkDbName(SAstCreateContext* pCxt, SToken* pDbName, bool query) {
   if (NULL == pDbName) {
     pCxt->valid = (query ? NULL != pCxt->pQueryCxt->db : true);
   } else {
     pCxt->valid = pDbName->n < TSDB_DB_NAME_LEN ? true : false;
   }
+  trimEscape(pDbName);
   return pCxt->valid;
 }
 
-static bool checkTableName(SAstCreateContext* pCxt, const SToken* pTableName) {
+static bool checkTableName(SAstCreateContext* pCxt, SToken* pTableName) {
   if (NULL == pTableName) {
     pCxt->valid = true;
   } else {
     pCxt->valid = pTableName->n < TSDB_TABLE_NAME_LEN ? true : false;
   }
+  trimEscape(pTableName);
   return pCxt->valid;
 }
 
-static bool checkColumnName(SAstCreateContext* pCxt, const SToken* pColumnName) {
+static bool checkColumnName(SAstCreateContext* pCxt, SToken* pColumnName) {
   if (NULL == pColumnName) {
     pCxt->valid = true;
   } else {
     pCxt->valid = pColumnName->n < TSDB_COL_NAME_LEN ? true : false;
   }
+  trimEscape(pColumnName);
   return pCxt->valid;
 }
 
-static bool checkIndexName(SAstCreateContext* pCxt, const SToken* pIndexName) {
+static bool checkIndexName(SAstCreateContext* pCxt, SToken* pIndexName) {
   if (NULL == pIndexName) {
-    return false;
+    pCxt->valid = false;
+  } else {
+    pCxt->valid = pIndexName->n < TSDB_INDEX_NAME_LEN ? true : false;
   }
-  pCxt->valid = pIndexName->n < TSDB_INDEX_NAME_LEN ? true : false;
+  trimEscape(pIndexName);
   return pCxt->valid;
 }
 
@@ -498,7 +511,7 @@ SNodeList* addNodeToList(SAstCreateContext* pCxt, SNodeList* pList, SNode* pNode
   return pList;
 }
 
-SNode* createColumnNode(SAstCreateContext* pCxt, const SToken* pTableAlias, const SToken* pColumnName) {
+SNode* createColumnNode(SAstCreateContext* pCxt, SToken* pTableAlias, SToken* pColumnName) {
   if (!checkTableName(pCxt, pTableAlias) || !checkColumnName(pCxt, pColumnName)) {
     return NULL;
   }
@@ -603,8 +616,8 @@ SNode* createNodeListNode(SAstCreateContext* pCxt, SNodeList* pList) {
   return (SNode*)list;
 }
 
-SNode* createRealTableNode(SAstCreateContext* pCxt, const SToken* pDbName, const SToken* pTableName, const SToken* pTableAlias) {
-  if (!checkDbName(pCxt, pDbName, true) || !checkTableName(pCxt, pTableName)) {
+SNode* createRealTableNode(SAstCreateContext* pCxt, SToken* pDbName, SToken* pTableName, SToken* pTableAlias) {
+  if (!checkDbName(pCxt, pDbName, true) || !checkTableName(pCxt, pTableName) || !checkTableName(pCxt, pTableAlias)) {
     return NULL;
   }
   SRealTableNode* realTable = (SRealTableNode*)nodesMakeNode(QUERY_NODE_REAL_TABLE);
@@ -620,7 +633,9 @@ SNode* createRealTableNode(SAstCreateContext* pCxt, const SToken* pDbName, const
     strncpy(realTable->table.tableAlias, pTableName->z, pTableName->n);
   }
   strncpy(realTable->table.tableName, pTableName->z, pTableName->n);
-  strcpy(realTable->useDbName, pCxt->pQueryCxt->db);
+  if (NULL != pCxt->pQueryCxt->db) {
+    strcpy(realTable->useDbName, pCxt->pQueryCxt->db);
+  }  
   return (SNode*)realTable;
 }
 
@@ -839,7 +854,7 @@ SNode* setDatabaseOption(SAstCreateContext* pCxt, SNode* pOptions, EDatabaseOpti
   return (SNode*)setDbOptionFuncs[type](pCxt, (SDatabaseOptions*)pOptions, pVal);
 }
 
-SNode* createCreateDatabaseStmt(SAstCreateContext* pCxt, bool ignoreExists, const SToken* pDbName, SNode* pOptions) {
+SNode* createCreateDatabaseStmt(SAstCreateContext* pCxt, bool ignoreExists, SToken* pDbName, SNode* pOptions) {
   if (!checkDbName(pCxt, pDbName, false)) {
     return NULL;
   }
@@ -851,7 +866,7 @@ SNode* createCreateDatabaseStmt(SAstCreateContext* pCxt, bool ignoreExists, cons
   return (SNode*)pStmt;
 }
 
