diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index f7562a4b9b30aa3314fe19c789da15b4681322b8..38609c23483ece8ce97e4065d42952d6f58d0ab8 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -301,6 +301,8 @@ typedef struct SSchema {
 typedef struct {
   int32_t  nCols;
   int32_t  sver;
+  int32_t  tagVer;
+  int32_t  colVer;
   SSchema* pSchema;
 } SSchemaWrapper;
 
@@ -309,6 +311,8 @@ static FORCE_INLINE SSchemaWrapper* tCloneSSchemaWrapper(const SSchemaWrapper* p
   if (pSW == NULL) return pSW;
   pSW->nCols = pSchemaWrapper->nCols;
   pSW->sver = pSchemaWrapper->sver;
+  pSW->tagVer = pSchemaWrapper->tagVer;
+  pSW->colVer = pSchemaWrapper->colVer;
   pSW->pSchema = (SSchema*)taosMemoryCalloc(pSW->nCols, sizeof(SSchema));
   if (pSW->pSchema == NULL) {
     taosMemoryFree(pSW);
@@ -364,6 +368,8 @@ static FORCE_INLINE int32_t taosEncodeSSchemaWrapper(void** buf, const SSchemaWr
   int32_t tlen = 0;
   tlen += taosEncodeVariantI32(buf, pSW->nCols);
   tlen += taosEncodeVariantI32(buf, pSW->sver);
+  tlen += taosEncodeVariantI32(buf, pSW->tagVer);
+  tlen += taosEncodeVariantI32(buf, pSW->colVer);
   for (int32_t i = 0; i < pSW->nCols; i++) {
     tlen += taosEncodeSSchema(buf, &pSW->pSchema[i]);
   }
@@ -373,6 +379,8 @@ static FORCE_INLINE int32_t taosEncodeSSchemaWrapper(void** buf, const SSchemaWr
 static FORCE_INLINE void* taosDecodeSSchemaWrapper(const void* buf, SSchemaWrapper* pSW) {
   buf = taosDecodeVariantI32(buf, &pSW->nCols);
   buf = taosDecodeVariantI32(buf, &pSW->sver);
+  buf = taosDecodeVariantI32(buf, &pSW->tagVer);
+  buf = taosDecodeVariantI32(buf, &pSW->colVer);
   pSW->pSchema = (SSchema*)taosMemoryCalloc(pSW->nCols, sizeof(SSchema));
   if (pSW->pSchema == NULL) {
     return NULL;
@@ -387,6 +395,8 @@ static FORCE_INLINE void* taosDecodeSSchemaWrapper(const void* buf, SSchemaWrapp
 static FORCE_INLINE int32_t tEncodeSSchemaWrapper(SEncoder* pEncoder, const SSchemaWrapper* pSW) {
   if (tEncodeI32v(pEncoder, pSW->nCols) < 0) return -1;
   if (tEncodeI32v(pEncoder, pSW->sver) < 0) return -1;
+  if (tEncodeI32v(pEncoder, pSW->tagVer) < 0) return -1;
+  if (tEncodeI32v(pEncoder, pSW->colVer) < 0) return -1;
   for (int32_t i = 0; i < pSW->nCols; i++) {
     if (tEncodeSSchema(pEncoder, &pSW->pSchema[i]) < 0) return -1;
   }
@@ -397,6 +407,8 @@ static FORCE_INLINE int32_t tEncodeSSchemaWrapper(SEncoder* pEncoder, const SSch
 static FORCE_INLINE int32_t tDecodeSSchemaWrapper(SDecoder* pDecoder, SSchemaWrapper* pSW) {
   if (tDecodeI32v(pDecoder, &pSW->nCols) < 0) return -1;
   if (tDecodeI32v(pDecoder, &pSW->sver) < 0) return -1;
+  if (tDecodeI32v(pDecoder, &pSW->tagVer) < 0) return -1;
+  if (tDecodeI32v(pDecoder, &pSW->colVer) < 0) return -1;
 
   pSW->pSchema = (SSchema*)taosMemoryCalloc(pSW->nCols, sizeof(SSchema));
   if (pSW->pSchema == NULL) return -1;
@@ -410,6 +422,8 @@ static FORCE_INLINE int32_t tDecodeSSchemaWrapper(SDecoder* pDecoder, SSchemaWra
 static FORCE_INLINE int32_t tDecodeSSchemaWrapperEx(SDecoder* pDecoder, SSchemaWrapper* pSW) {
   if (tDecodeI32v(pDecoder, &pSW->nCols) < 0) return -1;
   if (tDecodeI32v(pDecoder, &pSW->sver) < 0) return -1;
+  if (tDecodeI32v(pDecoder, &pSW->tagVer) < 0) return -1;
+  if (tDecodeI32v(pDecoder, &pSW->colVer) < 0) return -1;
 
   pSW->pSchema = (SSchema*)tDecoderMalloc(pDecoder, pSW->nCols * sizeof(SSchema));
   if (pSW->pSchema == NULL) return -1;
@@ -455,6 +469,7 @@ int32_t tDeserializeSMDropStbReq(void* buf, int32_t bufLen, SMDropStbReq* pReq);
 typedef struct {
   char    name[TSDB_TABLE_FNAME_LEN];
   int8_t  alterType;
+  int32_t verInBlock;
   int32_t numOfFields;
   SArray* pFields;
   int32_t ttl;
diff --git a/include/libs/function/functionMgt.h b/include/libs/function/functionMgt.h
index aec14766637a6f74a1a723f7cffeacbf6eb9c6f8..89fbc92992bf783b1d8896fbf636f2468b6fa4c6 100644
--- a/include/libs/function/functionMgt.h
+++ b/include/libs/function/functionMgt.h
@@ -142,6 +142,8 @@ void fmFuncMgtDestroy();
 
 int32_t fmGetFuncInfo(SFmGetFuncInfoParam* pParam, SFunctionNode* pFunc);
 
+bool fmIsBuiltinFunc(const char* pFunc);
+
 bool fmIsAggFunc(int32_t funcId);
 bool fmIsScalarFunc(int32_t funcId);
 bool fmIsNonstandardSQLFunc(int32_t funcId);
diff --git a/include/libs/nodes/cmdnodes.h b/include/libs/nodes/cmdnodes.h
index 5e294ae45564daa5007edc8e9362406601ffaa77..82bf4e1f45a0cab5c7f1b61d04e08d137148e44d 100644
--- a/include/libs/nodes/cmdnodes.h
+++ b/include/libs/nodes/cmdnodes.h
@@ -78,7 +78,7 @@ typedef struct SAlterDatabaseStmt {
 
 typedef struct STableOptions {
   ENodeType  type;
-  char       comment[TSDB_STB_COMMENT_LEN];
+  char       comment[TSDB_TB_COMMENT_LEN];
   int32_t    delay;
   float      filesFactor;
   SNodeList* pRollupFuncs;
@@ -90,7 +90,7 @@ typedef struct SColumnDefNode {
   ENodeType type;
   char      colName[TSDB_COL_NAME_LEN];
   SDataType dataType;
-  char      comments[TSDB_STB_COMMENT_LEN];
+  char      comments[TSDB_TB_COMMENT_LEN];
   bool      sma;
 } SColumnDefNode;
 
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index be6005d46b6d5f701d81ac7c9de5d7d1e92d79ff..fd3e008e676dfc640c31d8999b2b57e275738d12 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -647,6 +647,8 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_PAR_CANNOT_DROP_PRIMARY_KEY   TAOS_DEF_ERROR_CODE(0, 0x264A)
 #define TSDB_CODE_PAR_INVALID_MODIFY_COL        TAOS_DEF_ERROR_CODE(0, 0x264B)
 #define TSDB_CODE_PAR_INVALID_TBNAME            TAOS_DEF_ERROR_CODE(0, 0x264C)
+#define TSDB_CODE_PAR_INVALID_FUNCTION_NAME     TAOS_DEF_ERROR_CODE(0, 0x264D)
+#define TSDB_CODE_PAR_COMMENT_TOO_LONG          TAOS_DEF_ERROR_CODE(0, 0x264E)
 
 //planner
 #define TSDB_CODE_PLAN_INTERNAL_ERROR           TAOS_DEF_ERROR_CODE(0, 0x2700)
diff --git a/include/util/tdef.h b/include/util/tdef.h
index f95d96be56d40a24cb227820058807eac9e7f051..5cc687d7ab141c0eedabfcf6331f56af1a6175e5 100644
--- a/include/util/tdef.h
+++ b/include/util/tdef.h
@@ -218,8 +218,8 @@ typedef enum ELogicConditionType {
 #define TSDB_MAX_SQL_SHOW_LEN    1024
 #define TSDB_MAX_ALLOWED_SQL_LEN (1 * 1024 * 1024u)  // sql length should be less than 1mb
 
-#define TSDB_APP_NAME_LEN    TSDB_UNI_LEN
-#define TSDB_STB_COMMENT_LEN 1024
+#define TSDB_APP_NAME_LEN   TSDB_UNI_LEN
+#define TSDB_TB_COMMENT_LEN 1025
 
