diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index 9ec80293a838f9ee825dc77e97f31b12d621caf6..aaad7f5b52871ff98713a36d3235ece60bede6f9 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -328,6 +328,9 @@ typedef struct {
   int8_t  alterType;
   int32_t numOfFields;
   SArray* pFields;
+  int32_t ttl;
+  int32_t commentLen;
+  char*   comment;
 } SMAlterStbReq;
 
 int32_t tSerializeSMAlterStbReq(void* buf, int32_t bufLen, SMAlterStbReq* pReq);
diff --git a/include/libs/nodes/nodes.h b/include/libs/nodes/nodes.h
index 702dd50df55e6fa98d555a796b8570eaf1e04883..05c9da1a8acb6fdf22ea3e034368814bdc7a9978 100644
--- a/include/libs/nodes/nodes.h
+++ b/include/libs/nodes/nodes.h
@@ -179,6 +179,7 @@ typedef enum ENodeType {
   QUERY_NODE_KILL_CONNECTION_STMT,
   QUERY_NODE_KILL_QUERY_STMT,
   QUERY_NODE_KILL_TRANSACTION_STMT,
+  QUERY_NODE_QUERY,
 
   // logic plan node
   QUERY_NODE_LOGIC_PLAN_SCAN,
diff --git a/include/libs/nodes/querynodes.h b/include/libs/nodes/querynodes.h
index 0a835dae83fd636874206112dce950c0b0d48462..c0e2ec91e0610ba53512aa1a27f8840a881ded15 100644
--- a/include/libs/nodes/querynodes.h
+++ b/include/libs/nodes/querynodes.h
@@ -295,6 +295,37 @@ typedef struct SExplainStmt {
   SNode*           pQuery;
 } SExplainStmt;
 
+typedef struct SCmdMsgInfo {
+  int16_t msgType;
+  SEpSet  epSet;
+  void*   pMsg;
+  int32_t msgLen;
+  void*   pExtension;  // todo remove it soon
+} SCmdMsgInfo;
+
+typedef enum EQueryExecMode {
+  QUERY_EXEC_MODE_LOCAL = 1,
+  QUERY_EXEC_MODE_RPC,
+  QUERY_EXEC_MODE_SCHEDULE,
+  QUERY_EXEC_MODE_EMPTY_RESULT
+} EQueryExecMode;
+
+typedef struct SQuery {
+  ENodeType      type;
+  EQueryExecMode execMode;
+  bool           haveResultSet;
+  SNode*         pRoot;
+  int32_t        numOfResCols;
+  SSchema*       pResSchema;
+  int8_t         precision;
+  SCmdMsgInfo*   pCmdMsg;
+  int32_t        msgType;
+  SArray*        pDbList;
+  SArray*        pTableList;
+  bool           showRewrite;
+  int32_t        placeholderNum;
+} SQuery;
+
 void nodesWalkSelectStmt(SSelectStmt* pSelect, ESqlClause clause, FNodeWalker walker, void* pContext);
 void nodesRewriteSelectStmt(SSelectStmt* pSelect, ESqlClause clause, FNodeRewriter rewriter, void* pContext);
 
diff --git a/include/libs/parser/parser.h b/include/libs/parser/parser.h
index 998d45aee155b120eabb33468f98d48d01a4e16f..a8bcac1c424fa262345f6f627a7ac0940920b34c 100644
--- a/include/libs/parser/parser.h
+++ b/include/libs/parser/parser.h
@@ -48,36 +48,6 @@ typedef struct SParseContext {
   bool             isSuperUser;
 } SParseContext;
 
-typedef struct SCmdMsgInfo {
-  int16_t msgType;
-  SEpSet  epSet;
-  void*   pMsg;
-  int32_t msgLen;
-  void*   pExtension;  // todo remove it soon
-} SCmdMsgInfo;
-
-typedef enum EQueryExecMode {
-  QUERY_EXEC_MODE_LOCAL = 1,
-  QUERY_EXEC_MODE_RPC,
-  QUERY_EXEC_MODE_SCHEDULE,
-  QUERY_EXEC_MODE_EMPTY_RESULT
-} EQueryExecMode;
-
-typedef struct SQuery {
-  EQueryExecMode execMode;
-  bool           haveResultSet;
-  SNode*         pRoot;
-  int32_t        numOfResCols;
-  SSchema*       pResSchema;
-  int8_t         precision;
-  SCmdMsgInfo*   pCmdMsg;
-  int32_t        msgType;
-  SArray*        pDbList;
-  SArray*        pTableList;
-  bool           showRewrite;
-  int32_t        placeholderNum;
-} SQuery;
-
 int32_t qParseQuerySql(SParseContext* pCxt, SQuery** pQuery);
 bool    isInsertSql(const char* pStr, size_t length);
 
@@ -103,9 +73,10 @@ void    destroyBoundColumnInfo(void* pBoundInfo);
 int32_t qCreateSName(SName* pName, const char* pTableName, int32_t acctId, char* dbName, char* msgBuf,
                      int32_t msgBufLen);
 
-void*   smlInitHandle(SQuery *pQuery);
-void    smlDestroyHandle(void *pHandle);
-int32_t smlBindData(void *handle, SArray *tags, SArray *colsFormat, SArray *colsSchema, SArray *cols, bool format, STableMeta *pTableMeta, char *tableName, char *msgBuf, int16_t msgBufLen);
+void*   smlInitHandle(SQuery* pQuery);
+void    smlDestroyHandle(void* pHandle);
+int32_t smlBindData(void* handle, SArray* tags, SArray* colsFormat, SArray* colsSchema, SArray* cols, bool format,
+                    STableMeta* pTableMeta, char* tableName, char* msgBuf, int16_t msgBufLen);
 int32_t smlBuildOutput(void* handle, SHashObj* pVgHash);
 
 #ifdef __cplusplus
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 6a57b8d53ea30a50613a3bc2885299d548c4da30..addc478673d312c18a60631e00100b771ae91c0b 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -632,6 +632,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_PAR_INVALID_VAR_COLUMN_LEN    TAOS_DEF_ERROR_CODE(0, 0x2642)
 #define TSDB_CODE_PAR_INVALID_TAGS_NUM          TAOS_DEF_ERROR_CODE(0, 0x2643)
 #define TSDB_CODE_PAR_PERMISSION_DENIED         TAOS_DEF_ERROR_CODE(0, 0x2644)
+#define TSDB_CODE_PAR_INVALID_STREAM_QUERY      TAOS_DEF_ERROR_CODE(0, 0x2645)
 
