diff --git a/include/common/tcommon.h b/include/common/tcommon.h
index d88747eb928986ab0e242901bb354b7fd9e77493..72d969a0d54be5c547d984e5b80750093180fcd7 100644
--- a/include/common/tcommon.h
+++ b/include/common/tcommon.h
@@ -195,7 +195,7 @@ typedef struct SDataBlockInfo {
   uint32_t    capacity;
   SBlockID    id;
   int16_t     hasVarCol;
-  int16_t     dataLoad;   // denote if the data is loaded or not
+  int16_t     dataLoad;  // denote if the data is loaded or not
 
   // TODO: optimize and remove following
   int64_t     version;    // used for stream, and need serialization
@@ -204,8 +204,8 @@ typedef struct SDataBlockInfo {
   STimeWindow calWin;     // used for stream, do not serialize
   TSKEY       watermark;  // used for stream
 
-  char        parTbName[TSDB_TABLE_NAME_LEN];  // used for stream partition
-  STag*       pTag;                            // used for stream partition
+  char  parTbName[TSDB_TABLE_NAME_LEN];  // used for stream partition
+  STag* pTag;                            // used for stream partition
 } SDataBlockInfo;
 
 typedef struct SSDataBlock {
@@ -239,22 +239,22 @@ typedef struct SVarColAttr {
 // pBlockAgg->numOfNull == info.rows, all data are null
 // pBlockAgg->numOfNull == 0, no data are null.
 typedef struct SColumnInfoData {
-  char*         pData;       // the corresponding block data in memory
+  char* pData;  // the corresponding block data in memory
   union {
     char*       nullbitmap;  // bitmap, one bit for each item in the list
     SVarColAttr varmeta;
   };
-  SColumnInfo   info;        // column info
-  bool          hasNull;     // if current column data has null value.
+  SColumnInfo info;     // column info
+  bool        hasNull;  // if current column data has null value.
 } SColumnInfoData;
 
 typedef struct SQueryTableDataCond {
   uint64_t     suid;
-  int32_t      order;    // desc|asc order to iterate the data block
+  int32_t      order;  // desc|asc order to iterate the data block
   int32_t      numOfCols;
   SColumnInfo* colList;
-  int32_t*     pSlotList; // the column output destation slot, and it may be null
-  int32_t      type;     // data block load type:
+  int32_t*     pSlotList;  // the column output destation slot, and it may be null
+  int32_t      type;       // data block load type:
   STimeWindow  twindows;
   int64_t      startVersion;
   int64_t      endVersion;
@@ -300,6 +300,7 @@ typedef struct STableBlockDistInfo {
   int32_t  firstSeekTimeUs;
   uint32_t numOfInmemRows;
   uint32_t numOfSmallBlocks;
+  uint32_t numOfVgroups;
   int32_t  blockRowsHisto[20];
 } STableBlockDistInfo;
 
diff --git a/source/libs/executor/src/sysscanoperator.c b/source/libs/executor/src/sysscanoperator.c
index 88d9fb1a1f5b4a4f52fead820c4b00981d64e01e..6516c2c920f702b352c4161ff423571e3a7059a8 100644
--- a/source/libs/executor/src/sysscanoperator.c
+++ b/source/libs/executor/src/sysscanoperator.c
@@ -81,10 +81,10 @@ typedef struct MergeIndex {
 } MergeIndex;
 
 typedef struct SBlockDistInfo {
-    SSDataBlock* pResBlock;
-    STsdbReader* pHandle;
-    SReadHandle  readHandle;
-    uint64_t     uid;  // table uid
+  SSDataBlock* pResBlock;
+  STsdbReader* pHandle;
+  SReadHandle  readHandle;
+  uint64_t     uid;  // table uid
 } SBlockDistInfo;
 
 static int32_t sysChkFilter__Comm(SNode* pNode);
@@ -129,10 +129,10 @@ static char* SYSTABLE_IDX_COLUMN[] = {"table_name", "db_name",     "create_time"
 
 static char* SYSTABLE_SPECIAL_COL[] = {"db_name", "vgroup_id"};
 
-static int32_t buildSysDbTableInfo(const SSysTableScanInfo* pInfo, int32_t capacity);
-static SSDataBlock* buildInfoSchemaTableMetaBlock(char* tableName);
-static void destroySysScanOperator(void* param);
-static int32_t loadSysTableCallback(void* param, SDataBuf* pMsg, int32_t code);
+static int32_t        buildSysDbTableInfo(const SSysTableScanInfo* pInfo, int32_t capacity);
+static SSDataBlock*   buildInfoSchemaTableMetaBlock(char* tableName);
+static void           destroySysScanOperator(void* param);
+static int32_t        loadSysTableCallback(void* param, SDataBuf* pMsg, int32_t code);
 static __optSysFilter optSysGetFilterFunc(int32_t ctype, bool* reverse);
 
 static int32_t sysTableUserTagsFillOneTableTags(const SSysTableScanInfo* pInfo, SMetaReader* smrSuperTable,
@@ -199,11 +199,11 @@ int32_t sysFilte__TableName(void* arg, SNode* pNode, SArray* result) {
   if (func == NULL) return -1;
 