 /**
  *  In some scenarios uint16_t (0~65535) is used to store the row len.
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 278fc2c193830dfa199f07c4598c80ce8576b4ec..677fbb43b4d88f195460678cf5b3a99f7358ea5d 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -600,6 +600,7 @@ int32_t tSerializeSMAlterStbReq(void *buf, int32_t bufLen, SMAlterStbReq *pReq)
   if (tStartEncode(&encoder) < 0) return -1;
   if (tEncodeCStr(&encoder, pReq->name) < 0) return -1;
   if (tEncodeI8(&encoder, pReq->alterType) < 0) return -1;
+  if (tEncodeI32(&encoder, pReq->verInBlock) < 0) return -1;
   if (tEncodeI32(&encoder, pReq->numOfFields) < 0) return -1;
   for (int32_t i = 0; i < pReq->numOfFields; ++i) {
     SField *pField = taosArrayGet(pReq->pFields, i);
@@ -626,6 +627,7 @@ int32_t tDeserializeSMAlterStbReq(void *buf, int32_t bufLen, SMAlterStbReq *pReq
   if (tStartDecode(&decoder) < 0) return -1;
   if (tDecodeCStrTo(&decoder, pReq->name) < 0) return -1;
   if (tDecodeI8(&decoder, &pReq->alterType) < 0) return -1;
+  if (tDecodeI32(&decoder, &pReq->verInBlock) < 0) return -1;
   if (tDecodeI32(&decoder, &pReq->numOfFields) < 0) return -1;
   pReq->pFields = taosArrayInit(pReq->numOfFields, sizeof(SField));
   if (pReq->pFields == NULL) {
diff --git a/source/dnode/mgmt/mgmt_bnode/src/bmHandle.c b/source/dnode/mgmt/mgmt_bnode/src/bmHandle.c
index 2637e0af04401a3e11d13a30cd93fd1e62428746..d2e547078e925401ed3154133c0f96f2e48eec50 100644
--- a/source/dnode/mgmt/mgmt_bnode/src/bmHandle.c
+++ b/source/dnode/mgmt/mgmt_bnode/src/bmHandle.c
@@ -16,7 +16,7 @@
 #define _DEFAULT_SOURCE
 #include "bmInt.h"
 
-static void bmGetMonitorInfo(SBnodeMgmt *pMgmt, SMonBmInfo *bmInfo) {}
+void bmGetMonitorInfo(SBnodeMgmt *pMgmt, SMonBmInfo *bmInfo) {}
 
 int32_t bmProcessGetMonBmInfoReq(SBnodeMgmt *pMgmt, SRpcMsg *pReq) {
   SMonBmInfo bmInfo = {0};
diff --git a/source/dnode/mgmt/mgmt_dnode/inc/dmInt.h b/source/dnode/mgmt/mgmt_dnode/inc/dmInt.h
index f90fd72c6b5a836f9bb38b185cea058eb71ff3bb..ae8879326d6da92b6bd5ab3ea89584b347817fd4 100644
--- a/source/dnode/mgmt/mgmt_dnode/inc/dmInt.h
+++ b/source/dnode/mgmt/mgmt_dnode/inc/dmInt.h
@@ -32,7 +32,9 @@ typedef struct SDnodeMgmt {
   SSingleWorker       mgmtWorker;
   ProcessCreateNodeFp processCreateNodeFp;
   ProcessDropNodeFp   processDropNodeFp;
-  IsNodeRequiredFp    isNodeRequiredFp;
+  SendMonitorReportFp sendMonitorReportFp;
+  GetVnodeLoadsFp     getVnodeLoadsFp;
+  GetMnodeLoadsFp     getMnodeLoadsFp;
 } SDnodeMgmt;
 
 // dmHandle.c
@@ -43,11 +45,6 @@ int32_t dmProcessAuthRsp(SDnodeMgmt *pMgmt, SRpcMsg *pMsg);
 int32_t dmProcessGrantRsp(SDnodeMgmt *pMgmt, SRpcMsg *pMsg);
 int32_t dmProcessServerRunStatus(SDnodeMgmt *pMgmt, SRpcMsg *pMsg);
 
-// dmMonitor.c
-void dmGetVnodeLoads(SDnodeMgmt *pMgmt, SMonVloadInfo *pInfo);
-void dmGetMnodeLoads(SDnodeMgmt *pMgmt, SMonMloadInfo *pInfo);
-void dmSendMonitorReport(SDnodeMgmt *pMgmt);
-
 // dmWorker.c
 int32_t dmPutNodeMsgToMgmtQueue(SDnodeMgmt *pMgmt, SRpcMsg *pMsg);
 int32_t dmStartStatusThread(SDnodeMgmt *pMgmt);
diff --git a/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c b/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c
index 38e71754b60bd25baa7008b238bea20f151a28b3..7c1162ec10797b5e58fbbe56552bb8ba3503e05d 100644
--- a/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c
+++ b/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c
@@ -72,11 +72,11 @@ void dmSendStatusReq(SDnodeMgmt *pMgmt) {
   taosRUnLockLatch(&pMgmt->pData->latch);
 
   SMonVloadInfo vinfo = {0};
-  dmGetVnodeLoads(pMgmt, &vinfo);
+  (*pMgmt->getVnodeLoadsFp)(&vinfo);
   req.pVloads = vinfo.pVloads;
 
   SMonMloadInfo minfo = {0};
-  dmGetMnodeLoads(pMgmt, &minfo);
+  (*pMgmt->getMnodeLoadsFp)(&minfo);
 
   int32_t contLen = tSerializeSStatusReq(NULL, 0, &req);
   void   *pHead = rpcMallocCont(contLen);
@@ -115,7 +115,7 @@ static void dmGetServerRunStatus(SDnodeMgmt *pMgmt, SServerStatusRsp *pStatus) {
 
   SServerStatusRsp statusRsp = {0};
   SMonMloadInfo    minfo = {0};
-  dmGetMnodeLoads(pMgmt, &minfo);
+  (*pMgmt->getMnodeLoadsFp)(&minfo);
   if (minfo.isMnode && minfo.load.syncState == TAOS_SYNC_STATE_ERROR) {
     pStatus->statusCode = TSDB_SRV_STATUS_SERVICE_DEGRADED;
     snprintf(pStatus->details, sizeof(pStatus->details), "mnode sync state is %s", syncStr(minfo.load.syncState));
@@ -123,7 +123,7 @@ static void dmGetServerRunStatus(SDnodeMgmt *pMgmt, SServerStatusRsp *pStatus) {
   }
 
   SMonVloadInfo vinfo = {0};
-  dmGetVnodeLoads(pMgmt, &vinfo);
+  (*pMgmt->getVnodeLoadsFp)(&vinfo);
   for (int32_t i = 0; i < taosArrayGetSize(vinfo.pVloads); ++i) {
     SVnodeLoad *pLoad = taosArrayGet(vinfo.pVloads, i);
     if (pLoad->syncState == TAOS_SYNC_STATE_ERROR) {
diff --git a/source/dnode/mgmt/mgmt_dnode/src/dmInt.c b/source/dnode/mgmt/mgmt_dnode/src/dmInt.c
index 3b343d491642229da7b0e6db63301476853856e6..59c926545e6f565a124a4846532e4f74efeecd5e 100644
--- a/source/dnode/mgmt/mgmt_dnode/src/dmInt.c
+++ b/source/dnode/mgmt/mgmt_dnode/src/dmInt.c
@@ -45,7 +45,9 @@ static int32_t dmOpenMgmt(SMgmtInputOpt *pInput, SMgmtOutputOpt *pOutput) {
   pMgmt->name = pInput->name;
   pMgmt->processCreateNodeFp = pInput->processCreateNodeFp;
   pMgmt->processDropNodeFp = pInput->processDropNodeFp;
-  pMgmt->isNodeRequiredFp = pInput->isNodeRequiredFp;
+  pMgmt->sendMonitorReportFp = pInput->sendMonitorReportFp;
+  pMgmt->getVnodeLoadsFp = pInput->getVnodeLoadsFp;
+  pMgmt->getMnodeLoadsFp = pInput->getMnodeLoadsFp;
 