 //planner
 #define TSDB_CODE_PLAN_INTERNAL_ERROR           TAOS_DEF_ERROR_CODE(0, 0x2700)
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 56bb93faa4090689e65d66610a566902207872e4..0853d48d67ac127bfc12f8fe1158d9bba404715a 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -607,6 +607,11 @@ int32_t tSerializeSMAlterStbReq(void *buf, int32_t bufLen, SMAlterStbReq *pReq)
     if (tEncodeI32(&encoder, pField->bytes) < 0) return -1;
     if (tEncodeCStr(&encoder, pField->name) < 0) return -1;
   }
+  if (tEncodeI32(&encoder, pReq->ttl) < 0) return -1;
+  if (tEncodeI32(&encoder, pReq->commentLen) < 0) return -1;
+  if (pReq->commentLen > 0) {
+    if (tEncodeCStr(&encoder, pReq->comment) < 0) return -1;
+  }
   tEndEncode(&encoder);
 
   int32_t tlen = encoder.pos;
@@ -639,6 +644,14 @@ int32_t tDeserializeSMAlterStbReq(void *buf, int32_t bufLen, SMAlterStbReq *pReq
     }
   }
 
+  if (tDecodeI32(&decoder, &pReq->ttl) < 0) return -1;
+  if (tDecodeI32(&decoder, &pReq->commentLen) < 0) return -1;
+  if (pReq->commentLen > 0) {
+    pReq->comment = taosMemoryMalloc(pReq->commentLen);
+    if (pReq->comment == NULL) return -1;
+    if (tDecodeCStrTo(&decoder, pReq->comment) < 0) return -1;
+  }
+
   tEndDecode(&decoder);
   tDecoderClear(&decoder);
   return 0;
diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index b7bd0235816a1437eb268cec08d8d67a912e05f5..b88c3493b96cb42a302ffff21cc77a3f1ef09069 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -959,6 +959,16 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .sprocessFunc = NULL,
     .finalizeFunc = NULL
   },
+  {
+    .name = "_c0",
+    .type = FUNCTION_TYPE_ROWTS,
+    .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC,
+    .translateFunc = translateTimePseudoColumn,
+    .getEnvFunc   = getTimePseudoFuncEnv,
+    .initFunc     = NULL,
+    .sprocessFunc = NULL,
+    .finalizeFunc = NULL
+  },
   {
     .name = "tbname",
     .type = FUNCTION_TYPE_TBNAME,
diff --git a/source/libs/parser/src/parAstCreater.c b/source/libs/parser/src/parAstCreater.c
index e8ac5620720b59ed85f0bec546ad2f9a948a0cbe..a9481593e08daba1599381b9e8e08b39bd03e74b 100644
--- a/source/libs/parser/src/parAstCreater.c
+++ b/source/libs/parser/src/parAstCreater.c
@@ -907,6 +907,13 @@ SNode* createDropSuperTableStmt(SAstCreateContext* pCxt, bool ignoreNotExists, S
   return (SNode*)pStmt;
 }
 
+static SNode* createAlterTableStmtFinalize(SNode* pRealTable, SAlterTableStmt* pStmt) {
+  strcpy(pStmt->dbName, ((SRealTableNode*)pRealTable)->table.dbName);
+  strcpy(pStmt->tableName, ((SRealTableNode*)pRealTable)->table.tableName);
+  nodesDestroyNode(pRealTable);
+  return (SNode*)pStmt;
+}
+
 SNode* createAlterTableModifyOptions(SAstCreateContext* pCxt, SNode* pRealTable, SNode* pOptions) {
   if (NULL == pRealTable) {
     return NULL;
@@ -915,7 +922,7 @@ SNode* createAlterTableModifyOptions(SAstCreateContext* pCxt, SNode* pRealTable,
   CHECK_OUT_OF_MEM(pStmt);
   pStmt->alterType = TSDB_ALTER_TABLE_UPDATE_OPTIONS;
   pStmt->pOptions = (STableOptions*)pOptions;
-  return (SNode*)pStmt;
+  return createAlterTableStmtFinalize(pRealTable, pStmt);
 }
 
 SNode* createAlterTableAddModifyCol(SAstCreateContext* pCxt, SNode* pRealTable, int8_t alterType,
@@ -928,7 +935,7 @@ SNode* createAlterTableAddModifyCol(SAstCreateContext* pCxt, SNode* pRealTable,
   pStmt->alterType = alterType;
   strncpy(pStmt->colName, pColName->z, pColName->n);
   pStmt->dataType = dataType;
-  return (SNode*)pStmt;
+  return createAlterTableStmtFinalize(pRealTable, pStmt);
 }
 
 SNode* createAlterTableDropCol(SAstCreateContext* pCxt, SNode* pRealTable, int8_t alterType, const SToken* pColName) {
@@ -939,7 +946,7 @@ SNode* createAlterTableDropCol(SAstCreateContext* pCxt, SNode* pRealTable, int8_
   CHECK_OUT_OF_MEM(pStmt);
   pStmt->alterType = alterType;
   strncpy(pStmt->colName, pColName->z, pColName->n);
-  return (SNode*)pStmt;
+  return createAlterTableStmtFinalize(pRealTable, pStmt);
 }
 
 SNode* createAlterTableRenameCol(SAstCreateContext* pCxt, SNode* pRealTable, int8_t alterType,
@@ -952,7 +959,7 @@ SNode* createAlterTableRenameCol(SAstCreateContext* pCxt, SNode* pRealTable, int
   pStmt->alterType = alterType;
   strncpy(pStmt->colName, pOldColName->z, pOldColName->n);
   strncpy(pStmt->newColName, pNewColName->z, pNewColName->n);
-  return (SNode*)pStmt;
+  return createAlterTableStmtFinalize(pRealTable, pStmt);
 }
 