   SMetaFltParam param = {.suid = 0,
-      .cid = 0,
-      .type = TSDB_DATA_TYPE_VARCHAR,
-      .val = pVal->datum.p,
-      .reverse = reverse,
-      .filterFunc = func};
+                         .cid = 0,
+                         .type = TSDB_DATA_TYPE_VARCHAR,
+                         .val = pVal->datum.p,
+                         .reverse = reverse,
+                         .filterFunc = func};
   return -1;
 }
 
@@ -218,11 +218,11 @@ int32_t sysFilte__CreateTime(void* arg, SNode* pNode, SArray* result) {
   if (func == NULL) return -1;
 
   SMetaFltParam param = {.suid = 0,
-      .cid = 0,
-      .type = TSDB_DATA_TYPE_BIGINT,
-      .val = &pVal->datum.i,
-      .reverse = reverse,
-      .filterFunc = func};
+                         .cid = 0,
+                         .type = TSDB_DATA_TYPE_BIGINT,
+                         .val = &pVal->datum.i,
+                         .reverse = reverse,
+                         .filterFunc = func};
 
   int32_t ret = metaFilterCreateTime(pMeta, &param, result);
   return ret;
@@ -350,9 +350,9 @@ static int32_t optSysMergeRslt(SArray* mRslt, SArray* rslt);
 static SSDataBlock* sysTableScanFromMNode(SOperatorInfo* pOperator, SSysTableScanInfo* pInfo, const char* name,
                                           SExecTaskInfo* pTaskInfo);
 void                extractTbnameSlotId(SSysTableScanInfo* pInfo, const SScanPhysiNode* pScanNode);
-static void sysTableScanFillTbName(SOperatorInfo* pOperator, const SSysTableScanInfo* pInfo,
-                                                 const char* name, SSDataBlock* pBlock);
-__optSysFilter optSysGetFilterFunc(int32_t ctype, bool* reverse) {
+static void         sysTableScanFillTbName(SOperatorInfo* pOperator, const SSysTableScanInfo* pInfo, const char* name,
+                                           SSDataBlock* pBlock);
+__optSysFilter      optSysGetFilterFunc(int32_t ctype, bool* reverse) {
   if (ctype == OP_TYPE_LOWER_EQUAL || ctype == OP_TYPE_LOWER_THAN) {
     *reverse = true;
   }
@@ -516,9 +516,10 @@ static SSDataBlock* sysTableScanUserTags(SOperatorInfo* pOperator) {
       metaTbCursorPrev(pInfo->pCur);
       blockFull = true;
     } else {
-      sysTableUserTagsFillOneTableTags(pInfo, &smrSuperTable, &pInfo->pCur->mr, dbname, tableName, &numOfRows, dataBlock);
+      sysTableUserTagsFillOneTableTags(pInfo, &smrSuperTable, &pInfo->pCur->mr, dbname, tableName, &numOfRows,
+                                       dataBlock);
     }
-    
+
     metaReaderClear(&smrSuperTable);
 
     if (blockFull || numOfRows >= pOperator->resultInfo.capacity) {
@@ -1343,7 +1344,7 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator) {
       setOperatorCompleted(pOperator);
     }
 
-    return pBlock->info.rows > 0? pBlock:NULL;
+    return pBlock->info.rows > 0 ? pBlock : NULL;
   } else {
     return NULL;
   }
@@ -1357,7 +1358,7 @@ static void sysTableScanFillTbName(SOperatorInfo* pOperator, const SSysTableScan
 
   if (pInfo->tbnameSlotId != -1) {
     SColumnInfoData* pColumnInfoData = (SColumnInfoData*)taosArrayGet(pBlock->pDataBlock, pInfo->tbnameSlotId);
-    char varTbName[TSDB_TABLE_FNAME_LEN - 1 + VARSTR_HEADER_SIZE] = {0};
+    char             varTbName[TSDB_TABLE_FNAME_LEN - 1 + VARSTR_HEADER_SIZE] = {0};
     memcpy(varDataVal(varTbName), name, strlen(name));
     varDataSetLen(varTbName, strlen(name));
 