   if (dmStartWorker(pMgmt) != 0) {
     return -1;
diff --git a/source/dnode/mgmt/mgmt_dnode/src/dmMonitor.c b/source/dnode/mgmt/mgmt_dnode/src/dmMonitor.c
deleted file mode 100644
index 3547c769377733ac9b60a5e3859f395e469505f0..0000000000000000000000000000000000000000
--- a/source/dnode/mgmt/mgmt_dnode/src/dmMonitor.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define _DEFAULT_SOURCE
-#include "dmInt.h"
-
-#define dmSendLocalRecv(pMgmt, mtype, func, pInfo)           \
-  if (!tsMultiProcess) {                                     \
-    SRpcMsg rsp = {0};                                       \
-    SRpcMsg req = {.msgType = mtype};                        \
-    SEpSet  epset = {.inUse = 0, .numOfEps = 1};             \
-    tstrncpy(epset.eps[0].fqdn, tsLocalFqdn, TSDB_FQDN_LEN); \
-    epset.eps[0].port = tsServerPort;                        \
-    rpcSendRecv(pMgmt->msgCb.clientRpc, &epset, &req, &rsp); \
-    if (rsp.code == 0 && rsp.contLen > 0) {                  \
-      func(rsp.pCont, rsp.contLen, pInfo);                   \
-    }                                                        \
-    rpcFreeCont(rsp.pCont);                                  \
-  }
-
-static void dmGetMonitorBasicInfo(SDnodeMgmt *pMgmt, SMonBasicInfo *pInfo) {
-  pInfo->protocol = 1;
-  pInfo->dnode_id = pMgmt->pData->dnodeId;
-  pInfo->cluster_id = pMgmt->pData->clusterId;
-  tstrncpy(pInfo->dnode_ep, tsLocalEp, TSDB_EP_LEN);
-}
-
-static void dmGetMonitorDnodeInfo(SDnodeMgmt *pMgmt, SMonDnodeInfo *pInfo) {
-  pInfo->uptime = (taosGetTimestampMs() - pMgmt->pData->rebootTime) / (86400000.0f);
-  pInfo->has_mnode = (*pMgmt->isNodeRequiredFp)(MNODE);
-  pInfo->has_qnode = (*pMgmt->isNodeRequiredFp)(QNODE);
-  pInfo->has_snode = (*pMgmt->isNodeRequiredFp)(SNODE);
-  pInfo->has_bnode = (*pMgmt->isNodeRequiredFp)(BNODE);
-  tstrncpy(pInfo->logdir.name, tsLogDir, sizeof(pInfo->logdir.name));
-  pInfo->logdir.size = tsLogSpace.size;
-  tstrncpy(pInfo->tempdir.name, tsTempDir, sizeof(pInfo->tempdir.name));
-  pInfo->tempdir.size = tsTempSpace.size;
-}
-
-static void dmGetMonitorInfo(SDnodeMgmt *pMgmt, SMonDmInfo *pInfo) {
-  dmGetMonitorBasicInfo(pMgmt, &pInfo->basic);
-  dmGetMonitorDnodeInfo(pMgmt, &pInfo->dnode);
-  dmGetMonitorSystemInfo(&pInfo->sys);
-}
-
-void dmSendMonitorReport(SDnodeMgmt *pMgmt) {
-  if (!tsEnableMonitor || tsMonitorFqdn[0] == 0 || tsMonitorPort == 0) return;
-  dTrace("send monitor report to %s:%u", tsMonitorFqdn, tsMonitorPort);
-
-  SMonDmInfo dmInfo = {0};
-  SMonMmInfo mmInfo = {0};
-  SMonVmInfo vmInfo = {0};
-  SMonQmInfo qmInfo = {0};
-  SMonSmInfo smInfo = {0};
-  SMonBmInfo bmInfo = {0};
-
-  dmGetMonitorInfo(pMgmt, &dmInfo);
-  dmSendLocalRecv(pMgmt, TDMT_MON_VM_INFO, tDeserializeSMonVmInfo, &vmInfo);
-  if (dmInfo.dnode.has_mnode) {
-    dmSendLocalRecv(pMgmt, TDMT_MON_MM_INFO, tDeserializeSMonMmInfo, &mmInfo);
-  }
-  if (dmInfo.dnode.has_qnode) {
-    dmSendLocalRecv(pMgmt, TDMT_MON_QM_INFO, tDeserializeSMonQmInfo, &qmInfo);
-  }
-  if (dmInfo.dnode.has_snode) {
-    dmSendLocalRecv(pMgmt, TDMT_MON_SM_INFO, tDeserializeSMonSmInfo, &smInfo);
-  }
-  if (dmInfo.dnode.has_bnode) {
-    dmSendLocalRecv(pMgmt, TDMT_MON_BM_INFO, tDeserializeSMonBmInfo, &bmInfo);
-  }
-
-  monSetDmInfo(&dmInfo);
-  monSetMmInfo(&mmInfo);
-  monSetVmInfo(&vmInfo);
-  monSetQmInfo(&qmInfo);
-  monSetSmInfo(&smInfo);
-  monSetBmInfo(&bmInfo);
-  tFreeSMonMmInfo(&mmInfo);
-  tFreeSMonVmInfo(&vmInfo);
-  tFreeSMonQmInfo(&qmInfo);
-  tFreeSMonSmInfo(&smInfo);
-  tFreeSMonBmInfo(&bmInfo);
-  monSendReport();
-}
-
-void dmGetVnodeLoads(SDnodeMgmt *pMgmt, SMonVloadInfo *pInfo) {
-  dmSendLocalRecv(pMgmt, TDMT_MON_VM_LOAD, tDeserializeSMonVloadInfo, pInfo);
-}
-
-void dmGetMnodeLoads(SDnodeMgmt *pMgmt, SMonMloadInfo *pInfo) {
-  dmSendLocalRecv(pMgmt, TDMT_MON_MM_LOAD, tDeserializeSMonMloadInfo, pInfo);
-}
diff --git a/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c b/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c
index 599fa07e1ca9501502669d439b0543c46e31f7bd..6a7e0ad322efca98991c362d90d602c3ca692c26 100644
--- a/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c
+++ b/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c
@@ -50,7 +50,7 @@ static void *dmMonitorThreadFp(void *param) {
     int64_t curTime = taosGetTimestampMs();
     float   interval = (curTime - lastTime) / 1000.0f;
     if (interval >= tsMonitorInterval) {
-      dmSendMonitorReport(pMgmt);
+      (*pMgmt->sendMonitorReportFp)();
       lastTime = curTime;
     }
   }
diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmFile.c b/source/dnode/mgmt/mgmt_mnode/src/mmFile.c
index df377fefe796960c6d793c7b3550ccec8c4e50c3..0bab05f9737059b5fd3a79ca1e5288814b65a76e 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmFile.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmFile.c
@@ -154,6 +154,6 @@ int32_t mmWriteFile(SMnodeMgmt *pMgmt, SDCreateMnodeReq *pReq, bool deployed) {
     return -1;
   }
 
-  dInfo("successed to write %s, deployed:%d", realfile, deployed);
+  dDebug("successed to write %s, deployed:%d", realfile, deployed);
   return 0;
 }
diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
index a09fd2627e8b795859fb135aa90b200ae7146258..8b2d8f8badf9e83a210c59298b233efd3b499842 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
@@ -16,8 +16,13 @@
 #define _DEFAULT_SOURCE
 #include "mmInt.h"
 
-static void mmGetMonitorInfo(SMnodeMgmt *pMgmt, SMonMmInfo *mmInfo) {
-  mndGetMonitorInfo(pMgmt->pMnode, &mmInfo->cluster, &mmInfo->vgroup, &mmInfo->grant);
+void mmGetMonitorInfo(SMnodeMgmt *pMgmt, SMonMmInfo *pInfo) {
+  mndGetMonitorInfo(pMgmt->pMnode, &pInfo->cluster, &pInfo->vgroup, &pInfo->grant);
+}
+
+void mmGetMnodeLoads(SMnodeMgmt *pMgmt, SMonMloadInfo *pInfo) {
+  pInfo->isMnode = 1;
+  mndGetLoad(pMgmt->pMnode, &pInfo->load);
 }
 
 int32_t mmProcessGetMonitorInfoReq(SMnodeMgmt *pMgmt, SRpcMsg *pReq) {
@@ -45,11 +50,6 @@ int32_t mmProcessGetMonitorInfoReq(SMnodeMgmt *pMgmt, SRpcMsg *pReq) {
   return 0;
 }
 
-static void mmGetMnodeLoads(SMnodeMgmt *pMgmt, SMonMloadInfo *pInfo) {
-  pInfo->isMnode = 1;
-  mndGetLoad(pMgmt->pMnode, &pInfo->load);
-}
-
 int32_t mmProcessGetLoadsReq(SMnodeMgmt *pMgmt, SRpcMsg *pReq) {
   SMonMloadInfo mloads = {0};
   mmGetMnodeLoads(pMgmt, &mloads);
diff --git a/source/dnode/mgmt/mgmt_qnode/src/qmHandle.c b/source/dnode/mgmt/mgmt_qnode/src/qmHandle.c
index 4518a558bba131a2ad93a66d3f4c70ae2e657b7f..ac0868d8ef4ed6e6ef9aab1d5e445807b209bd5d 100644
--- a/source/dnode/mgmt/mgmt_qnode/src/qmHandle.c
+++ b/source/dnode/mgmt/mgmt_qnode/src/qmHandle.c
@@ -16,7 +16,7 @@
 #define _DEFAULT_SOURCE
 #include "qmInt.h"
 
-static void qmGetMonitorInfo(SQnodeMgmt *pMgmt, SMonQmInfo *qmInfo) {}
+void qmGetMonitorInfo(SQnodeMgmt *pMgmt, SMonQmInfo *qmInfo) {}
 
 int32_t qmProcessGetMonitorInfoReq(SQnodeMgmt *pMgmt, SRpcMsg *pReq) {
   SMonQmInfo qmInfo = {0};
diff --git a/source/dnode/mgmt/mgmt_snode/src/smHandle.c b/source/dnode/mgmt/mgmt_snode/src/smHandle.c
index ad83639a8d956d5251fc3a988152c82e0925ae21..d6ff73b132fea374e89b4b0d348081abefebb875 100644
--- a/source/dnode/mgmt/mgmt_snode/src/smHandle.c
+++ b/source/dnode/mgmt/mgmt_snode/src/smHandle.c
@@ -16,7 +16,7 @@
 #define _DEFAULT_SOURCE
 #include "smInt.h"
 
