diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index 77ceb7e429..424e99760c 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -779,6 +779,7 @@ typedef struct {
   int8_t  cacheLastRow;
   int32_t numOfRetensions;
   SArray* pRetensions;
+  int8_t  schemaless;
 } SDbCfgRsp;
 
 int32_t tSerializeSDbCfgRsp(void* buf, int32_t bufLen, const SDbCfgRsp* pRsp);
diff --git a/include/libs/parser/parser.h b/include/libs/parser/parser.h
index ca825b9e2f..6abd1ffa6d 100644
--- a/include/libs/parser/parser.h
+++ b/include/libs/parser/parser.h
@@ -49,6 +49,7 @@ typedef struct SParseContext {
   const char*      pUser;
   bool             isSuperUser;
   bool             async;
+  int8_t           schemalessType;
 } SParseContext;
 
 int32_t qParseSql(SParseContext* pCxt, SQuery** pQuery);
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 4550bccbed..7335d174a4 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -675,6 +675,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_SML_INVALID_PROTOCOL_TYPE     TAOS_DEF_ERROR_CODE(0, 0x3000)
 #define TSDB_CODE_SML_INVALID_PRECISION_TYPE    TAOS_DEF_ERROR_CODE(0, 0x3001)
 #define TSDB_CODE_SML_INVALID_DATA              TAOS_DEF_ERROR_CODE(0, 0x3002)
+#define TSDB_CODE_SML_INVALID_DB_CONF           TAOS_DEF_ERROR_CODE(0, 0x3003)
 
 #ifdef __cplusplus
 }
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index a2305dd45d..3ff61eca25 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -151,6 +151,7 @@ typedef struct STscObj {
   int32_t       numOfReqs;  // number of sqlObj bound to this connection
   SAppInstInfo* pAppInfo;
   SHashObj*     pRequests;
+  int8_t        schemalessType;
 } STscObj;
 
 typedef struct SResultColumn {
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index 4f5f23b68b..19847d9aa2 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -161,6 +161,7 @@ void *createTscObj(const char *user, const char *auth, const char *db, int32_t c
 
   taosThreadMutexInit(&pObj->mutex, NULL);
   pObj->id = taosAddRef(clientConnRefPool, pObj);
+  pObj->schemalessType = 0;
 
   tscDebug("connObj created, 0x%" PRIx64, pObj->id);
   return pObj;
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index c4bf3b50bf..e7b4fb0657 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -176,6 +176,7 @@ int32_t parseSql(SRequestObj* pRequest, bool topicQuery, SQuery** pQuery, SStmtC
                        .pTransporter = pTscObj->pAppInfo->pTransporter,
                        .pStmtCb = pStmtCb,
                        .pUser = pTscObj->user,
+                       .schemalessType = pTscObj->schemalessType,
                        .isSuperUser = (0 == strcmp(pTscObj->user, TSDB_DEFAULT_USER))};
 
   cxt.mgmtEpSet = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index 7d623072d6..e77b9a9bd0 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -960,10 +960,10 @@ static int32_t smlParseInfluxString(const char* sql, SSmlLineInfo *elements, SSm
     return TSDB_CODE_SML_INVALID_DATA;
   }
   elements->colsLen = sql - elements->cols;
-  if(elements->colsLen == 0) {
-    smlBuildInvalidDataMsg(msg, "cols is empty", NULL);
-    return TSDB_CODE_SML_INVALID_DATA;
-  }
+//  if(elements->colsLen == 0) {
+//    smlBuildInvalidDataMsg(msg, "cols is empty", NULL);
+//    return TSDB_CODE_SML_INVALID_DATA;
+//  }
 
   // parse timestamp
   JUMP_SPACE(sql)
@@ -1124,7 +1124,7 @@ static int32_t smlParseTelnetString(SSmlHandle *info, const char* sql, SSmlTable
 }
 
 static int32_t smlParseCols(const char* data, int32_t len, SArray *cols, char *childTableName, bool isTag, SHashObj *dumplicateKey, SSmlMsgBuf *msg){
-  if(isTag && len == 0){
+  if(len == 0){
     return TSDB_CODE_SUCCESS;
   }
 