-SNode* createDropDatabaseStmt(SAstCreateContext* pCxt, bool ignoreNotExists, const SToken* pDbName) {
+SNode* createDropDatabaseStmt(SAstCreateContext* pCxt, bool ignoreNotExists, SToken* pDbName) {
   if (!checkDbName(pCxt, pDbName, false)) {
     return NULL;
   }
@@ -862,7 +877,7 @@ SNode* createDropDatabaseStmt(SAstCreateContext* pCxt, bool ignoreNotExists, con
   return (SNode*)pStmt;
 }
 
-SNode* createAlterDatabaseStmt(SAstCreateContext* pCxt, const SToken* pDbName, SNode* pOptions) {
+SNode* createAlterDatabaseStmt(SAstCreateContext* pCxt, SToken* pDbName, SNode* pOptions) {
   if (!checkDbName(pCxt, pDbName, false)) {
     return NULL;
   }
@@ -1031,7 +1046,10 @@ SNode* createAlterTableSetTag(SAstCreateContext* pCxt, SNode* pRealTable, const
   return (SNode*)pStmt;
 }
 
-SNode* createUseDatabaseStmt(SAstCreateContext* pCxt, const SToken* pDbName) {
+SNode* createUseDatabaseStmt(SAstCreateContext* pCxt, SToken* pDbName) {
+  if (!checkDbName(pCxt, pDbName, false)) {
+    return NULL;
+  }
   SUseDatabaseStmt* pStmt = (SUseDatabaseStmt*)nodesMakeNode(QUERY_NODE_USE_DATABASE_STMT);
   CHECK_OUT_OF_MEM(pStmt);
   strncpy(pStmt->dbName, pDbName->z, pDbName->n);
@@ -1055,7 +1073,7 @@ SNode* createShowStmt(SAstCreateContext* pCxt, ENodeType type, SNode* pDbName, S
   return (SNode*)pStmt;
 }
 
-SNode* createCreateUserStmt(SAstCreateContext* pCxt, const SToken* pUserName, const SToken* pPassword) {
+SNode* createCreateUserStmt(SAstCreateContext* pCxt, SToken* pUserName, const SToken* pPassword) {
   char password[TSDB_USET_PASSWORD_LEN] = {0};
   if (!checkUserName(pCxt, pUserName) || !checkPassword(pCxt, pPassword, password)) {
     return NULL;
@@ -1067,7 +1085,7 @@ SNode* createCreateUserStmt(SAstCreateContext* pCxt, const SToken* pUserName, co
   return (SNode*)pStmt;
 }
 
-SNode* createAlterUserStmt(SAstCreateContext* pCxt, const SToken* pUserName, int8_t alterType, const SToken* pVal) {
+SNode* createAlterUserStmt(SAstCreateContext* pCxt, SToken* pUserName, int8_t alterType, const SToken* pVal) {
   if (!checkUserName(pCxt, pUserName)) {
     return NULL;
   }
@@ -1086,7 +1104,7 @@ SNode* createAlterUserStmt(SAstCreateContext* pCxt, const SToken* pUserName, int
   return (SNode*)pStmt;
 }
 
-SNode* createDropUserStmt(SAstCreateContext* pCxt, const SToken* pUserName) {
+SNode* createDropUserStmt(SAstCreateContext* pCxt, SToken* pUserName) {
   if (!checkUserName(pCxt, pUserName)) {
     return NULL;
   }
@@ -1142,7 +1160,7 @@ SNode* createAlterDnodeStmt(SAstCreateContext* pCxt, const SToken* pDnode, const
   return (SNode*)pStmt;
 }
 
-SNode* createCreateIndexStmt(SAstCreateContext* pCxt, EIndexType type, const SToken* pIndexName, const SToken* pTableName, SNodeList* pCols, SNode* pOptions) {
+SNode* createCreateIndexStmt(SAstCreateContext* pCxt, EIndexType type, SToken* pIndexName, SToken* pTableName, SNodeList* pCols, SNode* pOptions) {
   if (!checkIndexName(pCxt, pIndexName) || !checkTableName(pCxt, pTableName)) {
     return NULL;
   }
@@ -1166,7 +1184,7 @@ SNode* createIndexOption(SAstCreateContext* pCxt, SNodeList* pFuncs, SNode* pInt
   return (SNode*)pOptions;
 }
 