 SNode* createAlterTableSetTag(SAstCreateContext* pCxt, SNode* pRealTable, const SToken* pTagName, SNode* pVal) {
@@ -964,7 +971,7 @@ SNode* createAlterTableSetTag(SAstCreateContext* pCxt, SNode* pRealTable, const
   pStmt->alterType = TSDB_ALTER_TABLE_UPDATE_TAG_VAL;
   strncpy(pStmt->colName, pTagName->z, pTagName->n);
   pStmt->pVal = (SValueNode*)pVal;
-  return (SNode*)pStmt;
+  return createAlterTableStmtFinalize(pRealTable, pStmt);
 }
 
 SNode* createUseDatabaseStmt(SAstCreateContext* pCxt, SToken* pDbName) {
diff --git a/source/libs/parser/src/parTokenizer.c b/source/libs/parser/src/parTokenizer.c
index 01327c08efb4a7de9f811e68bbd2d96156b4f3f8..abc7ddb17f4b6ea4cd9a859637fe3886dffa21fc 100644
--- a/source/libs/parser/src/parTokenizer.c
+++ b/source/libs/parser/src/parTokenizer.c
@@ -214,6 +214,7 @@ static SKeyword keywordTable[] = {
     {"WINDOW_CLOSE",  TK_WINDOW_CLOSE},
     {"WITH",          TK_WITH},
     {"WRITE",         TK_WRITE},
+    {"_C0",           TK_ROWTS},
     {"_QENDTS",       TK_QENDTS},
     {"_QSTARTTS",     TK_QSTARTTS},
     {"_ROWTS",        TK_ROWTS},
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index d40da8a6298b82f578db71cc8fd4ffe43a0191bc..e6b0d186456ed0f3bbe2a9828fb4cbef1e22d445 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -782,6 +782,7 @@ static EDealRes rewriteColToSelectValFunc(STranslateContext* pCxt, bool* pHasSel
     return DEAL_RES_ERROR;
   }
   strcpy(pFunc->functionName, "_select_value");
+  strcpy(pFunc->node.aliasName, ((SExprNode*)*pNode)->aliasName);
   pCxt->errCode = nodesListMakeAppend(&pFunc->pParameterList, *pNode);
   if (TSDB_CODE_SUCCESS == pCxt->errCode) {
     translateFunction(pCxt, pFunc);
@@ -2540,10 +2541,18 @@ static int32_t buildCreateStbReq(STranslateContext* pCxt, SCreateTableStmt* pStm
   pReq->igExists = pStmt->ignoreExists;
   pReq->xFilesFactor = pStmt->pOptions->filesFactor;
   pReq->delay = pStmt->pOptions->delay;
+  pReq->ttl = pStmt->pOptions->ttl;
   columnDefNodeToField(pStmt->pCols, &pReq->pColumns);
   columnDefNodeToField(pStmt->pTags, &pReq->pTags);
   pReq->numOfColumns = LIST_LENGTH(pStmt->pCols);
   pReq->numOfTags = LIST_LENGTH(pStmt->pTags);
+  if ('\0' != pStmt->pOptions->comment[0]) {
+    pReq->comment = strdup(pStmt->pOptions->comment);
+    if (NULL == pReq->comment) {
+      return TSDB_CODE_OUT_OF_MEMORY;
+    }
+    pReq->commentLen = strlen(pStmt->pOptions->comment) + 1;
+  }
 
   SName tableName;
   tNameExtractFullName(toName(pCxt->pParseCxt->acctId, pStmt->dbName, pStmt->tableName, &tableName), pReq->name);
@@ -2602,6 +2611,18 @@ static int32_t translateDropSuperTable(STranslateContext* pCxt, SDropSuperTableS
 }
 
 static int32_t setAlterTableField(SAlterTableStmt* pStmt, SMAlterStbReq* pAlterReq) {
+  if (TSDB_ALTER_TABLE_UPDATE_OPTIONS == pStmt->alterType) {
+    pAlterReq->ttl = pStmt->pOptions->ttl;
+    if ('\0' != pStmt->pOptions->comment[0]) {
+      pAlterReq->comment = strdup(pStmt->pOptions->comment);
+      if (NULL == pAlterReq->comment) {
+        return TSDB_CODE_OUT_OF_MEMORY;
+      }
+      pAlterReq->commentLen = strlen(pStmt->pOptions->comment) + 1;
+    }
+    return TSDB_CODE_SUCCESS;
+  }
+
   pAlterReq->pFields = taosArrayInit(2, sizeof(TAOS_FIELD));
   if (NULL == pAlterReq->pFields) {
     return TSDB_CODE_OUT_OF_MEMORY;
@@ -2614,7 +2635,7 @@ static int32_t setAlterTableField(SAlterTableStmt* pStmt, SMAlterStbReq* pAlterR
     case TSDB_ALTER_TABLE_DROP_COLUMN:
     case TSDB_ALTER_TABLE_UPDATE_COLUMN_BYTES:
     case TSDB_ALTER_TABLE_UPDATE_TAG_BYTES: {
-      TAOS_FIELD field = {.type = pStmt->dataType.type, .bytes = pStmt->dataType.bytes};
+      TAOS_FIELD field = {.type = pStmt->dataType.type, .bytes = calcTypeBytes(pStmt->dataType)};
       strcpy(field.name, pStmt->colName);
       taosArrayPush(pAlterReq->pFields, &field);
       break;
@@ -2625,7 +2646,7 @@ static int32_t setAlterTableField(SAlterTableStmt* pStmt, SMAlterStbReq* pAlterR
       strcpy(oldField.name, pStmt->colName);
       taosArrayPush(pAlterReq->pFields, &oldField);
       TAOS_FIELD newField = {0};
-      strcpy(oldField.name, pStmt->newColName);
+      strcpy(newField.name, pStmt->newColName);
       taosArrayPush(pAlterReq->pFields, &newField);
       break;
     }
@@ -2642,7 +2663,7 @@ static int32_t translateAlterTable(STranslateContext* pCxt, SAlterTableStmt* pSt
   SName         tableName;
   tNameExtractFullName(toName(pCxt->pParseCxt->acctId, pStmt->dbName, pStmt->tableName, &tableName), alterReq.name);
   alterReq.alterType = pStmt->alterType;
-  if (TSDB_ALTER_TABLE_UPDATE_OPTIONS == pStmt->alterType || TSDB_ALTER_TABLE_UPDATE_TAG_VAL == pStmt->alterType) {
+  if (TSDB_ALTER_TABLE_UPDATE_TAG_VAL == pStmt->alterType) {
     return TSDB_CODE_FAILED;
   } else {
     if (TSDB_CODE_SUCCESS != setAlterTableField(pStmt, &alterReq)) {
@@ -2929,7 +2950,6 @@ static int32_t buildCreateTopicReq(STranslateContext* pCxt, SCreateTopicStmt* pS
   SName name;
   tNameSetDbName(&name, pCxt->pParseCxt->acctId, pStmt->topicName, strlen(pStmt->topicName));
   tNameGetFullDbName(&name, pReq->name);
-  /*tNameExtractFullName(toName(pCxt->pParseCxt->acctId, pCxt->pParseCxt->db, pStmt->topicName, &name), pReq->name);*/
   pReq->igExists = pStmt->ignoreExists;
   pReq->withTbName = pStmt->pOptions->withTable;
   pReq->withSchema = pStmt->pOptions->withSchema;
@@ -2993,7 +3013,8 @@ static int32_t translateDropTopic(STranslateContext* pCxt, SDropTopicStmt* pStmt
   SMDropTopicReq dropReq = {0};
 