@@ -2318,6 +2318,28 @@ cleanup:
   return code;
 }
 
+static int32_t isSchemalessDb(SSmlHandle* info){
+  SName          name;
+  tNameSetDbName(&name, info->taos->acctId, info->taos->db, strlen(info->taos->db));
+  char dbFname[TSDB_DB_FNAME_LEN] = {0};
+  tNameGetFullDbName(&name, dbFname);
+  SDbCfgInfo pInfo = {0};
+  SEpSet ep = getEpSet_s(&info->taos->pAppInfo->mgmtEp);
+
+  int32_t code = catalogGetDBCfg(info->pCatalog, info->taos->pAppInfo->pTransporter, &ep, dbFname, &pInfo);
+  if (code != TSDB_CODE_SUCCESS) {
+    info->pRequest->code = code;
+    smlBuildInvalidDataMsg(&info->msgBuf, "catalogGetDBCfg error, code:", tstrerror(code));
+    return code;
+  }
+  if (!pInfo.schemaless){
+    info->pRequest->code = TSDB_CODE_SML_INVALID_DB_CONF;
+    smlBuildInvalidDataMsg(&info->msgBuf, "can not insert into schemaless db:", dbFname);
+    return TSDB_CODE_SML_INVALID_DB_CONF;
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
 /**
  * taos_schemaless_insert() parse and insert data points into database according to
  * different protocol.
@@ -2351,6 +2373,19 @@ TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int pr
     return (TAOS_RES*)request;
   }
 
+  info->taos->schemalessType = 1;
+  if(request->pDb == NULL){
+    request->code = TSDB_CODE_PAR_DB_NOT_SPECIFIED;
+    smlBuildInvalidDataMsg(&info->msgBuf, "Database not specified", NULL);
+    goto end;
+  }
+
+  if(isSchemalessDb(info) != TSDB_CODE_SUCCESS){
+    request->code = TSDB_CODE_SML_INVALID_DB_CONF;
+    smlBuildInvalidDataMsg(&info->msgBuf, "Cannot write data to a non schemaless database", NULL);
+    goto end;
+  }
+
   if (!lines) {
     request->code = TSDB_CODE_SML_INVALID_DATA;
     smlBuildInvalidDataMsg(&info->msgBuf, "lines is null", NULL);
@@ -2372,6 +2407,7 @@ TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int pr
   info->pRequest->code = smlProcess(info, lines, numLines);
 
 end:
+  uDebug("result:%s", info->msgBuf.buf);
   smlDestroyInfo(info);
   return (TAOS_RES*)request;
 }
diff --git a/source/client/test/smlTest.cpp b/source/client/test/smlTest.cpp
index 217699e360..4684df8418 100644
--- a/source/client/test/smlTest.cpp
+++ b/source/client/test/smlTest.cpp
@@ -1258,4 +1258,26 @@ TEST(testCase, sml_TD15742_Test) {
 
   destroyRequest(request);
   smlDestroyInfo(info);
-}
\ No newline at end of file
+}
+
+TEST(testCase, sml_params_Test) {
+  TAOS *taos = taos_connect("localhost", "root", "taosdata", NULL, 0);
+  ASSERT_NE(taos, nullptr);
+
+  TAOS_RES* pRes = taos_query(taos, "create database if not exists param");
+  taos_free_result(pRes);
+
+  const char *sql[] = {
+      "test_ms,t0=t c0=f 1626006833641",
+  };
+  TAOS_RES* res = taos_schemaless_insert(taos, (char**)sql, 1, TSDB_SML_LINE_PROTOCOL, TSDB_SML_TIMESTAMP_MILLI_SECONDS);
+  ASSERT_EQ(taos_errno(res), TSDB_CODE_PAR_DB_NOT_SPECIFIED);
+  taos_free_result(pRes);
+
+  pRes = taos_query(taos, "use param");
+  taos_free_result(pRes);
+
+  res = taos_schemaless_insert(taos, (char**)sql, 1, TSDB_SML_LINE_PROTOCOL, TSDB_SML_TIMESTAMP_MILLI_SECONDS);
+  ASSERT_EQ(taos_errno(res), TSDB_CODE_SML_INVALID_DB_CONF);
+  taos_free_result(pRes);
+}
diff --git a/source/common/src/systable.c b/source/common/src/systable.c
index b163ac32bf..948b50c01a 100644
--- a/source/common/src/systable.c
+++ b/source/common/src/systable.c
@@ -91,6 +91,8 @@ static const SSysDbTableSchema userDBSchema[] = {
     {.name = "precision", .bytes = 2 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
     {.name = "single_stable", .bytes = 1, .type = TSDB_DATA_TYPE_TINYINT},
     {.name = "status", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
+    {.name = "schemaless", .bytes = 1, .type = TSDB_DATA_TYPE_TINYINT},
+
     // {.name = "update", .bytes = 1, .type = TSDB_DATA_TYPE_TINYINT},  // disable update
 };
 