-SNode* createDropIndexStmt(SAstCreateContext* pCxt, const SToken* pIndexName, const SToken* pTableName) {
+SNode* createDropIndexStmt(SAstCreateContext* pCxt, SToken* pIndexName, SToken* pTableName) {
   if (!checkIndexName(pCxt, pIndexName) || !checkTableName(pCxt, pTableName)) {
     return NULL;
   }
diff --git a/source/util/src/tutil.c b/source/util/src/tutil.c
index 7bd671a56ca42f9be79e123af734f1ba19ea83d6..dc982596ada00621c583046c89e3ad0046f204be 100644
--- a/source/util/src/tutil.c
+++ b/source/util/src/tutil.c
@@ -233,7 +233,7 @@ char *strntolower(char *dst, const char *src, int32_t n) {
       }
     } else if (c >= 'A' && c <= 'Z') {
       c -= 'A' - 'a';
-    } else if (c == '\'' || c == '"') {
+    } else if (c == '\'' || c == '"' || c == '`') {
       quote = c;
     }
     *p++ = c;
diff --git a/tests/script/tsim/insert/backquote.sim b/tests/script/tsim/insert/backquote.sim
new file mode 100644
index 0000000000000000000000000000000000000000..59191fa2a5680f4de91fe2b9f4cebd4d3392a934
--- /dev/null
+++ b/tests/script/tsim/insert/backquote.sim
@@ -0,0 +1,343 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sleep 50
+sql connect
+
+print =============== create database
+sql create database `database`
+sql create database `DataBase`
+sql show databases
+print rows: $rows 
+print $data00  $data01
+print $data10  $data11 
+print $data20  $data21
+if $rows != 3 then 
+  return -1
+endi
+if $data00 != database then 
+  return -1
+endi
+if $data10 != DataBase then 
+  return -1
+endi
+if $data20 != information_schema then 
+  return -1
+endi
+
+$dbCnt = 0
+while $dbCnt < 2
+    if $dbCnt == 0 then 
+        sql use `database`
+    else 
+        sql use `DataBase`
+    endi
+    
+    $dbCnt = $dbCnt + 1
+
+    print =============== create super table, include all type
+    sql create table `stable` (`timestamp` timestamp, `int` int, `binary` binary(16), `nchar` nchar(16)) tags (`float` float, `Binary` binary(16), `Nchar` nchar(16))
+    sql create table `Stable` (`timestamp` timestamp, `int` int, `Binary` binary(32), `Nchar` nchar(32)) tags (`float` float, `binary` binary(16), `nchar` nchar(16))
+    
+    sql show stables
+    print rows: $rows 
+    print $data00  $data01
+    print $data10  $data11
+    if $rows != 2 then 
+      return -1
+    endi
+    if $data00 != Stable then 
+      return -1
+    endi
+    if $data10 != stable then 
+      return -1
+    endi
+    
+    print =============== create child table
+    sql create table `table` using `stable` tags(100.0, 'stable+table', 'stable+table')
+    sql create table `Table` using `stable` tags(100.1, 'stable+Table', 'stable+Table')
+    
+    sql create table `TAble` using `Stable` tags(100.0, 'Stable+TAble', 'Stable+TAble')
+    sql create table `TABle` using `Stable` tags(100.1, 'Stable+TABle', 'Stable+TABle')    
+   
+    sql show tables
+    print rows: $rows 
+    print $data00  $data01
+    print $data10  $data11
+    print $data20  $data21
+    print $data30  $data31
+    if $rows != 4 then 
+      return -1
+    endi
+    
+    print =============== insert data
+    sql insert into `table` values(now+0s, 10, 'table', 'table')(now+1s, 11, 'table', 'table')
+    sql insert into `Table` values(now+0s, 20, 'Table', 'Table')(now+1s, 21, 'Table', 'Table')
+    sql insert into `TAble` values(now+0s, 30, 'TAble', 'TAble')(now+1s, 31, 'TAble', 'TAble')
+    sql insert into `TABle` values(now+0s, 40, 'TABle', 'TABle')(now+4s, 41, 'TABle', 'TABle')
+    
+    print =============== query data
+    sql select * from `table`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    print $data10 $data11 $data12 $data13
+    if $rows != 2 then 
+      return -1
+    endi    
+    if $data01 != 10 then 
+      return -1
+    endi    
+    if $data02 != table then 
+      return -1
+    endi    
+    if $data03 != table then 
+      return -1
+    endi
+    
+    sql select * from `Table`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    print $data10 $data11 $data12 $data13
+    if $rows != 2 then 
+      return -1
+    endi    
+    if $data01 != 20 then 
+      return -1
+    endi    
+    if $data02 != Table then 
+      return -1
+    endi    
+    if $data03 != Table then 
+      return -1
+    endi
+    
+    sql select * from `TAble`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    print $data10 $data11 $data12 $data13
+    if $rows != 2 then 
+      return -1
+    endi    
+    if $data01 != 30 then 
+      return -1
+    endi    
+    if $data02 != TAble then 
+      return -1
+    endi    
+    if $data03 != TAble then 
+      return -1
+    endi
+    
+    sql select * from `TABle`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    print $data10 $data11 $data12 $data13
+    if $rows != 2 then 
+      return -1
+    endi    
+    if $data01 != 40 then 
+      return -1
+    endi    
+    if $data02 != TABle then 
+      return -1
+    endi    
+    if $data03 != TABle then 
+      return -1
+    endi
+    
+    print =============== query data from st, but not support select * from super table, waiting fix
+    sql select count(*) from `stable`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    if $rows != 1 then 