-static void smGetMonitorInfo(SSnodeMgmt *pMgmt, SMonSmInfo *smInfo) {}
+void smGetMonitorInfo(SSnodeMgmt *pMgmt, SMonSmInfo *smInfo) {}
 
 int32_t smProcessGetMonitorInfoReq(SSnodeMgmt *pMgmt, SRpcMsg *pReq) {
   SMonSmInfo smInfo = {0};
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmFile.c b/source/dnode/mgmt/mgmt_vnode/src/vmFile.c
index f6c7bb33e61595f886552baae062401c53aacf77..7a6c5f982ed13317a4d047f95b8893f9798d4a09 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmFile.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmFile.c
@@ -128,7 +128,7 @@ int32_t vmGetVnodeListFromFile(SVnodeMgmt *pMgmt, SWrapperCfg **ppCfgs, int32_t
 
   *numOfVnodes = vnodesNum;
   code = 0;
-  dInfo("succcessed to read file %s", file);
+  dDebug("succcessed to read file %s", file);
 
 _OVER:
   if (content != NULL) taosMemoryFree(content);
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
index 902998f28e5739d82a38bdca1e5bff1c94fc22be..a4da6d089c6b2d21db01207747d1b291ffbbd5fd 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
@@ -16,7 +16,7 @@
 #define _DEFAULT_SOURCE
 #include "vmInt.h"
 
-static void vmGetVnodeLoads(SVnodeMgmt *pMgmt, SMonVloadInfo *pInfo) {
+void vmGetVnodeLoads(SVnodeMgmt *pMgmt, SMonVloadInfo *pInfo) {
   pInfo->pVloads = taosArrayInit(pMgmt->state.totalVnodes, sizeof(SVnodeLoad));
   if (pInfo->pVloads == NULL) return;
 
@@ -37,7 +37,7 @@ static void vmGetVnodeLoads(SVnodeMgmt *pMgmt, SMonVloadInfo *pInfo) {
   taosRUnLockLatch(&pMgmt->latch);
 }
 
-static void vmGetMonitorInfo(SVnodeMgmt *pMgmt, SMonVmInfo *pInfo) {
+void vmGetMonitorInfo(SVnodeMgmt *pMgmt, SMonVmInfo *pInfo) {
   SMonVloadInfo vloads = {0};
   vmGetVnodeLoads(pMgmt, &vloads);
 
diff --git a/source/dnode/mgmt/node_mgmt/inc/dmMgmt.h b/source/dnode/mgmt/node_mgmt/inc/dmMgmt.h
index 7484c1e18f0e9e555e6f1c51e7d2d3bdad36ad7e..9d092a93bc1fcd8a482a6771c2613515f38e578b 100644
--- a/source/dnode/mgmt/node_mgmt/inc/dmMgmt.h
+++ b/source/dnode/mgmt/node_mgmt/inc/dmMgmt.h
@@ -13,8 +13,8 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef _TD_DND_IMP_H_
-#define _TD_DND_IMP_H_
+#ifndef _TD_DND_MGMT_H_
+#define _TD_DND_MGMT_H_
 
 // tobe deleted
 #include "uv.h"
@@ -165,16 +165,13 @@ SMsgCb  dmGetMsgcb(SDnode *pDnode);
 int32_t dmInitMsgHandle(SDnode *pDnode);
 int32_t dmProcessNodeMsg(SMgmtWrapper *pWrapper, SRpcMsg *pMsg);
 
-// mgmt nodes
-SMgmtFunc dmGetMgmtFunc();
-SMgmtFunc bmGetMgmtFunc();
-SMgmtFunc qmGetMgmtFunc();
-SMgmtFunc smGetMgmtFunc();
-SMgmtFunc vmGetMgmtFunc();
-SMgmtFunc mmGetMgmtFunc();
+// dmMonitor.c
+void dmSendMonitorReport();
+void dmGetVnodeLoads(SMonVloadInfo *pInfo);
+void dmGetMnodeLoads(SMonMloadInfo *pInfo);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /*_TD_DND_IMP_H_*/
\ No newline at end of file
+#endif /*_TD_DND_MGMT_H_*/
\ No newline at end of file
diff --git a/source/dnode/mgmt/node_mgmt/inc/dmNodes.h b/source/dnode/mgmt/node_mgmt/inc/dmNodes.h
new file mode 100644
index 0000000000000000000000000000000000000000..3ac71de530d4dd9dad6ccd6b29b7789f56a85b1e
--- /dev/null
+++ b/source/dnode/mgmt/node_mgmt/inc/dmNodes.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _TD_DND_NODES_H_
+#define _TD_DND_NODES_H_
+
+#include "dmInt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+SMgmtFunc dmGetMgmtFunc();
+SMgmtFunc bmGetMgmtFunc();
+SMgmtFunc qmGetMgmtFunc();
+SMgmtFunc smGetMgmtFunc();
+SMgmtFunc vmGetMgmtFunc();
+SMgmtFunc mmGetMgmtFunc();
+
+void mmGetMonitorInfo(void *pMgmt, SMonMmInfo *pInfo);
+void vmGetMonitorInfo(void *pMgmt, SMonVmInfo *pInfo);
+void qmGetMonitorInfo(void *pMgmt, SMonQmInfo *pInfo);
+void smGetMonitorInfo(void *pMgmt, SMonSmInfo *pInfo);
+void bmGetMonitorInfo(void *pMgmt, SMonBmInfo *pInfo);
+
+void vmGetVnodeLoads(void *pMgmt, SMonVloadInfo *pInfo);
+void mmGetMnodeLoads(void *pMgmt, SMonMloadInfo *pInfo);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_DND_NODES_H_*/
\ No newline at end of file
diff --git a/source/dnode/mgmt/node_mgmt/src/dmEnv.c b/source/dnode/mgmt/node_mgmt/src/dmEnv.c
index af5c0f00db64e16e3b659e9c124fd3f367caa421..07d0c43360a5de639f5af2b64208d13c79192687 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmEnv.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmEnv.c
@@ -168,11 +168,6 @@ static int32_t dmProcessDropNodeReq(EDndNodeType ntype, SRpcMsg *pMsg) {
   return code;
 }
 
-static bool dmIsNodeRequired(EDndNodeType ntype) {
-  SDnode *pDnode = dmInstance();
-  return pDnode->wrappers[ntype].required;
-}
-
 SMgmtInputOpt dmBuildMgmtInputOpt(SMgmtWrapper *pWrapper) {
   SMgmtInputOpt opt = {
       .path = pWrapper->path,
@@ -180,7 +175,9 @@ SMgmtInputOpt dmBuildMgmtInputOpt(SMgmtWrapper *pWrapper) {
       .pData = &pWrapper->pDnode->data,
       .processCreateNodeFp = dmProcessCreateNodeReq,
       .processDropNodeFp = dmProcessDropNodeReq,
-      .isNodeRequiredFp = dmIsNodeRequired,
+      .sendMonitorReportFp = dmSendMonitorReport,
+      .getVnodeLoadsFp = dmGetVnodeLoads,
+      .getMnodeLoadsFp = dmGetMnodeLoads,
   };
 
   opt.msgCb = dmGetMsgcb(pWrapper->pDnode);
diff --git a/source/dnode/mgmt/node_mgmt/src/dmMgmt.c b/source/dnode/mgmt/node_mgmt/src/dmMgmt.c
index 30d7750f79c2aa31cac179f4228d27147e282180..3cbb9ff04601a36326eb80a352b9abebd85e39c6 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmMgmt.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmMgmt.c
@@ -15,6 +15,7 @@
 
 #define _DEFAULT_SOURCE
 #include "dmMgmt.h"
+#include "dmNodes.h"
 
 static bool dmRequireNode(SDnode *pDnode, SMgmtWrapper *pWrapper) {
   SMgmtInputOpt input = dmBuildMgmtInputOpt(pWrapper);
@@ -189,7 +190,7 @@ int32_t dmInitDnode(SDnode *pDnode, EDndNodeType rtype) {
   }
 
   dmReportStartup("dnode-transport", "initialized");
-  dInfo("dnode is created, ptr:%p", pDnode);
+  dDebug("dnode is created, ptr:%p", pDnode);
   code = 0;
 