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 0f3eec01c6..9c6c532bcd 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -2278,6 +2278,7 @@ int32_t tSerializeSDbCfgRsp(void *buf, int32_t bufLen, const SDbCfgRsp *pRsp) {
     if (tEncodeI8(&encoder, pRetension->freqUnit) < 0) return -1;
     if (tEncodeI8(&encoder, pRetension->keepUnit) < 0) return -1;
   }
+  if (tEncodeI8(&encoder, pRsp->schemaless) < 0) return -1;
   tEndEncode(&encoder);
 
   int32_t tlen = encoder.pos;
@@ -2326,6 +2327,7 @@ int32_t tDeserializeSDbCfgRsp(void *buf, int32_t bufLen, SDbCfgRsp *pRsp) {
       return -1;
     }
   }
+  if (tDecodeI8(&decoder, &pRsp->schemaless) < 0) return -1;
   tEndDecode(&decoder);
 
   tDecoderClear(&decoder);
diff --git a/source/dnode/mnode/impl/inc/mndDef.h b/source/dnode/mnode/impl/inc/mndDef.h
index 2f7c357aef..83a36f4b0d 100644
--- a/source/dnode/mnode/impl/inc/mndDef.h
+++ b/source/dnode/mnode/impl/inc/mndDef.h
@@ -255,6 +255,7 @@ typedef struct {
   int8_t  hashMethod;  // default is 1
   int32_t numOfRetensions;
   SArray* pRetensions;
+  int8_t  schemaless;
 } SDbCfg;
 
 typedef struct {
diff --git a/source/dnode/mnode/impl/src/mndDb.c b/source/dnode/mnode/impl/src/mndDb.c
index c062a2c552..6d7a638c30 100644
--- a/source/dnode/mnode/impl/src/mndDb.c
+++ b/source/dnode/mnode/impl/src/mndDb.c
@@ -115,6 +115,7 @@ static SSdbRaw *mndDbActionEncode(SDbObj *pDb) {
     SDB_SET_INT8(pRaw, dataPos, pRetension->freqUnit, _OVER)
     SDB_SET_INT8(pRaw, dataPos, pRetension->keepUnit, _OVER)
   }
+  SDB_SET_INT8(pRaw, dataPos, pDb->cfg.schemaless, _OVER)
 
   SDB_SET_RESERVE(pRaw, dataPos, DB_RESERVE_SIZE, _OVER)
   SDB_SET_DATALEN(pRaw, dataPos, _OVER)
@@ -192,6 +193,7 @@ static SSdbRow *mndDbActionDecode(SSdbRaw *pRaw) {
       }
     }
   }
+  SDB_GET_INT8(pRaw, dataPos, &pDb->cfg.schemaless, _OVER)
 