+      return -1
+    endi        
+    if $data00 != 4 then 
+      return -1
+    endi 
+    sql select count(*) from `Stable`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    if $rows != 1 then 
+      return -1
+    endi        
+    if $data00 != 4 then 
+      return -1
+    endi     
+    #sql select * from st
+    #if $rows != 4 then 
+    #  return -1
+    #endi
+
+endw
+
+print =============== stop and restart taosd
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/exec.sh -n dnode1 -s start
+
+$loop_cnt = 0
+check_dnode_ready:
+	$loop_cnt = $loop_cnt + 1
+	sleep 100
+	if $loop_cnt == 10 then
+	  print ====> dnode not ready!
+		return -1
+	endi
+sql show dnodes
+print ===> $rows $data00 $data01 $data02 $data03 $data04 $data05
+if $data00 != 1 then
+  return -1
+endi
+if $data04 != ready then
+  goto check_dnode_ready
+endi
+
+sql show databases
+print rows: $rows 
+print $data00  $data01
+print $data10  $data11 
+print $data20  $data21
+if $rows != 3 then 
+  return -1
+endi
+if $data00 != database then 
+  return -1
+endi
+if $data10 != DataBase then 
+  return -1
+endi
+if $data20 != information_schema then 
+  return -1
+endi
+
+$dbCnt = 0
+while $dbCnt < 2
+    if $dbCnt == 0 then 
+        sql use `database`
+    else 
+        sql use `DataBase`
+    endi
+    
+    $dbCnt = $dbCnt + 1
+
+    sql show stables
+    print rows: $rows 
+    print $data00  $data01
+    print $data10  $data11
+    if $rows != 2 then 
+      return -1
+    endi
+    if $data00 != Stable then 
+      return -1
+    endi
+    if $data10 != stable then 
+      return -1
+    endi
+  
+    sql show tables
+    print rows: $rows 
+    print $data00  $data01
+    print $data10  $data11
+    print $data20  $data21
+    print $data30  $data31
+    if $rows != 4 then 
+      return -1
+    endi
+    
+    print =============== query data
+    sql select * from `table`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    print $data10 $data11 $data12 $data13
+    if $rows != 2 then 
+      return -1
+    endi    
+    if $data01 != 10 then 
+      return -1
+    endi    
+    if $data02 != table then 
+      return -1
+    endi    
+    if $data03 != table then 
+      return -1
+    endi
+    
+    sql select * from `Table`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    print $data10 $data11 $data12 $data13
+    if $rows != 2 then 
+      return -1
+    endi    
+    if $data01 != 20 then 
+      return -1
+    endi    
+    if $data02 != Table then 
+      return -1
+    endi    
+    if $data03 != Table then 
+      return -1
+    endi
+    
+    sql select * from `TAble`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    print $data10 $data11 $data12 $data13
+    if $rows != 2 then 
+      return -1
+    endi    
+    if $data01 != 30 then 
+      return -1
+    endi    
+    if $data02 != TAble then 
+      return -1
+    endi    
+    if $data03 != TAble then 
+      return -1
+    endi
+    
+    sql select * from `TABle`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    print $data10 $data11 $data12 $data13
+    if $rows != 2 then 
+      return -1
+    endi    
+    if $data01 != 40 then 
+      return -1
+    endi    
+    if $data02 != TABle then 
+      return -1
+    endi    
+    if $data03 != TABle then 
+      return -1
+    endi
+    
+    print =============== query data from st, but not support select * from super table, waiting fix
+    sql select count(*) from `stable`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    if $rows != 1 then 
+      return -1
+    endi        
+    if $data00 != 4 then 
+      return -1
+    endi 
+    sql select count(*) from `Stable`
+    print rows: $rows 
+    print $data00 $data01 $data02 $data03
+    if $rows != 1 then 
+      return -1
+    endi        
+    if $data00 != 4 then 
+      return -1
+    endi     
+    #sql select * from st
+    #if $rows != 4 then 
+    #  return -1
+    #endi
+
+endw
+
+
+#system sh/exec.sh -n dnode1 -s stop -x SIGINT
diff --git a/tests/script/tsim/insert/basic0.sim b/tests/script/tsim/insert/basic0.sim
index 50c64a660d9e9e0f0ac7d6e175ea585d52e30b5e..8592624cf3113fe46db5dbc668b45aaa256ce512 100644
--- a/tests/script/tsim/insert/basic0.sim
+++ b/tests/script/tsim/insert/basic0.sim
@@ -51,7 +51,14 @@ sql insert into ct3 values('2021-01-01 00:00:00.000', 10, 2.0, 3.0)
 #===================================================================
 print =============== query data from child table
 sql select * from ct1
-
+print rows: $rows 
+print $data00  $data01
+print $data10  $data11 
+print $data20  $data21
+print $data30  $data31
+print $data40  $data41
+print $data50  $data51
+print $data60  $data61
 if $rows != 7 then
   return -1
 endi
diff --git a/tests/script/tsim/insert/basic1.sim b/tests/script/tsim/insert/basic1.sim
index 3fc635532ac409000988808249d0310b7096c5e7..131044ac68e5269cd70393cd72c1cb0cbfd8ea3a 100644
--- a/tests/script/tsim/insert/basic1.sim
+++ b/tests/script/tsim/insert/basic1.sim
@@ -7,7 +7,7 @@ sql connect
 print =============== create database
 sql create database d1
 sql show databases
-if $rows != 1 then 
+if $rows != 2 then 
   return -1
 endi
 