   SName name;
-  tNameExtractFullName(toName(pCxt->pParseCxt->acctId, pCxt->pParseCxt->db, pStmt->topicName, &name), dropReq.name);
+  tNameSetDbName(&name, pCxt->pParseCxt->acctId, pStmt->topicName, strlen(pStmt->topicName));
+  tNameGetFullDbName(&name, dropReq.name);
   dropReq.igNotExists = pStmt->ignoreNotExists;
 
   return buildCmdMsg(pCxt, TDMT_MND_DROP_TOPIC, (FSerializeFunc)tSerializeSMDropTopicReq, &dropReq);
@@ -3033,28 +3054,48 @@ static int32_t translateKillTransaction(STranslateContext* pCxt, SKillStmt* pStm
   return buildCmdMsg(pCxt, TDMT_MND_KILL_TRANS, (FSerializeFunc)tSerializeSKillTransReq, &killReq);
 }
 
-static int32_t translateCreateStream(STranslateContext* pCxt, SCreateStreamStmt* pStmt) {
-  SCMCreateStreamReq createReq = {0};
+static int32_t checkCreateStream(STranslateContext* pCxt, SCreateStreamStmt* pStmt) {
+  if (NULL == pStmt->pQuery) {
+    return TSDB_CODE_SUCCESS;
+  }
 
-  createReq.igExists = pStmt->ignoreExists;
+  if (QUERY_NODE_SELECT_STMT == nodeType(pStmt->pQuery)) {
+    SSelectStmt* pSelect = (SSelectStmt*)pStmt->pQuery;
+    if (QUERY_NODE_REAL_TABLE == nodeType(pSelect->pFromTable)) {
+      return TSDB_CODE_SUCCESS;
+    }
+  }
+
+  return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_STREAM_QUERY);
+}
+
+static void getSourceDatabase(SNode* pStmt, int32_t acctId, char* pDbFName) {
+  SName name = {.type = TSDB_DB_NAME_T, .acctId = acctId};
+  strcpy(name.dbname, ((SRealTableNode*)(((SSelectStmt*)pStmt)->pFromTable))->table.dbName);
+  tNameGetFullDbName(&name, pDbFName);
+}
+
+static int32_t buildCreateStreamReq(STranslateContext* pCxt, SCreateStreamStmt* pStmt, SCMCreateStreamReq* pReq) {
+  pReq->igExists = pStmt->ignoreExists;
 
   SName name;
-  tNameExtractFullName(toName(pCxt->pParseCxt->acctId, pCxt->pParseCxt->db, pStmt->streamName, &name), createReq.name);
+  tNameExtractFullName(toName(pCxt->pParseCxt->acctId, pCxt->pParseCxt->db, pStmt->streamName, &name), pReq->name);
 
   if ('\0' != pStmt->targetTabName[0]) {
     strcpy(name.dbname, pStmt->targetDbName);
     strcpy(name.tname, pStmt->targetTabName);
-    tNameExtractFullName(&name, createReq.targetStbFullName);
+    tNameExtractFullName(&name, pReq->targetStbFullName);
   }
 
   int32_t code = translateQuery(pCxt, pStmt->pQuery);
   if (TSDB_CODE_SUCCESS == code) {
-    code = nodesNodeToString(pStmt->pQuery, false, &createReq.ast, NULL);
+    getSourceDatabase(pStmt->pQuery, pCxt->pParseCxt->acctId, pReq->sourceDB);
+    code = nodesNodeToString(pStmt->pQuery, false, &pReq->ast, NULL);
   }
 
   if (TSDB_CODE_SUCCESS == code) {
-    createReq.sql = strdup(pCxt->pParseCxt->pSql);
-    if (NULL == createReq.sql) {
+    pReq->sql = strdup(pCxt->pParseCxt->pSql);
+    if (NULL == pReq->sql) {
       code = TSDB_CODE_OUT_OF_MEMORY;
     }
   }
@@ -3064,11 +3105,20 @@ static int32_t translateCreateStream(STranslateContext* pCxt, SCreateStreamStmt*
                                                                                               : TSDB_CODE_SUCCESS;
   }
   if (TSDB_CODE_SUCCESS == code) {
-    createReq.triggerType = pStmt->pOptions->triggerType;
-    createReq.watermark =
-        (NULL != pStmt->pOptions->pWatermark ? ((SValueNode*)pStmt->pOptions->pWatermark)->datum.i : 0);
+    pReq->triggerType = pStmt->pOptions->triggerType;
+    pReq->watermark = (NULL != pStmt->pOptions->pWatermark ? ((SValueNode*)pStmt->pOptions->pWatermark)->datum.i : 0);
   }
 