   SDB_GET_RESERVE(pRaw, dataPos, DB_RESERVE_SIZE, _OVER)
   taosInitRWLatch(&pDb->lock);
@@ -380,6 +382,7 @@ static int32_t mndCheckDbCfg(SMnode *pMnode, SDbCfg *pCfg) {
   if (pCfg->replications < TSDB_MIN_DB_REPLICA || pCfg->replications > TSDB_MAX_DB_REPLICA) return -1;
   if (pCfg->replications != 1 && pCfg->replications != 3) return -1;
   if (pCfg->strict < TSDB_DB_STRICT_OFF || pCfg->strict > TSDB_DB_STRICT_ON) return -1;
+  if (pCfg->schemaless < TSDB_DB_SCHEMALESS_OFF || pCfg->schemaless > TSDB_DB_SCHEMALESS_ON) return -1;
   if (pCfg->cacheLastRow < TSDB_MIN_DB_CACHE_LAST_ROW || pCfg->cacheLastRow > TSDB_MAX_DB_CACHE_LAST_ROW) return -1;
   if (pCfg->hashMethod != 1) return -1;
   if (pCfg->replications > mndGetDnodeSize(pMnode)) {
@@ -411,6 +414,8 @@ static void mndSetDefaultDbCfg(SDbCfg *pCfg) {
   if (pCfg->strict < 0) pCfg->strict = TSDB_DEFAULT_DB_STRICT;
   if (pCfg->cacheLastRow < 0) pCfg->cacheLastRow = TSDB_DEFAULT_CACHE_LAST_ROW;
   if (pCfg->numOfRetensions < 0) pCfg->numOfRetensions = 0;
+  if (pCfg->schemaless < 0) pCfg->schemaless = TSDB_DB_SCHEMALESS_OFF;
+
 }
 
 static int32_t mndSetCreateDbRedoLogs(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SVgObj *pVgroups) {
@@ -521,6 +526,7 @@ static int32_t mndCreateDb(SMnode *pMnode, SRpcMsg *pReq, SCreateDbReq *pCreate,
       .strict = pCreate->strict,
       .cacheLastRow = pCreate->cacheLastRow,
       .hashMethod = 1,
+      .schemaless = pCreate->schemaless,
   };
 
   dbObj.cfg.numOfRetensions = pCreate->numOfRetensions;
@@ -899,6 +905,7 @@ static int32_t mndProcessGetDbCfgReq(SRpcMsg *pReq) {
   cfgRsp.cacheLastRow = pDb->cfg.cacheLastRow;
   cfgRsp.numOfRetensions = pDb->cfg.numOfRetensions;
   cfgRsp.pRetensions = pDb->cfg.pRetensions;
+  cfgRsp.schemaless = pDb->cfg.schemaless;
 
   int32_t contLen = tSerializeSDbCfgRsp(NULL, 0, &cfgRsp);
   void   *pRsp = rpcMallocCont(contLen);
@@ -1542,8 +1549,11 @@ static void dumpDbInfoData(SSDataBlock *pBlock, SDbObj *pDb, SShowObj *pShow, in
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, rows, (const char *)&pDb->cfg.numOfStables, false);
 
-    pColInfo = taosArrayGet(pBlock->pDataBlock, cols);
+    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, rows, (const char *)statusB, false);
+
+    pColInfo = taosArrayGet(pBlock->pDataBlock, cols);
+    colDataAppend(pColInfo, rows, (const char *)&pDb->cfg.schemaless, false);
   }
 }
 
diff --git a/source/libs/parser/inc/parInt.h b/source/libs/parser/inc/parInt.h
index 3efe6700d2..8ec20cde5a 100644
--- a/source/libs/parser/inc/parInt.h
+++ b/source/libs/parser/inc/parInt.h
@@ -32,6 +32,7 @@ int32_t authenticate(SParseContext* pParseCxt, SQuery* pQuery);
 int32_t translate(SParseContext* pParseCxt, SQuery* pQuery);
 int32_t extractResultSchema(const SNode* pRoot, int32_t* numOfCols, SSchema** pSchema);
 int32_t calculateConstant(SParseContext* pParseCxt, SQuery* pQuery);
+int32_t isNotSchemalessDb(SParseContext* pContext, char *dbName);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/parser/src/parInsert.c b/source/libs/parser/src/parInsert.c
index 593a597a82..422c480397 100644
--- a/source/libs/parser/src/parInsert.c
+++ b/source/libs/parser/src/parInsert.c
@@ -1335,6 +1335,8 @@ static int32_t parseInsertBody(SInsertParseContext* pCxt) {
     SName name;
     CHECK_CODE(createSName(&name, &tbnameToken, pCxt->pComCxt->acctId, pCxt->pComCxt->db, &pCxt->msg));
 