 _OVER:
@@ -208,7 +209,7 @@ void dmCleanupDnode(SDnode *pDnode) {
   dmCleanupClient(pDnode);
   dmCleanupServer(pDnode);
   dmClearVars(pDnode);
-  dInfo("dnode is closed, ptr:%p", pDnode);
+  dDebug("dnode is closed, ptr:%p", pDnode);
 }
 
 void dmSetStatus(SDnode *pDnode, EDndRunStatus status) {
diff --git a/source/dnode/mgmt/node_mgmt/src/dmMonitor.c b/source/dnode/mgmt/node_mgmt/src/dmMonitor.c
new file mode 100644
index 0000000000000000000000000000000000000000..2497da13ec3313429a6f418ab503c8d5cb06f9b9
--- /dev/null
+++ b/source/dnode/mgmt/node_mgmt/src/dmMonitor.c
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define _DEFAULT_SOURCE
+#include "dmMgmt.h"
+#include "dmNodes.h"
+
+#define dmSendLocalRecv(pDnode, mtype, func, pInfo)         \
+  SRpcMsg rsp = {0};                                        \
+  SRpcMsg req = {.msgType = mtype};                         \
+  SEpSet  epset = {.inUse = 0, .numOfEps = 1};              \
+  tstrncpy(epset.eps[0].fqdn, tsLocalFqdn, TSDB_FQDN_LEN);  \
+  epset.eps[0].port = tsServerPort;                         \
+  rpcSendRecv(pDnode->trans.clientRpc, &epset, &req, &rsp); \
+  if (rsp.code == 0 && rsp.contLen > 0) {                   \
+    func(rsp.pCont, rsp.contLen, pInfo);                    \
+  }                                                         \
+  rpcFreeCont(rsp.pCont);
+
+static void dmGetMonitorBasicInfo(SDnode *pDnode, SMonBasicInfo *pInfo) {
+  pInfo->protocol = 1;
+  pInfo->dnode_id = pDnode->data.dnodeId;
+  pInfo->cluster_id = pDnode->data.clusterId;
+  tstrncpy(pInfo->dnode_ep, tsLocalEp, TSDB_EP_LEN);
+}
+
+static void dmGetMonitorDnodeInfo(SDnode *pDnode, SMonDnodeInfo *pInfo) {
+  pInfo->uptime = (taosGetTimestampMs() - pDnode->data.rebootTime) / (86400000.0f);
+  pInfo->has_mnode = pDnode->wrappers[MNODE].required;
+  pInfo->has_qnode = pDnode->wrappers[QNODE].required;
+  pInfo->has_snode = pDnode->wrappers[SNODE].required;
+  pInfo->has_bnode = pDnode->wrappers[BNODE].required;
+  tstrncpy(pInfo->logdir.name, tsLogDir, sizeof(pInfo->logdir.name));
+  pInfo->logdir.size = tsLogSpace.size;
+  tstrncpy(pInfo->tempdir.name, tsTempDir, sizeof(pInfo->tempdir.name));
+  pInfo->tempdir.size = tsTempSpace.size;
+}
+
+static void dmGetDmMonitorInfo(SDnode *pDnode) {
+  SMonDmInfo dmInfo = {0};
+  dmGetMonitorBasicInfo(pDnode, &dmInfo.basic);
+  dmGetMonitorDnodeInfo(pDnode, &dmInfo.dnode);
+  dmGetMonitorSystemInfo(&dmInfo.sys);
+  monSetDmInfo(&dmInfo);
+}
+
+static void dmGetMmMonitorInfo(SDnode *pDnode) {
+  SMgmtWrapper *pWrapper = &pDnode->wrappers[MNODE];
+  if (dmMarkWrapper(pWrapper) == 0) {
+    SMonMmInfo mmInfo = {0};
+    if (tsMultiProcess) {
+      dmSendLocalRecv(pDnode, TDMT_MON_MM_INFO, tDeserializeSMonMmInfo, &mmInfo);
+    } else if (pWrapper->pMgmt != NULL) {
+      mmGetMonitorInfo(pWrapper->pMgmt, &mmInfo);
+    }
+    dmReleaseWrapper(pWrapper);
+    monSetMmInfo(&mmInfo);
+    tFreeSMonMmInfo(&mmInfo);
+  }
+}
+
+static void dmGetVmMonitorInfo(SDnode *pDnode) {
+  SMgmtWrapper *pWrapper = &pDnode->wrappers[VNODE];
+  if (dmMarkWrapper(pWrapper) == 0) {
+    SMonVmInfo vmInfo = {0};
+    if (tsMultiProcess) {
+      dmSendLocalRecv(pDnode, TDMT_MON_VM_INFO, tDeserializeSMonVmInfo, &vmInfo);
+    } else if (pWrapper->pMgmt != NULL) {
+      vmGetMonitorInfo(pWrapper->pMgmt, &vmInfo);
+    }
+    dmReleaseWrapper(pWrapper);
+    monSetVmInfo(&vmInfo);
+    tFreeSMonVmInfo(&vmInfo);
+  }
+}
+
+static void dmGetQmMonitorInfo(SDnode *pDnode) {
+  SMgmtWrapper *pWrapper = &pDnode->wrappers[QNODE];
+  if (dmMarkWrapper(pWrapper) == 0) {
+    SMonQmInfo qmInfo = {0};
+    if (tsMultiProcess) {
+      dmSendLocalRecv(pDnode, TDMT_MON_QM_INFO, tDeserializeSMonQmInfo, &qmInfo);
+    } else if (pWrapper->pMgmt != NULL) {
+      qmGetMonitorInfo(pWrapper->pMgmt, &qmInfo);
+    }
+    dmReleaseWrapper(pWrapper);
+    monSetQmInfo(&qmInfo);
+    tFreeSMonQmInfo(&qmInfo);
+  }
+}
+
+static void dmGetSmMonitorInfo(SDnode *pDnode) {
+  SMgmtWrapper *pWrapper = &pDnode->wrappers[SNODE];
+  if (dmMarkWrapper(pWrapper) == 0) {
+    SMonSmInfo smInfo = {0};
+    if (tsMultiProcess) {
+      dmSendLocalRecv(pDnode, TDMT_MON_SM_INFO, tDeserializeSMonSmInfo, &smInfo);
+    } else if (pWrapper->pMgmt != NULL) {
+      smGetMonitorInfo(pWrapper->pMgmt, &smInfo);
+    }
+    dmReleaseWrapper(pWrapper);
+    monSetSmInfo(&smInfo);
+    tFreeSMonSmInfo(&smInfo);
+  }
+}
+
+static void dmGetBmMonitorInfo(SDnode *pDnode) {
+  SMgmtWrapper *pWrapper = &pDnode->wrappers[BNODE];
+  if (dmMarkWrapper(pWrapper) == 0) {
+    SMonBmInfo bmInfo = {0};
+    if (tsMultiProcess) {
+      dmSendLocalRecv(pDnode, TDMT_MON_BM_INFO, tDeserializeSMonBmInfo, &bmInfo);
+    } else if (pWrapper->pMgmt != NULL) {
+      bmGetMonitorInfo(pWrapper->pMgmt, &bmInfo);
+    }
+    dmReleaseWrapper(pWrapper);
+    monSetBmInfo(&bmInfo);
+    tFreeSMonBmInfo(&bmInfo);
+  }
+}
+
+void dmSendMonitorReport() {
+  if (!tsEnableMonitor || tsMonitorFqdn[0] == 0 || tsMonitorPort == 0) return;
+  dTrace("send monitor report to %s:%u", tsMonitorFqdn, tsMonitorPort);
+
+  SDnode *pDnode = dmInstance();
+  dmGetDmMonitorInfo(pDnode);
+  dmGetMmMonitorInfo(pDnode);
+  dmGetVmMonitorInfo(pDnode);
+  dmGetQmMonitorInfo(pDnode);
+  dmGetSmMonitorInfo(pDnode);
+  dmGetBmMonitorInfo(pDnode);
+  monSendReport();
+}
+
+void dmGetVnodeLoads(SMonVloadInfo *pInfo) {
+  SDnode       *pDnode = dmInstance();
+  SMgmtWrapper *pWrapper = &pDnode->wrappers[VNODE];
+  if (dmMarkWrapper(pWrapper) == 0) {
+    if (tsMultiProcess) {
+      dmSendLocalRecv(pDnode, TDMT_MON_VM_LOAD, tDeserializeSMonVloadInfo, pInfo);
+    } else if (pWrapper->pMgmt != NULL) {
+      vmGetVnodeLoads(pWrapper->pMgmt, pInfo);
+    }
+    dmReleaseWrapper(pWrapper);
+  }
+}
+
+void dmGetMnodeLoads(SMonMloadInfo *pInfo) {
+  SDnode       *pDnode = dmInstance();
+  SMgmtWrapper *pWrapper = &pDnode->wrappers[MNODE];
+  if (tsMultiProcess) {
+    dmSendLocalRecv(pDnode, TDMT_MON_MM_LOAD, tDeserializeSMonMloadInfo, pInfo);
+  } else if (pWrapper->pMgmt != NULL) {
+    mmGetMnodeLoads(pWrapper->pMgmt, pInfo);
+  }
+  dmReleaseWrapper(pWrapper);
+}
diff --git a/source/dnode/mgmt/node_util/inc/dmUtil.h b/source/dnode/mgmt/node_util/inc/dmUtil.h
index 45bd3e4f64d99dd30e3e4138fcfec10bb47216cd..b0e764bf8e5ee1d35c3323cbeff70ada218b53ec 100644
--- a/source/dnode/mgmt/node_util/inc/dmUtil.h
+++ b/source/dnode/mgmt/node_util/inc/dmUtil.h
@@ -89,21 +89,23 @@ typedef enum {
 