+  return code;
+}
+
+static int32_t translateCreateStream(STranslateContext* pCxt, SCreateStreamStmt* pStmt) {
+  SCMCreateStreamReq createReq = {0};
+
+  int32_t code = checkCreateStream(pCxt, pStmt);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = buildCreateStreamReq(pCxt, pStmt, &createReq);
+  }
   if (TSDB_CODE_SUCCESS == code) {
     code = buildCmdMsg(pCxt, TDMT_MND_CREATE_STREAM, (FSerializeFunc)tSerializeSCMCreateStreamReq, &createReq);
   }
diff --git a/source/libs/parser/test/parInitialATest.cpp b/source/libs/parser/test/parInitialATest.cpp
index 5bd9eb5c43ce6736fe4085085b93bca2a3599b25..4ddb7736b2cf545f0f05981d43ef0574a77154b6 100644
--- a/source/libs/parser/test/parInitialATest.cpp
+++ b/source/libs/parser/test/parInitialATest.cpp
@@ -19,7 +19,7 @@ using namespace std;
 
 namespace ParserTest {
 
-class ParserInitialATest : public ParserTestBase {};
+class ParserInitialATest : public ParserDdlTest {};
 
 TEST_F(ParserInitialATest, alterAccount) {
   useDb("root", "test");
@@ -72,16 +72,103 @@ TEST_F(ParserInitialATest, alterDatabase) {
 TEST_F(ParserInitialATest, alterTable) {
   useDb("root", "test");
 
-  // run("ALTER TABLE t1 TTL 10");
-  // run("ALTER TABLE t1 COMMENT 'test'");
+  SMAlterStbReq expect = {0};
+
+  auto setAlterStbReqFunc = [&](const char* pTbname, int8_t alterType, int32_t numOfFields = 0,
+                                const char* pField1Name = nullptr, int8_t field1Type = 0, int32_t field1Bytes = 0,
+                                const char* pField2Name = nullptr, const char* pComment = nullptr,
+                                int32_t ttl = TSDB_DEFAULT_TABLE_TTL) {
+    int32_t len = snprintf(expect.name, sizeof(expect.name), "0.test.%s", pTbname);
+    expect.name[len] = '\0';
+    expect.alterType = alterType;
+    expect.ttl = ttl;
+    if (nullptr != pComment) {
+      expect.comment = strdup(pComment);
+      expect.commentLen = strlen(pComment) + 1;
+    }
+
+    expect.numOfFields = numOfFields;
+    if (NULL == expect.pFields) {
+      expect.pFields = taosArrayInit(2, sizeof(TAOS_FIELD));
+      TAOS_FIELD field = {0};
+      taosArrayPush(expect.pFields, &field);
+      taosArrayPush(expect.pFields, &field);
+    }
+
+    TAOS_FIELD* pField = (TAOS_FIELD*)taosArrayGet(expect.pFields, 0);
+    if (NULL != pField1Name) {
+      strcpy(pField->name, pField1Name);
+      pField->name[strlen(pField1Name)] = '\0';
+    } else {
+      memset(pField, 0, sizeof(TAOS_FIELD));
+    }
+    pField->type = field1Type;
+    pField->bytes = field1Bytes > 0 ? field1Bytes : (field1Type > 0 ? tDataTypes[field1Type].bytes : 0);
+
+    pField = (TAOS_FIELD*)taosArrayGet(expect.pFields, 1);
+    if (NULL != pField2Name) {
+      strcpy(pField->name, pField2Name);
+      pField->name[strlen(pField2Name)] = '\0';
+    } else {
+      memset(pField, 0, sizeof(TAOS_FIELD));
+    }
+    pField->type = 0;
+    pField->bytes = 0;
+  };
+
+  setCheckDdlFunc([&](const SQuery* pQuery, ParserStage stage) {
+    ASSERT_EQ(nodeType(pQuery->pRoot), QUERY_NODE_ALTER_TABLE_STMT);
+    SMAlterStbReq req = {0};
+    ASSERT_TRUE(TSDB_CODE_SUCCESS == tDeserializeSMAlterStbReq(pQuery->pCmdMsg->pMsg, pQuery->pCmdMsg->msgLen, &req));
+    ASSERT_EQ(std::string(req.name), std::string(expect.name));
+    ASSERT_EQ(req.alterType, expect.alterType);
+    ASSERT_EQ(req.numOfFields, expect.numOfFields);
+    if (expect.numOfFields > 0) {
+      TAOS_FIELD* pField = (TAOS_FIELD*)taosArrayGet(req.pFields, 0);
+      TAOS_FIELD* pExpectField = (TAOS_FIELD*)taosArrayGet(expect.pFields, 0);
+      ASSERT_EQ(std::string(pField->name), std::string(pExpectField->name));
+      ASSERT_EQ(pField->type, pExpectField->type);
+      ASSERT_EQ(pField->bytes, pExpectField->bytes);
+    }
+    if (expect.numOfFields > 1) {
+      TAOS_FIELD* pField = (TAOS_FIELD*)taosArrayGet(req.pFields, 1);
+      TAOS_FIELD* pExpectField = (TAOS_FIELD*)taosArrayGet(expect.pFields, 1);
+      ASSERT_EQ(std::string(pField->name), std::string(pExpectField->name));
+      ASSERT_EQ(pField->type, pExpectField->type);
+      ASSERT_EQ(pField->bytes, pExpectField->bytes);
+    }
+  });
+
+  setAlterStbReqFunc("t1", TSDB_ALTER_TABLE_UPDATE_OPTIONS, 0, nullptr, 0, 0, nullptr, nullptr, 10);
+  run("ALTER TABLE t1 TTL 10");
+
+  setAlterStbReqFunc("t1", TSDB_ALTER_TABLE_UPDATE_OPTIONS, 0, nullptr, 0, 0, nullptr, "test");
+  run("ALTER TABLE t1 COMMENT 'test'");
+
+  setAlterStbReqFunc("t1", TSDB_ALTER_TABLE_ADD_COLUMN, 1, "cc1", TSDB_DATA_TYPE_BIGINT);
   run("ALTER TABLE t1 ADD COLUMN cc1 BIGINT");
+
+  setAlterStbReqFunc("t1", TSDB_ALTER_TABLE_DROP_COLUMN, 1, "c1");
   run("ALTER TABLE t1 DROP COLUMN c1");
+
+  setAlterStbReqFunc("t1", TSDB_ALTER_TABLE_UPDATE_COLUMN_BYTES, 1, "c1", TSDB_DATA_TYPE_VARCHAR,
+                     20 + VARSTR_HEADER_SIZE);
   run("ALTER TABLE t1 MODIFY COLUMN c1 VARCHAR(20)");
+
+  setAlterStbReqFunc("t1", TSDB_ALTER_TABLE_UPDATE_COLUMN_NAME, 2, "c1", 0, 0, "cc1");
   run("ALTER TABLE t1 RENAME COLUMN c1 cc1");
 