+    CHECK_CODE(isNotSchemalessDb(pCxt->pComCxt, name.dbname));
+
     tNameExtractFullName(&name, tbFName);
     CHECK_CODE(taosHashPut(pCxt->pTableNameHashObj, tbFName, strlen(tbFName), &name, sizeof(SName)));
     char dbFName[TSDB_DB_FNAME_LEN];
@@ -1411,6 +1413,23 @@ static int32_t parseInsertBody(SInsertParseContext* pCxt) {
   return buildOutput(pCxt);
 }
 
+int32_t isNotSchemalessDb(SParseContext* pContext, char *dbName){
+  SName          name;
+  tNameSetDbName(&name, pContext->acctId, dbName, strlen(dbName));
+  char dbFname[TSDB_DB_FNAME_LEN] = {0};
+  tNameGetFullDbName(&name, dbFname);
+  SDbCfgInfo pInfo = {0};
+  int32_t code = catalogGetDBCfg(pContext->pCatalog, pContext->pTransporter, &pContext->mgmtEpSet, dbFname, &pInfo);
+  if (code != TSDB_CODE_SUCCESS) {
+    parserError("catalogGetDBCfg error, code:%s, dbFName:%s", tstrerror(code), dbFname);
+    return code;
+  }
+  if (pInfo.schemaless){
+    parserError("can not insert into schemaless db:%s", dbFname);
+    return TSDB_CODE_SML_INVALID_DB_CONF;
+  }
+  return TSDB_CODE_SUCCESS;
+}
 // INSERT INTO
 //   tb_name
 //       [USING stb_name [(tag1_name, ...)] TAGS (tag1_value, ...)]
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index c4e63ee880..f0cba6ddc9 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -2646,6 +2646,11 @@ static int32_t checkCreateTable(STranslateContext* pCxt, SCreateTableStmt* pStmt
   if (TSDB_CODE_SUCCESS == code) {
     code = checkTableSchema(pCxt, pStmt);
   }
+  if (TSDB_CODE_SUCCESS == code) {
+    if(pCxt->pParseCxt->schemalessType == 0){
+      code = isNotSchemalessDb(pCxt->pParseCxt, pStmt->dbName);
+    }
+  }
   return code;
 }
 
@@ -4424,6 +4429,7 @@ static SArray* serializeVgroupsCreateTableBatch(int32_t acctId, SHashObj* pVgrou
 }
 
 static int32_t rewriteCreateMultiTable(STranslateContext* pCxt, SQuery* pQuery) {
+
   SCreateMultiTableStmt* pStmt = (SCreateMultiTableStmt*)pQuery->pRoot;
 
   SHashObj* pVgroupHashmap = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), false, HASH_NO_LOCK);
@@ -4434,6 +4440,10 @@ static int32_t rewriteCreateMultiTable(STranslateContext* pCxt, SQuery* pQuery)
   int32_t code = TSDB_CODE_SUCCESS;
   SNode*  pNode;
   FOREACH(pNode, pStmt->pSubTables) {
+    if(pCxt->pParseCxt->schemalessType == 0 &&
+        (code = isNotSchemalessDb(pCxt->pParseCxt, ((SCreateSubTableClause*)pNode)->dbName)) != TSDB_CODE_SUCCESS){
+      return code;
+    }
     code = rewriteCreateSubTable(pCxt, (SCreateSubTableClause*)pNode, pVgroupHashmap);
     if (TSDB_CODE_SUCCESS != code) {
       taosHashCleanup(pVgroupHashmap);
@@ -4845,9 +4855,14 @@ static int32_t buildModifyVnodeArray(STranslateContext* pCxt, SAlterTableStmt* p
 
 static int32_t rewriteAlterTable(STranslateContext* pCxt, SQuery* pQuery) {
   SAlterTableStmt* pStmt = (SAlterTableStmt*)pQuery->pRoot;
+  int32_t     code = TSDB_CODE_SUCCESS;
+  if(pCxt->pParseCxt->schemalessType == 0 &&
+      (code = isNotSchemalessDb(pCxt->pParseCxt, pStmt->dbName)) != TSDB_CODE_SUCCESS){
+    return code;
+  }
 