 typedef int32_t (*ProcessCreateNodeFp)(EDndNodeType ntype, SRpcMsg *pMsg);
 typedef int32_t (*ProcessDropNodeFp)(EDndNodeType ntype, SRpcMsg *pMsg);
-typedef bool (*IsNodeRequiredFp)(EDndNodeType ntype);
+typedef void (*SendMonitorReportFp)();
+typedef void (*GetVnodeLoadsFp)();
+typedef void (*GetMnodeLoadsFp)();
 
 typedef struct {
-  int32_t      dnodeId;
-  int64_t      clusterId;
-  int64_t      dnodeVer;
-  int64_t      updateTime;
-  int64_t      rebootTime;
-  bool         dropped;
-  bool         stopped;
-  SEpSet       mnodeEps;
-  SArray      *dnodeEps;
-  SHashObj    *dnodeHash;
-  SRWLatch     latch;
-  SMsgCb       msgCb;
+  int32_t   dnodeId;
+  int64_t   clusterId;
+  int64_t   dnodeVer;
+  int64_t   updateTime;
+  int64_t   rebootTime;
+  bool      dropped;
+  bool      stopped;
+  SEpSet    mnodeEps;
+  SArray   *dnodeEps;
+  SHashObj *dnodeHash;
+  SRWLatch  latch;
+  SMsgCb    msgCb;
 } SDnodeData;
 
 typedef struct {
@@ -113,7 +115,9 @@ typedef struct {
   SMsgCb              msgCb;
   ProcessCreateNodeFp processCreateNodeFp;
   ProcessDropNodeFp   processDropNodeFp;
-  IsNodeRequiredFp    isNodeRequiredFp;
+  SendMonitorReportFp sendMonitorReportFp;
+  GetVnodeLoadsFp     getVnodeLoadsFp;
+  GetMnodeLoadsFp     getMnodeLoadsFp;
 } SMgmtInputOpt;
 
 typedef struct {
diff --git a/source/dnode/mnode/impl/inc/mndDef.h b/source/dnode/mnode/impl/inc/mndDef.h
index a04417736a32d01619a011b17eab23291460ab82..81f4c5ed1ef87431b639d256acde0faa596692fe 100644
--- a/source/dnode/mnode/impl/inc/mndDef.h
+++ b/source/dnode/mnode/impl/inc/mndDef.h
@@ -365,6 +365,8 @@ typedef struct {
   int64_t  uid;
   int64_t  dbUid;
   int32_t  version;
+  int32_t  tagVer;
+  int32_t  colVer;
   int32_t  nextColId;
   float    xFilesFactor;
   int32_t  delay;
diff --git a/source/dnode/mnode/impl/src/mndStb.c b/source/dnode/mnode/impl/src/mndStb.c
index e8a0b31e2f902f4ba878cf3384b5ab47d9801b33..7485510bc6f5db1873dced18e911adfe493a5d24 100644
--- a/source/dnode/mnode/impl/src/mndStb.c
+++ b/source/dnode/mnode/impl/src/mndStb.c
@@ -88,6 +88,8 @@ SSdbRaw *mndStbActionEncode(SStbObj *pStb) {
   SDB_SET_INT64(pRaw, dataPos, pStb->uid, _OVER)
   SDB_SET_INT64(pRaw, dataPos, pStb->dbUid, _OVER)
   SDB_SET_INT32(pRaw, dataPos, pStb->version, _OVER)
+  SDB_SET_INT32(pRaw, dataPos, pStb->tagVer, _OVER)
+  SDB_SET_INT32(pRaw, dataPos, pStb->colVer, _OVER)
   SDB_SET_INT32(pRaw, dataPos, pStb->nextColId, _OVER)
   SDB_SET_INT32(pRaw, dataPos, (int32_t)(pStb->xFilesFactor * 10000), _OVER)
   SDB_SET_INT32(pRaw, dataPos, pStb->delay, _OVER)
@@ -166,6 +168,8 @@ static SSdbRow *mndStbActionDecode(SSdbRaw *pRaw) {
   SDB_GET_INT64(pRaw, dataPos, &pStb->uid, _OVER)
   SDB_GET_INT64(pRaw, dataPos, &pStb->dbUid, _OVER)
   SDB_GET_INT32(pRaw, dataPos, &pStb->version, _OVER)
+  SDB_GET_INT32(pRaw, dataPos, &pStb->tagVer, _OVER)
+  SDB_GET_INT32(pRaw, dataPos, &pStb->colVer, _OVER)
   SDB_GET_INT32(pRaw, dataPos, &pStb->nextColId, _OVER)
   int32_t xFilesFactor = 0;
   SDB_GET_INT32(pRaw, dataPos, &xFilesFactor, _OVER)
@@ -317,6 +321,8 @@ static int32_t mndStbActionUpdate(SSdb *pSdb, SStbObj *pOld, SStbObj *pNew) {
 
   pOld->updateTime = pNew->updateTime;
   pOld->version = pNew->version;
+  pOld->tagVer = pNew->tagVer;
+  pOld->colVer = pNew->colVer;
   pOld->nextColId = pNew->nextColId;
   pOld->ttl = pNew->ttl;
   pOld->numOfColumns = pNew->numOfColumns;
@@ -384,6 +390,8 @@ static void *mndBuildVCreateStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pSt
   req.rollup = pStb->ast1Len > 0 ? 1 : 0;
   req.schema.nCols = pStb->numOfColumns;
   req.schema.sver = pStb->version;
+  req.schema.tagVer = pStb->tagVer;
+  req.schema.colVer = pStb->colVer;
   req.schema.pSchema = pStb->pColumns;
   req.schemaTag.nCols = pStb->numOfTags;
   req.schemaTag.sver = 1;
@@ -657,6 +665,8 @@ int32_t mndBuildStbFromReq(SMnode *pMnode, SStbObj *pDst, SMCreateStbReq *pCreat
   pDst->uid = mndGenerateUid(pCreate->name, TSDB_TABLE_FNAME_LEN);
   pDst->dbUid = pDb->uid;
   pDst->version = 1;
+  pDst->tagVer = 1;
+  pDst->colVer = 1;
   pDst->nextColId = 1;
   pDst->xFilesFactor = pCreate->xFilesFactor;
   pDst->delay = pCreate->delay;
@@ -949,6 +959,7 @@ static int32_t mndAddSuperTableTag(const SStbObj *pOld, SStbObj *pNew, SArray *p
   }
 
   pNew->version++;
+  pNew->tagVer++;
   return 0;
 }
 
@@ -967,6 +978,7 @@ static int32_t mndDropSuperTableTag(const SStbObj *pOld, SStbObj *pNew, const ch
   pNew->numOfTags--;
 
   pNew->version++;
+  pNew->tagVer++;
   mDebug("stb:%s, start to drop tag %s", pNew->name, tagName);
   return 0;
 }
@@ -1007,6 +1019,7 @@ static int32_t mndAlterStbTagName(const SStbObj *pOld, SStbObj *pNew, SArray *pF
   memcpy(pSchema->name, newTagName, TSDB_COL_NAME_LEN);
 
   pNew->version++;
+  pNew->tagVer++;
   mDebug("stb:%s, start to modify tag %s to %s", pNew->name, oldTagName, newTagName);
   return 0;
 }
@@ -1036,6 +1049,7 @@ static int32_t mndAlterStbTagBytes(const SStbObj *pOld, SStbObj *pNew, const SFi
 
   pTag->bytes = pField->bytes;
   pNew->version++;
+  pNew->tagVer++;
 
   mDebug("stb:%s, start to modify tag len %s to %d", pNew->name, pField->name, pField->bytes);
   return 0;
@@ -1075,6 +1089,7 @@ static int32_t mndAddSuperTableColumn(const SStbObj *pOld, SStbObj *pNew, SArray
   }
 
   pNew->version++;
+  pNew->colVer++;
   return 0;
 }
 
@@ -1103,6 +1118,7 @@ static int32_t mndDropSuperTableColumn(const SStbObj *pOld, SStbObj *pNew, const
   pNew->numOfColumns--;
 
   pNew->version++;
+  pNew->colVer++;
   mDebug("stb:%s, start to drop col %s", pNew->name, colName);
   return 0;
 }
@@ -1141,6 +1157,7 @@ static int32_t mndAlterStbColumnBytes(const SStbObj *pOld, SStbObj *pNew, const
 
   pCol->bytes = pField->bytes;
   pNew->version++;
+  pNew->colVer++;
 
   mDebug("stb:%s, start to modify col len %s to %d", pNew->name, pField->name, pField->bytes);
   return 0;
@@ -1300,6 +1317,13 @@ static int32_t mndProcessMAlterStbReq(SRpcMsg *pReq) {
     goto _OVER;
   }
 