+  setAlterStbReqFunc("st1", TSDB_ALTER_TABLE_ADD_TAG, 1, "tag11", TSDB_DATA_TYPE_BIGINT);
   run("ALTER TABLE st1 ADD TAG tag11 BIGINT");
+
+  setAlterStbReqFunc("st1", TSDB_ALTER_TABLE_DROP_TAG, 1, "tag1");
   run("ALTER TABLE st1 DROP TAG tag1");
+
+  setAlterStbReqFunc("st1", TSDB_ALTER_TABLE_UPDATE_TAG_BYTES, 1, "tag1", TSDB_DATA_TYPE_VARCHAR,
+                     20 + VARSTR_HEADER_SIZE);
   run("ALTER TABLE st1 MODIFY TAG tag1 VARCHAR(20)");
+
+  setAlterStbReqFunc("st1", TSDB_ALTER_TABLE_UPDATE_TAG_NAME, 2, "tag1", 0, 0, "tag11");
   run("ALTER TABLE st1 RENAME TAG tag1 tag11");
 
   // run("ALTER TABLE st1s1 SET TAG tag1=10");
diff --git a/source/libs/parser/test/parInitialCTest.cpp b/source/libs/parser/test/parInitialCTest.cpp
index 540560fcd72a3c4fa0e579dfab69fa72937a63c2..cf364aba5cce1cc62eeafa64bb39e724ac555095 100644
--- a/source/libs/parser/test/parInitialCTest.cpp
+++ b/source/libs/parser/test/parInitialCTest.cpp
@@ -19,7 +19,7 @@ using namespace std;
 
 namespace ParserTest {
 
-class ParserInitialCTest : public ParserTestBase {};
+class ParserInitialCTest : public ParserDdlTest {};
 
 // todo compact
 
@@ -97,17 +97,143 @@ TEST_F(ParserInitialCTest, createSnode) {
 TEST_F(ParserInitialCTest, createStable) {
   useDb("root", "test");
 
+  SMCreateStbReq expect = {0};
+
+  auto setCreateStbReqFunc = [&](const char* pTbname, int8_t igExists = 0,
+                                 float   xFilesFactor = TSDB_DEFAULT_ROLLUP_FILE_FACTOR,
+                                 int32_t delay = TSDB_DEFAULT_ROLLUP_DELAY, int32_t ttl = TSDB_DEFAULT_TABLE_TTL,
+                                 const char* pComment = nullptr) {
+    memset(&expect, 0, sizeof(SMCreateStbReq));
+    int32_t len = snprintf(expect.name, sizeof(expect.name), "0.test.%s", pTbname);
+    expect.name[len] = '\0';
+    expect.igExists = igExists;
+    expect.xFilesFactor = xFilesFactor;
+    expect.delay = delay;
+    expect.ttl = ttl;
+    if (nullptr != pComment) {
+      expect.comment = strdup(pComment);
+      expect.commentLen = strlen(pComment) + 1;
+    }
+  };
+
+  auto addFieldToCreateStbReqFunc = [&](bool col, const char* pFieldName, uint8_t type, int32_t bytes = 0,
+                                        int8_t flags = SCHEMA_SMA_ON) {
+    SField field = {0};
+    strcpy(field.name, pFieldName);
+    field.type = type;
+    field.bytes = bytes > 0 ? bytes : tDataTypes[type].bytes;
+    field.flags = flags;
+
+    if (col) {
+      if (NULL == expect.pColumns) {
+        expect.pColumns = taosArrayInit(TARRAY_MIN_SIZE, sizeof(SField));
+      }
+      taosArrayPush(expect.pColumns, &field);
+      expect.numOfColumns += 1;
+    } else {
+      if (NULL == expect.pTags) {
+        expect.pTags = taosArrayInit(TARRAY_MIN_SIZE, sizeof(SField));
+      }
+      taosArrayPush(expect.pTags, &field);
+      expect.numOfTags += 1;
+    }
+  };
+
+  setCheckDdlFunc([&](const SQuery* pQuery, ParserStage stage) {
+    ASSERT_EQ(nodeType(pQuery->pRoot), QUERY_NODE_CREATE_TABLE_STMT);
+    SMCreateStbReq req = {0};
+    ASSERT_TRUE(TSDB_CODE_SUCCESS == tDeserializeSMCreateStbReq(pQuery->pCmdMsg->pMsg, pQuery->pCmdMsg->msgLen, &req));
+
+    ASSERT_EQ(std::string(req.name), std::string(expect.name));
+    ASSERT_EQ(req.igExists, expect.igExists);
+    ASSERT_EQ(req.xFilesFactor, expect.xFilesFactor);
+    ASSERT_EQ(req.delay, expect.delay);
+    ASSERT_EQ(req.ttl, expect.ttl);
+    ASSERT_EQ(req.numOfColumns, expect.numOfColumns);
+    ASSERT_EQ(req.numOfTags, expect.numOfTags);
+    ASSERT_EQ(req.commentLen, expect.commentLen);
+    ASSERT_EQ(req.ast1Len, expect.ast1Len);
+    ASSERT_EQ(req.ast2Len, expect.ast2Len);
+
+    if (expect.numOfColumns > 0) {
+      ASSERT_EQ(taosArrayGetSize(req.pColumns), expect.numOfColumns);
+      ASSERT_EQ(taosArrayGetSize(req.pColumns), taosArrayGetSize(expect.pColumns));
+      for (int32_t i = 0; i < expect.numOfColumns; ++i) {
+        SField* pField = (SField*)taosArrayGet(req.pColumns, i);
+        SField* pExpectField = (SField*)taosArrayGet(expect.pColumns, i);
+        ASSERT_EQ(std::string(pField->name), std::string(pExpectField->name));
+        ASSERT_EQ(pField->type, pExpectField->type);
+        ASSERT_EQ(pField->bytes, pExpectField->bytes);
+        ASSERT_EQ(pField->flags, pExpectField->flags);
+      }
+    }
+    if (expect.numOfTags > 0) {
+      ASSERT_EQ(taosArrayGetSize(req.pTags), expect.numOfTags);
+      ASSERT_EQ(taosArrayGetSize(req.pTags), taosArrayGetSize(expect.pTags));
+      for (int32_t i = 0; i < expect.numOfTags; ++i) {
+        SField* pField = (SField*)taosArrayGet(req.pTags, i);
+        SField* pExpectField = (SField*)taosArrayGet(expect.pTags, i);
+        ASSERT_EQ(std::string(pField->name), std::string(pExpectField->name));
+        ASSERT_EQ(pField->type, pExpectField->type);
+        ASSERT_EQ(pField->bytes, pExpectField->bytes);
+        ASSERT_EQ(pField->flags, pExpectField->flags);
+      }
+    }
+    if (expect.commentLen > 0) {
+      ASSERT_EQ(std::string(req.comment), std::string(expect.comment));
+    }
+    if (expect.ast1Len > 0) {
+      ASSERT_EQ(std::string(req.pAst1), std::string(expect.pAst1));
+    }
+    if (expect.ast2Len > 0) {
+      ASSERT_EQ(std::string(req.pAst2), std::string(expect.pAst2));
+    }
+  });
+
+  setCreateStbReqFunc("t1");
+  addFieldToCreateStbReqFunc(true, "ts", TSDB_DATA_TYPE_TIMESTAMP);
+  addFieldToCreateStbReqFunc(true, "c1", TSDB_DATA_TYPE_INT);
+  addFieldToCreateStbReqFunc(false, "id", TSDB_DATA_TYPE_INT);
   run("create stable t1(ts timestamp, c1 int) TAGS(id int)");
 