   STableMeta* pTableMeta = NULL;
-  int32_t     code = getTableMeta(pCxt, pStmt->dbName, pStmt->tableName, &pTableMeta);
+  code = getTableMeta(pCxt, pStmt->dbName, pStmt->tableName, &pTableMeta);
   if (TSDB_CODE_SUCCESS != code) {
     return code;
   }
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index 74fc14ecdd..6e74109a7d 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -470,6 +470,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_UDF_INVALID_OUTPUT_TYPE,      "udf invalid output ty
 TAOS_DEFINE_ERROR(TSDB_CODE_SML_INVALID_PROTOCOL_TYPE,    "Invalid line protocol type")
 TAOS_DEFINE_ERROR(TSDB_CODE_SML_INVALID_PRECISION_TYPE,   "Invalid timestamp precision type")
 TAOS_DEFINE_ERROR(TSDB_CODE_SML_INVALID_DATA,             "Invalid data type")
+TAOS_DEFINE_ERROR(TSDB_CODE_SML_INVALID_DB_CONF,          "Invalid schemaless db config")
 
 #ifdef TAOS_ERROR_C
 };
diff --git a/tests/system-test/1-insert/influxdb_line_taosc_insert.py b/tests/system-test/1-insert/influxdb_line_taosc_insert.py
index 75e0c3d59c..0ddeba4665 100644
--- a/tests/system-test/1-insert/influxdb_line_taosc_insert.py
+++ b/tests/system-test/1-insert/influxdb_line_taosc_insert.py
@@ -33,10 +33,10 @@ class TDTestCase:
     def createDb(self, name="test", db_update_tag=0):
         if db_update_tag == 0:
             tdSql.execute(f"drop database if exists {name}")
-            tdSql.execute(f"create database if not exists {name} precision 'ms'")
+            tdSql.execute(f"create database if not exists {name} precision 'ms' schemaless 1")
         else:
             tdSql.execute(f"drop database if exists {name}")
-            tdSql.execute(f"create database if not exists {name} precision 'ms' update 1")
+            tdSql.execute(f"create database if not exists {name} precision 'ms' update 1 schemaless 1")
         tdSql.execute(f'use {name}')
 
     def timeTrans(self, time_value, ts_type):
diff --git a/tests/system-test/1-insert/opentsdb_json_taosc_insert.py b/tests/system-test/1-insert/opentsdb_json_taosc_insert.py
index 360d878dfe..f9bc5bbaf4 100644
--- a/tests/system-test/1-insert/opentsdb_json_taosc_insert.py
+++ b/tests/system-test/1-insert/opentsdb_json_taosc_insert.py
@@ -36,10 +36,10 @@ class TDTestCase:
             
         if db_update_tag == 0:
             tdSql.execute(f"drop database if exists {name}")
-            tdSql.execute(f"create database if not exists {name} precision 'ms'")
+            tdSql.execute(f"create database if not exists {name} precision 'ms' schemaless 1")
         else:
             tdSql.execute(f"drop database if exists {name}")
-            tdSql.execute(f"create database if not exists {name} precision 'ms' update 1")
+            tdSql.execute(f"create database if not exists {name} precision 'ms' update 1 schemaless 1")
         tdSql.execute(f'use {name}')
 
     def timeTrans(self, time_value):
@@ -535,7 +535,7 @@ class TDTestCase:
         # check result
         #! bug
         tdSql.execute(f"drop database if exists test_ts")
-        tdSql.execute(f"create database if not exists test_ts precision 'ms'")
+        tdSql.execute(f"create database if not exists test_ts precision 'ms' schemaless 1")
         tdSql.execute("use test_ts")
         input_json = [{"metric": "test_ms", "timestamp": {"value": 1626006833640, "type": "ms"}, "value": True, "tags": {"t0": True}},
                     {"metric": "test_ms", "timestamp": {"value": 1626006833641, "type": "ms"}, "value": False, "tags": {"t0": True}}]
@@ -545,7 +545,7 @@ class TDTestCase:
         tdSql.checkEqual(str(res[1][0]), "2021-07-11 20:33:53.641000")
 