+  if (alterReq.verInBlock > 0 && alterReq.verInBlock <= pStb->version) {
+    mDebug("stb:%s, already exist, verInBlock:%d smaller than verInStb:%d, alter success", alterReq.name,
+           alterReq.verInBlock, pStb->version);
+    code = 0;
+    goto _OVER;
+  }
+
   pUser = mndAcquireUser(pMnode, pReq->conn.user);
   if (pUser == NULL) {
     goto _OVER;
diff --git a/source/dnode/mnode/impl/test/stb/stb.cpp b/source/dnode/mnode/impl/test/stb/stb.cpp
index 16974ad54158e29464d29af9f3deede38ca3b1a8..b8873210ab995bde06f6c2baf17d14975bc591e1 100644
--- a/source/dnode/mnode/impl/test/stb/stb.cpp
+++ b/source/dnode/mnode/impl/test/stb/stb.cpp
@@ -32,7 +32,7 @@ class MndTestStb : public ::testing::Test {
   void* BuildAlterStbUpdateTagBytesReq(const char* stbname, const char* tagname, int32_t bytes, int32_t* pContLen);
   void* BuildAlterStbAddColumnReq(const char* stbname, const char* colname, int32_t* pContLen);
   void* BuildAlterStbDropColumnReq(const char* stbname, const char* colname, int32_t* pContLen);
-  void* BuildAlterStbUpdateColumnBytesReq(const char* stbname, const char* colname, int32_t bytes, int32_t* pContLen);
+  void* BuildAlterStbUpdateColumnBytesReq(const char* stbname, const char* colname, int32_t bytes, int32_t* pContLen, int32_t verInBlock);
 };
 
 Testbase MndTestStb::test;
@@ -271,12 +271,13 @@ void* MndTestStb::BuildAlterStbDropColumnReq(const char* stbname, const char* co
 }
 
 void* MndTestStb::BuildAlterStbUpdateColumnBytesReq(const char* stbname, const char* colname, int32_t bytes,
-                                                    int32_t* pContLen) {
+                                                    int32_t* pContLen, int32_t verInBlock) {
   SMAlterStbReq req = {0};
   strcpy(req.name, stbname);
   req.numOfFields = 1;
   req.pFields = taosArrayInit(1, sizeof(SField));
   req.alterType = TSDB_ALTER_TABLE_UPDATE_COLUMN_BYTES;
+  req.verInBlock = verInBlock;
 
   SField field = {0};
   field.bytes = bytes;
@@ -781,31 +782,40 @@ TEST_F(MndTestStb, 08_Alter_Stb_AlterTagBytes) {
   }
 
   {
-    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "col5", 12, &contLen);
+    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "col5", 12, &contLen, 0);
     SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, TSDB_CODE_MND_COLUMN_NOT_EXIST);
   }
 
   {
-    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "ts", 8, &contLen);
+    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "ts", 8, &contLen, 0);
     SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, TSDB_CODE_MND_INVALID_STB_OPTION);
   }
 
   {
-    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "col1", 8, &contLen);
+    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "col1", 8, &contLen, 0);
     SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, TSDB_CODE_MND_INVALID_ROW_BYTES);
   }
 
   {
-    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "col1", TSDB_MAX_BYTES_PER_ROW, &contLen);
+    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "col1", TSDB_MAX_BYTES_PER_ROW, &contLen, 0);
     SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, TSDB_CODE_MND_INVALID_ROW_BYTES);
   }
 
   {
-    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "col1", 20, &contLen);
+    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "col1", 20, &contLen, 0);
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_STB, pReq, contLen);
+    ASSERT_EQ(pRsp->code, 0);
+
+    test.SendShowReq(TSDB_MGMT_TABLE_STB, "user_stables", dbname);
+    EXPECT_EQ(test.GetShowRows(), 1);
+  }
+
+  {
+    void*    pReq = BuildAlterStbUpdateColumnBytesReq(stbname, "col_not_exist", 20, &contLen, 1);
     SRpcMsg* pRsp = test.SendReq(TDMT_MND_ALTER_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, 0);
 
diff --git a/source/libs/function/src/functionMgt.c b/source/libs/function/src/functionMgt.c
index 73ec7f510b83650d58ac9ed569261b9b569bd390..e46cb815617baa7adbf4b59232b3698feb1a6558 100644
--- a/source/libs/function/src/functionMgt.c
+++ b/source/libs/function/src/functionMgt.c
@@ -100,6 +100,10 @@ int32_t fmGetFuncInfo(SFmGetFuncInfoParam* pParam, SFunctionNode* pFunc) {
   return getUdfInfo(pParam, pFunc);
 }
 
+bool fmIsBuiltinFunc(const char* pFunc) {
+  return NULL != taosHashGet(gFunMgtService.pFuncNameHashTable, pFunc, strlen(pFunc));
+}
+
 EFuncDataRequired fmFuncDataRequired(SFunctionNode* pFunc, STimeWindow* pTimeWindow) {
   if (fmIsUserDefinedFunc(pFunc->funcId) || pFunc->funcId < 0 || pFunc->funcId >= funcMgtBuiltinsNum) {
     return FUNC_DATA_REQUIRED_DATA_LOAD;
diff --git a/source/libs/nodes/src/nodesCodeFuncs.c b/source/libs/nodes/src/nodesCodeFuncs.c
index 763ccbf7a02a9fd3649c3e0466304aa4ccc46db0..bc49f36afe121db0c676662c972f088a660f897c 100644
--- a/source/libs/nodes/src/nodesCodeFuncs.c
+++ b/source/libs/nodes/src/nodesCodeFuncs.c
@@ -946,6 +946,23 @@ static int32_t jsonToLogicSubplan(const SJson* pJson, void* pObj) {
   return code;
 }
 
+static const char* jkLogicPlanSubplans = "Subplans";
+
+static int32_t logicPlanToJson(const void* pObj, SJson* pJson) {
+  const SQueryLogicPlan* pNode = (const SQueryLogicPlan*)pObj;
+  return tjsonAddObject(pJson, jkLogicPlanSubplans, nodeToJson, nodesListGetNode(pNode->pTopSubplans, 0));
+}
+
+static int32_t jsonToLogicPlan(const SJson* pJson, void* pObj) {
+  SQueryLogicPlan* pNode = (SQueryLogicPlan*)pObj;
+  SNode*           pChild = NULL;
+  int32_t          code = jsonToNodeObject(pJson, jkLogicPlanSubplans, &pChild);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = nodesListMakeStrictAppend(&pNode->pTopSubplans, pChild);
+  }
+  return code;
+}
+
 static const char* jkJoinLogicPlanJoinType = "JoinType";
 static const char* jkJoinLogicPlanOnConditions = "OnConditions";
 
@@ -3029,7 +3046,7 @@ static int32_t specificNodeToJson(const void* pObj, SJson* pJson) {
     case QUERY_NODE_LOGIC_SUBPLAN:
       return logicSubplanToJson(pObj, pJson);
     case QUERY_NODE_LOGIC_PLAN:
-      break;
+      return logicPlanToJson(pObj, pJson);
     case QUERY_NODE_PHYSICAL_PLAN_TAG_SCAN:
       return physiTagScanNodeToJson(pObj, pJson);
     case QUERY_NODE_PHYSICAL_PLAN_TABLE_SCAN:
@@ -3126,6 +3143,8 @@ static int32_t jsonToSpecificNode(const SJson* pJson, void* pObj) {
       return jsonToLogicPartitionNode(pJson, pObj);
     case QUERY_NODE_LOGIC_SUBPLAN:
       return jsonToLogicSubplan(pJson, pObj);
+    case QUERY_NODE_LOGIC_PLAN:
+      return jsonToLogicPlan(pJson, pObj);
     case QUERY_NODE_PHYSICAL_PLAN_TAG_SCAN:
       return jsonToPhysiTagScanNode(pJson, pObj);
     case QUERY_NODE_PHYSICAL_PLAN_TABLE_SCAN:
diff --git a/source/libs/parser/src/parAstCreater.c b/source/libs/parser/src/parAstCreater.c
index 894659ddd15f52144727117aa076fede9087eadc..80c4593d9bb683788953d0410f654b813d0c126a 100644
--- a/source/libs/parser/src/parAstCreater.c
+++ b/source/libs/parser/src/parAstCreater.c
@@ -196,6 +196,15 @@ static bool checkIndexName(SAstCreateContext* pCxt, SToken* pIndexName) {
   return true;
 }
 
+static bool checkComment(SAstCreateContext* pCxt, const SToken* pCommentToken, bool demand) {
+  if (NULL == pCommentToken) {
+    pCxt->errCode = demand ? TSDB_CODE_PAR_SYNTAX_ERROR : TSDB_CODE_SUCCESS;
+  } else if (pCommentToken->n >= (TSDB_TB_COMMENT_LEN + 2)) {
+    pCxt->errCode = generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_COMMENT_TOO_LONG);
+  }
+  return TSDB_CODE_SUCCESS == pCxt->errCode;
+}
+
 SNode* createRawExprNode(SAstCreateContext* pCxt, const SToken* pToken, SNode* pNode) {
   SRawExprNode* target = (SRawExprNode*)nodesMakeNode(QUERY_NODE_RAW_EXPR);
   CHECK_OUT_OF_MEM(target);
@@ -823,8 +832,10 @@ SNode* createAlterTableOptions(SAstCreateContext* pCxt) {
 SNode* setTableOption(SAstCreateContext* pCxt, SNode* pOptions, ETableOptionType type, void* pVal) {
   switch (type) {
     case TABLE_OPTION_COMMENT:
-      copyStringFormStringToken((SToken*)pVal, ((STableOptions*)pOptions)->comment,
-                                sizeof(((STableOptions*)pOptions)->comment));
+      if (checkComment(pCxt, (SToken*)pVal, true)) {
+        copyStringFormStringToken((SToken*)pVal, ((STableOptions*)pOptions)->comment,
+                                  sizeof(((STableOptions*)pOptions)->comment));
+      }
       break;
     case TABLE_OPTION_DELAY:
       ((STableOptions*)pOptions)->delay = taosStr2Int32(((SToken*)pVal)->z, NULL, 10);
@@ -848,7 +859,7 @@ SNode* setTableOption(SAstCreateContext* pCxt, SNode* pOptions, ETableOptionType
 }
 