+  setCreateStbReqFunc("t1", 1, 0.1, 2, 100, "test create table");
+  addFieldToCreateStbReqFunc(true, "ts", TSDB_DATA_TYPE_TIMESTAMP, 0, 0);
+  addFieldToCreateStbReqFunc(true, "c1", TSDB_DATA_TYPE_INT);
+  addFieldToCreateStbReqFunc(true, "c2", TSDB_DATA_TYPE_UINT);
+  addFieldToCreateStbReqFunc(true, "c3", TSDB_DATA_TYPE_BIGINT);
+  addFieldToCreateStbReqFunc(true, "c4", TSDB_DATA_TYPE_UBIGINT, 0, 0);
+  addFieldToCreateStbReqFunc(true, "c5", TSDB_DATA_TYPE_FLOAT, 0, 0);
+  addFieldToCreateStbReqFunc(true, "c6", TSDB_DATA_TYPE_DOUBLE, 0, 0);
+  addFieldToCreateStbReqFunc(true, "c7", TSDB_DATA_TYPE_BINARY, 20 + VARSTR_HEADER_SIZE, 0);
+  addFieldToCreateStbReqFunc(true, "c8", TSDB_DATA_TYPE_SMALLINT, 0, 0);
+  addFieldToCreateStbReqFunc(true, "c9", TSDB_DATA_TYPE_USMALLINT, 0, 0);
+  addFieldToCreateStbReqFunc(true, "c10", TSDB_DATA_TYPE_TINYINT, 0, 0);
+  addFieldToCreateStbReqFunc(true, "c11", TSDB_DATA_TYPE_UTINYINT, 0, 0);
+  addFieldToCreateStbReqFunc(true, "c12", TSDB_DATA_TYPE_BOOL, 0, 0);
+  addFieldToCreateStbReqFunc(true, "c13", TSDB_DATA_TYPE_NCHAR, 30 * TSDB_NCHAR_SIZE + VARSTR_HEADER_SIZE, 0);
+  addFieldToCreateStbReqFunc(true, "c14", TSDB_DATA_TYPE_VARCHAR, 50 + VARSTR_HEADER_SIZE, 0);
+  addFieldToCreateStbReqFunc(false, "a1", TSDB_DATA_TYPE_TIMESTAMP);
+  addFieldToCreateStbReqFunc(false, "a2", TSDB_DATA_TYPE_INT);
+  addFieldToCreateStbReqFunc(false, "a3", TSDB_DATA_TYPE_UINT);
+  addFieldToCreateStbReqFunc(false, "a4", TSDB_DATA_TYPE_BIGINT);
+  addFieldToCreateStbReqFunc(false, "a5", TSDB_DATA_TYPE_UBIGINT);
+  addFieldToCreateStbReqFunc(false, "a6", TSDB_DATA_TYPE_FLOAT);
+  addFieldToCreateStbReqFunc(false, "a7", TSDB_DATA_TYPE_DOUBLE);
+  addFieldToCreateStbReqFunc(false, "a8", TSDB_DATA_TYPE_BINARY, 20 + VARSTR_HEADER_SIZE);
+  addFieldToCreateStbReqFunc(false, "a9", TSDB_DATA_TYPE_SMALLINT);
+  addFieldToCreateStbReqFunc(false, "a10", TSDB_DATA_TYPE_USMALLINT);
+  addFieldToCreateStbReqFunc(false, "a11", TSDB_DATA_TYPE_TINYINT);
+  addFieldToCreateStbReqFunc(false, "a12", TSDB_DATA_TYPE_UTINYINT);
+  addFieldToCreateStbReqFunc(false, "a13", TSDB_DATA_TYPE_BOOL);
+  addFieldToCreateStbReqFunc(false, "a14", TSDB_DATA_TYPE_NCHAR, 30 * TSDB_NCHAR_SIZE + VARSTR_HEADER_SIZE);
+  addFieldToCreateStbReqFunc(false, "a15", TSDB_DATA_TYPE_VARCHAR, 50 + VARSTR_HEADER_SIZE);
   run("create stable if not exists test.t1("
-      "ts TIMESTAMP, c1 INT, c2 INT UNSIGNED, c3 BIGINT, c4 BIGINT UNSIGNED, c5 FLOAT, c6 DOUBLE, c7 BINARY(20), c8 "
-      "SMALLINT, "
-      "c9 SMALLINT UNSIGNED COMMENT 'test column comment', c10 TINYINT, c11 TINYINT UNSIGNED, c12 BOOL, c13 NCHAR(30), "
-      "c15 VARCHAR(50)) "
-      "TAGS (tsa TIMESTAMP, a1 INT, a2 INT UNSIGNED, a3 BIGINT, a4 BIGINT UNSIGNED, a5 FLOAT, a6 DOUBLE, a7 "
-      "BINARY(20), a8 SMALLINT, "
-      "a9 SMALLINT UNSIGNED COMMENT 'test column comment', a10 TINYINT, a11 TINYINT UNSIGNED, a12 BOOL, a13 NCHAR(30), "
-      "a15 VARCHAR(50)) "
+      "ts TIMESTAMP, c1 INT, c2 INT UNSIGNED, c3 BIGINT, c4 BIGINT UNSIGNED, c5 FLOAT, c6 DOUBLE, c7 BINARY(20), "
+      "c8 SMALLINT, c9 SMALLINT UNSIGNED COMMENT 'test column comment', c10 TINYINT, c11 TINYINT UNSIGNED, c12 BOOL, "
+      "c13 NCHAR(30), c14 VARCHAR(50)) "
+      "TAGS (a1 TIMESTAMP, a2 INT, a3 INT UNSIGNED, a4 BIGINT, a5 BIGINT UNSIGNED, a6 FLOAT, a7 DOUBLE, "
+      "a8 BINARY(20), a9 SMALLINT, a10 SMALLINT UNSIGNED COMMENT 'test column comment', a11 TINYINT, "
+      "a12 TINYINT UNSIGNED, a13 BOOL, a14 NCHAR(30), a15 VARCHAR(50)) "
       "TTL 100 COMMENT 'test create table' SMA(c1, c2, c3) ROLLUP (min) FILE_FACTOR 0.1 DELAY 2");
 }
 