         tdSql.execute(f"drop database if exists test_ts")
-        tdSql.execute(f"create database if not exists test_ts precision 'us'")
+        tdSql.execute(f"create database if not exists test_ts precision 'us' schemaless 1")
         tdSql.execute("use test_ts")
         input_json = [{"metric": "test_us", "timestamp": {"value": 1626006833639000, "type": "us"}, "value": True, "tags": {"t0": True}},
                     {"metric": "test_us", "timestamp": {"value": 1626006833639001, "type": "us"}, "value": False, "tags": {"t0": True}}]
@@ -555,7 +555,7 @@ class TDTestCase:
         tdSql.checkEqual(str(res[1][0]), "2021-07-11 20:33:53.639001")
 
         tdSql.execute(f"drop database if exists test_ts")
-        tdSql.execute(f"create database if not exists test_ts precision 'ns'")
+        tdSql.execute(f"create database if not exists test_ts precision 'ns' schemaless 1")
         tdSql.execute("use test_ts")
         input_json = [{"metric": "test_ns", "timestamp": {"value": 1626006833639000000, "type": "ns"}, "value": True, "tags": {"t0": True}},
                     {"metric": "test_ns", "timestamp": {"value": 1626006833639000001, "type": "ns"}, "value": False, "tags": {"t0": True}}]
diff --git a/tests/system-test/1-insert/opentsdb_telnet_line_taosc_insert.py b/tests/system-test/1-insert/opentsdb_telnet_line_taosc_insert.py
index 6d50dd4fda..23404330ed 100644
--- a/tests/system-test/1-insert/opentsdb_telnet_line_taosc_insert.py
+++ b/tests/system-test/1-insert/opentsdb_telnet_line_taosc_insert.py
@@ -36,10 +36,10 @@ class TDTestCase:
             
         if db_update_tag == 0:
             tdSql.execute(f"drop database if exists {name}")
-            tdSql.execute(f"create database if not exists {name} precision 'us'")
+            tdSql.execute(f"create database if not exists {name} precision 'us' schemaless 1")
         else:
             tdSql.execute(f"drop database if exists {name}")
-            tdSql.execute(f"create database if not exists {name} precision 'ns' update 1")
+            tdSql.execute(f"create database if not exists {name} precision 'ns' update 1 schemaless 1")
         tdSql.execute(f'use {name}')
 
     def timeTrans(self, time_value, ts_type):
@@ -393,7 +393,7 @@ class TDTestCase:
         self.resCmp(input_sql, stb_name, ts_type=TDSmlTimestampType.SECOND.value)
 
         tdSql.execute(f"drop database if exists test_ts")
-        tdSql.execute(f"create database if not exists test_ts precision 'ms'")
+        tdSql.execute(f"create database if not exists test_ts precision 'ms'  schemaless 1")
         tdSql.execute("use test_ts")
         input_sql = ['test_ms 1626006833640 t t0=t', 'test_ms 1626006833641 f t0=t']
         self._conn.schemaless_insert(input_sql, TDSmlProtocolType.TELNET.value, None)
diff --git a/tests/test/c/sdbDump.c b/tests/test/c/sdbDump.c
index 1781dd3183..e5986cf4dd 100644
--- a/tests/test/c/sdbDump.c
+++ b/tests/test/c/sdbDump.c
@@ -86,6 +86,7 @@ void dumpDb(SSdb *pSdb, SJson *json) {
     tjsonAddIntegerToObject(item, "cacheLastRow", pObj->cfg.cacheLastRow);
     tjsonAddIntegerToObject(item, "hashMethod", pObj->cfg.hashMethod);
     tjsonAddIntegerToObject(item, "numOfRetensions", pObj->cfg.numOfRetensions);
+    tjsonAddIntegerToObject(item, "schemaless", pObj->cfg.schemaless);
 
     sdbRelease(pSdb, pObj);
   }