 SNode* createColumnDefNode(SAstCreateContext* pCxt, SToken* pColName, SDataType dataType, const SToken* pComment) {
-  if (!checkColumnName(pCxt, pColName)) {
+  if (!checkColumnName(pCxt, pColName) || !checkComment(pCxt, pComment, false)) {
     return NULL;
   }
   SColumnDefNode* pCol = (SColumnDefNode*)nodesMakeNode(QUERY_NODE_COLUMN_DEF);
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 0d214fd85e38cfe5500696115e9400f0298bde98..074a5bc30cd298deb40433eda34868225106472e 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -272,6 +272,10 @@ static bool isTimelineFunc(const SNode* pNode) {
   return (QUERY_NODE_FUNCTION == nodeType(pNode) && fmIsTimelineFunc(((SFunctionNode*)pNode)->funcId));
 }
 
+static bool isScanPseudoColumnFunc(const SNode* pNode) {
+  return (QUERY_NODE_FUNCTION == nodeType(pNode) && fmIsScanPseudoColumnFunc(((SFunctionNode*)pNode)->funcId));
+}
+
 static bool isDistinctOrderBy(STranslateContext* pCxt) {
   return (SQL_CLAUSE_ORDER_BY == pCxt->currClause && pCxt->pCurrStmt->isDistinct);
 }
@@ -892,7 +896,7 @@ static EDealRes doCheckExprForGroupBy(SNode** pNode, void* pContext) {
       return DEAL_RES_IGNORE_CHILD;
     }
   }
-  if (QUERY_NODE_COLUMN == nodeType(*pNode)) {
+  if (isScanPseudoColumnFunc(*pNode) || QUERY_NODE_COLUMN == nodeType(*pNode)) {
     if (pCxt->selectFuncNum > 1) {
       return generateDealNodeErrMsg(pCxt->pTranslateCxt, getGroupByErrorCode(pCxt->pTranslateCxt));
     } else {
@@ -930,7 +934,7 @@ static EDealRes rewriteColsToSelectValFuncImpl(SNode** pNode, void* pContext) {
   if (isAggFunc(*pNode)) {
     return DEAL_RES_IGNORE_CHILD;
   }
-  if (QUERY_NODE_COLUMN == nodeType(*pNode)) {
+  if (isScanPseudoColumnFunc(*pNode) || QUERY_NODE_COLUMN == nodeType(*pNode)) {
     return rewriteColToSelectValFunc((STranslateContext*)pContext, NULL, pNode);
   }
   return DEAL_RES_CONTINUE;
@@ -958,7 +962,7 @@ static EDealRes doCheckAggColCoexist(SNode* pNode, void* pContext) {
     pCxt->existAggFunc = true;
     return DEAL_RES_IGNORE_CHILD;
   }
-  if (QUERY_NODE_COLUMN == nodeType(pNode)) {
+  if (isScanPseudoColumnFunc(pNode) || QUERY_NODE_COLUMN == nodeType(pNode)) {
     pCxt->existCol = true;
   }
   return DEAL_RES_CONTINUE;
@@ -3261,6 +3265,9 @@ static int32_t readFromFile(char* pName, int32_t* len, char** buf) {
 }
 
 static int32_t translateCreateFunction(STranslateContext* pCxt, SCreateFunctionStmt* pStmt) {
+  if (fmIsBuiltinFunc(pStmt->funcName)) {
+    return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_FUNCTION_NAME);
+  }
   SCreateFuncReq req = {0};
   strcpy(req.name, pStmt->funcName);
   req.igExists = pStmt->ignoreExists;
diff --git a/source/libs/parser/src/parUtil.c b/source/libs/parser/src/parUtil.c
index 1ae066a8c251601a2ba2f94719b2df18a4b69f69..7b9147beab4ebd83430fc569ea78d0effd575631 100644
--- a/source/libs/parser/src/parUtil.c
+++ b/source/libs/parser/src/parUtil.c
@@ -160,6 +160,10 @@ static char* getSyntaxErrFormat(int32_t errCode) {
       return "Only binary/nchar column length could be modified";
     case TSDB_CODE_PAR_INVALID_TBNAME:
       return "Invalid tbname pseudo column";
+    case TSDB_CODE_PAR_INVALID_FUNCTION_NAME:
+      return "Invalid function name";
+    case TSDB_CODE_PAR_COMMENT_TOO_LONG:
+      return "Comment too long";
     case TSDB_CODE_OUT_OF_MEMORY:
       return "Out of memory";
     default:
diff --git a/source/libs/planner/src/planSpliter.c b/source/libs/planner/src/planSpliter.c
index d0ac239bcb9b0a82cda60a5e9b63452b61ca344a..fb716af3e5563a6adf9f6c239c9c946c9b5d9be9 100644
--- a/source/libs/planner/src/planSpliter.c
+++ b/source/libs/planner/src/planSpliter.c
@@ -24,6 +24,7 @@
 #define SPLIT_FLAG_TEST_MASK(val, mask) (((val) & (mask)) != 0)
 
 typedef struct SSplitContext {
+  int32_t queryId;
   int32_t groupId;
   bool    split;
 } SSplitContext;
@@ -62,6 +63,7 @@ static SLogicSubplan* splCreateScanSubplan(SSplitContext* pCxt, SScanLogicNode*
   if (NULL == pSubplan) {
     return NULL;
   }
+  pSubplan->id.queryId = pCxt->queryId;
   pSubplan->id.groupId = pCxt->groupId;
   pSubplan->subplanType = SUBPLAN_TYPE_SCAN;
   pSubplan->pNode = (SLogicNode*)nodesCloneNode(pScan);
@@ -242,6 +244,7 @@ static SLogicSubplan* unionCreateSubplan(SSplitContext* pCxt, SLogicNode* pNode)
   if (NULL == pSubplan) {
     return NULL;
   }
+  pSubplan->id.queryId = pCxt->queryId;
   pSubplan->id.groupId = pCxt->groupId;
   pSubplan->subplanType = SUBPLAN_TYPE_SCAN;
   pSubplan->pNode = pNode;
@@ -406,7 +409,7 @@ static const SSplitRule splitRuleSet[] = {{.pName = "SuperTableScan", .splitFunc
 static const int32_t splitRuleNum = (sizeof(splitRuleSet) / sizeof(SSplitRule));
 
 static int32_t applySplitRule(SLogicSubplan* pSubplan) {
-  SSplitContext cxt = {.groupId = pSubplan->id.groupId + 1, .split = false};
+  SSplitContext cxt = {.queryId = pSubplan->id.queryId, .groupId = pSubplan->id.groupId + 1, .split = false};
   do {
     cxt.split = false;
     for (int32_t i = 0; i < splitRuleNum; ++i) {
diff --git a/source/libs/planner/test/planSetOpTest.cpp b/source/libs/planner/test/planSetOpTest.cpp
index 3c7bf9e43a34f88166a0b7716a38db03d56f224b..717384aae69fe26973216c996aef199954225e23 100644
--- a/source/libs/planner/test/planSetOpTest.cpp
+++ b/source/libs/planner/test/planSetOpTest.cpp
@@ -32,6 +32,15 @@ TEST_F(PlanSetOpTest, unionAllSubquery) {
   run("SELECT * FROM (SELECT c1, c2 FROM t1 UNION ALL SELECT c1, c2 FROM t1)");
 }
 
+TEST_F(PlanSetOpTest, unionAllWithSubquery) {
+  useDb("root", "test");
+
+  // child table
+  run("SELECT ts FROM (SELECT ts FROM st1s1) UNION ALL SELECT ts FROM (SELECT ts FROM st1s2)");
+  // super table
+  run("SELECT ts FROM (SELECT ts FROM st1) UNION ALL SELECT ts FROM (SELECT ts FROM st1)");
+}
+
 TEST_F(PlanSetOpTest, union) {
   useDb("root", "test");
 
diff --git a/source/libs/planner/test/planTestUtil.cpp b/source/libs/planner/test/planTestUtil.cpp
index af8ec8715876624d79ccb4f9d09eb1a40b8ad4d2..94a28f46a82de78fd038f05682f0521796b716fe 100644
--- a/source/libs/planner/test/planTestUtil.cpp
+++ b/source/libs/planner/test/planTestUtil.cpp
@@ -322,6 +322,7 @@ class PlannerTestBaseImpl {
   }
 
   void setPlanContext(SQuery* pQuery, SPlanContext* pCxt) {
+    pCxt->queryId = 1;
     if (QUERY_NODE_CREATE_TOPIC_STMT == nodeType(pQuery->pRoot)) {
       pCxt->pAstRoot = ((SCreateTopicStmt*)pQuery->pRoot)->pQuery;
       pCxt->topicQuery = true;