@@ -46,6 +46,11 @@ sql insert into c1 values(now+0s, true, -1, -2, -3, -4, -6.0, -7.0, 'child tbl 1
 
 print =============== query data
 sql select * from c1
+print rows: $rows 
+print $data00  $data01
+print $data10  $data11 
+print $data20  $data21
+print $data30  $data31
 if $rows != 4 then 
   return -1
 endi
@@ -62,19 +67,40 @@ if $data03 != -2 then
   return -1
 endi
 
-print =============== query data from st
-sql select * from st
-if $rows != 4 then 
-  return -1
-endi
+print =============== query data from st, but not support select * from super table, waiting fix
+#sql select * from st
+#if $rows != 4 then 
+#  return -1
+#endi
 
 print =============== stop and restart taosd
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
 system sh/exec.sh -n dnode1 -s start
 
-sleep 2000
+$loop_cnt = 0
+check_dnode_ready:
+	$loop_cnt = $loop_cnt + 1
+	sleep 100
+	if $loop_cnt == 10 then
+	  print ====> dnode not ready!
+		return -1
+	endi
+sql show dnodes
+print ===> $rows $data00 $data01 $data02 $data03 $data04 $data05
+if $data00 != 1 then
+  return -1
+endi
+if $data04 != ready then
+  goto check_dnode_ready
+endi
+
 print =============== query data
 sql select * from c1
+print rows: $rows 
+print $data00  $data01
+print $data10  $data11 
+print $data20  $data21
+print $data30  $data31
 if $rows != 4 then 
   return -1
 endi
@@ -91,4 +117,10 @@ if $data03 != -2 then
   return -1
 endi
 
+print =============== query data from st, but not support select * from super table, waiting fix
+#sql select * from st
+#if $rows != 4 then 
+#  return -1
+#endi
+
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
diff --git a/tests/script/tsim/testCaseSuite.sim b/tests/script/tsim/testCaseSuite.sim
new file mode 100644
index 0000000000000000000000000000000000000000..88f1911a2b6799873dd30faeacdb7557a3a155a9
--- /dev/null
+++ b/tests/script/tsim/testCaseSuite.sim
@@ -0,0 +1,18 @@
+
+run tsim/db/basic1.sim
+run tsim/db/basic6.sim
+run tsim/db/basic7.sim
+run tsim/db/error1.sim
+
+run tsim/dnode/basic1.sim
+
+run tsim/insert/basic0.sim
+run tsim/insert/basic1.sim
+run tsim/insert/null.sim
+
+run tsim/query/interval-offset.sim
+run tsim/query/interval.sim
+
+run tsim/table/basic1.sim
+
+run tsim/user/basic1.sim