diff --git a/source/libs/parser/test/parTestUtil.cpp b/source/libs/parser/test/parTestUtil.cpp
index a9ff756a95699e8e8f4fb89c0bf734976fa75bf3..250ac1c52885f10d45a4ef96321d410f115b9255 100644
--- a/source/libs/parser/test/parTestUtil.cpp
+++ b/source/libs/parser/test/parTestUtil.cpp
@@ -49,6 +49,8 @@ struct TerminateFlag : public exception {
 
 class ParserTestBaseImpl {
  public:
+  ParserTestBaseImpl(ParserTestBase* pBase) : pBase_(pBase) {}
+
   void useDb(const string& acctId, const string& db) {
     caseEnv_.acctId_ = acctId;
     caseEnv_.db_ = db;
@@ -156,11 +158,13 @@ class ParserTestBaseImpl {
 
   void doParse(SParseContext* pCxt, SQuery** pQuery) {
     DO_WITH_THROW(parse, pCxt, pQuery);
+    ASSERT_NE(*pQuery, nullptr);
     res_.parsedAst_ = toString((*pQuery)->pRoot);
   }
 
   void doTranslate(SParseContext* pCxt, SQuery* pQuery) {
     DO_WITH_THROW(translate, pCxt, pQuery);
+    checkQuery(pQuery, PARSER_STAGE_TRANSLATE);
     res_.translatedAst_ = toString(pQuery->pRoot);
   }
 
@@ -178,12 +182,15 @@ class ParserTestBaseImpl {
     return str;
   }
 
-  caseEnv caseEnv_;
-  stmtEnv stmtEnv_;
-  stmtRes res_;
+  void checkQuery(const SQuery* pQuery, ParserStage stage) { pBase_->checkDdl(pQuery, stage); }
+
+  caseEnv         caseEnv_;
+  stmtEnv         stmtEnv_;
+  stmtRes         res_;
+  ParserTestBase* pBase_;
 };
 
-ParserTestBase::ParserTestBase() : impl_(new ParserTestBaseImpl()) {}
+ParserTestBase::ParserTestBase() : impl_(new ParserTestBaseImpl(this)) {}
 
 ParserTestBase::~ParserTestBase() {}
 
@@ -193,4 +200,6 @@ void ParserTestBase::run(const std::string& sql, int32_t expect, ParserStage che
   return impl_->run(sql, expect, checkStage);
 }
 
+void ParserTestBase::checkDdl(const SQuery* pQuery, ParserStage stage) { return; }
+
 }  // namespace ParserTest
diff --git a/source/libs/parser/test/parTestUtil.h b/source/libs/parser/test/parTestUtil.h
index 0e8703b2c82fa85772e5bf8650ef1b3be78dd3f3..c7d7ead8dbc8a5d6b7a45cde0552e9e979ea07ec 100644
--- a/source/libs/parser/test/parTestUtil.h
+++ b/source/libs/parser/test/parTestUtil.h
@@ -18,6 +18,9 @@
 
 #include <gtest/gtest.h>
 
+#define ALLOW_FORBID_FUNC
+
+#include "querynodes.h"
 #include "taoserror.h"
 
 namespace ParserTest {
@@ -34,10 +37,32 @@ class ParserTestBase : public testing::Test {
   void useDb(const std::string& acctId, const std::string& db);
   void run(const std::string& sql, int32_t expect = TSDB_CODE_SUCCESS, ParserStage checkStage = PARSER_STAGE_ALL);
 
+  virtual void checkDdl(const SQuery* pQuery, ParserStage stage);
+
  private:
   std::unique_ptr<ParserTestBaseImpl> impl_;
 };
 
+class ParserDdlTest : public ParserTestBase {
+ public:
+  void setCheckDdlFunc(const std::function<void(const SQuery*, ParserStage)>& func) { checkDdl_ = func; }
+
+  virtual void checkDdl(const SQuery* pQuery, ParserStage stage) {
+    ASSERT_NE(pQuery, nullptr);
+    ASSERT_EQ(pQuery->haveResultSet, false);
+    ASSERT_NE(pQuery->pRoot, nullptr);
+    ASSERT_EQ(pQuery->numOfResCols, 0);
+    ASSERT_EQ(pQuery->pResSchema, nullptr);
+    ASSERT_EQ(pQuery->precision, 0);
+    if (nullptr != checkDdl_) {
+      checkDdl_(pQuery, stage);
+    }
+  }
+
+ private:
+  std::function<void(const SQuery*, ParserStage)> checkDdl_;
+};
+
 extern bool g_isDump;
 
 }  // namespace ParserTest