@@ -1489,10 +1490,11 @@ SOperatorInfo* createSysTableScanOperatorInfo(void* readHandle, SSystemTableScan
   setOperatorInfo(pOperator, "SysTableScanOperator", QUERY_NODE_PHYSICAL_PLAN_SYSTABLE_SCAN, false, OP_NOT_OPENED,
                   pInfo, pTaskInfo);
   pOperator->exprSupp.numOfExprs = taosArrayGetSize(pInfo->pRes->pDataBlock);
-  pOperator->fpSet = createOperatorFpSet(optrDummyOpenFn, doSysTableScan, NULL, destroySysScanOperator, optrDefaultBufFn, NULL);
+  pOperator->fpSet =
+      createOperatorFpSet(optrDummyOpenFn, doSysTableScan, NULL, destroySysScanOperator, optrDefaultBufFn, NULL);
   return pOperator;
 
-  _error:
+_error:
   if (pInfo != NULL) {
     destroySysScanOperator(pInfo);
   }
@@ -1927,7 +1929,7 @@ static SSDataBlock* doBlockInfoScan(SOperatorInfo* pOperator) {
   // make the valgrind happy that all memory buffer has been initialized already.
   if (slotId != 0) {
     SColumnInfoData* p1 = taosArrayGet(pBlock->pDataBlock, 0);
-    int64_t v = 0;
+    int64_t          v = 0;
     colDataAppendInt64(p1, 0, &v);
   }
 
@@ -1937,10 +1939,10 @@ static SSDataBlock* doBlockInfoScan(SOperatorInfo* pOperator) {
 }
 
 static void destroyBlockDistScanOperatorInfo(void* param) {
-    SBlockDistInfo* pDistInfo = (SBlockDistInfo*)param;
-    blockDataDestroy(pDistInfo->pResBlock);
-    tsdbReaderClose(pDistInfo->pHandle);
-    taosMemoryFreeClear(param);
+  SBlockDistInfo* pDistInfo = (SBlockDistInfo*)param;
+  blockDataDestroy(pDistInfo->pResBlock);
+  tsdbReaderClose(pDistInfo->pHandle);
+  taosMemoryFreeClear(param);
 }
 
 static int32_t initTableblockDistQueryCond(uint64_t uid, SQueryTableDataCond* pCond) {
@@ -2001,7 +2003,7 @@ SOperatorInfo* createDataBlockInfoScanOperator(SReadHandle* readHandle, SBlockDi
   }
 
   pInfo->readHandle = *readHandle;
-  pInfo->uid = (pBlockScanNode->suid != 0)? pBlockScanNode->suid:pBlockScanNode->uid;
+  pInfo->uid = (pBlockScanNode->suid != 0) ? pBlockScanNode->suid : pBlockScanNode->uid;
 
   int32_t    numOfCols = 0;
   SExprInfo* pExprInfo = createExprInfo(pBlockScanNode->pScanPseudoCols, NULL, &numOfCols);
@@ -2012,8 +2014,8 @@ SOperatorInfo* createDataBlockInfoScanOperator(SReadHandle* readHandle, SBlockDi
 
   setOperatorInfo(pOperator, "DataBlockDistScanOperator", QUERY_NODE_PHYSICAL_PLAN_BLOCK_DIST_SCAN, false,
                   OP_NOT_OPENED, pInfo, pTaskInfo);
-  pOperator->fpSet =
-      createOperatorFpSet(optrDummyOpenFn, doBlockInfoScan, NULL, destroyBlockDistScanOperatorInfo, optrDefaultBufFn, NULL);
+  pOperator->fpSet = createOperatorFpSet(optrDummyOpenFn, doBlockInfoScan, NULL, destroyBlockDistScanOperatorInfo,
+                                         optrDefaultBufFn, NULL);
   return pOperator;
 
 _error:
diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index 50ceda4605393b224eac68553091c3bc320f166e..e42812db56f0faf96673b2d6d066d4c20f8c9416 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -775,13 +775,13 @@ int32_t maxFunction(SqlFunctionCtx* pCtx) {
 
 static int32_t setNullSelectivityValue(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t rowIndex);
 static int32_t setSelectivityValue(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, const STuplePos* pTuplePos,
-                                int32_t rowIndex);
+                                   int32_t rowIndex);
 
 int32_t minmaxFunctionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   int32_t code = TSDB_CODE_SUCCESS;
 
   SResultRowEntryInfo* pEntryInfo = GET_RES_INFO(pCtx);
-  SMinmaxResInfo* pRes = GET_ROWCELL_INTERBUF(pEntryInfo);
+  SMinmaxResInfo*      pRes = GET_ROWCELL_INTERBUF(pEntryInfo);
 
   int32_t slotId = pCtx->pExpr->base.resSchema.slotId;
   int32_t currentRow = pBlock->info.rows;
@@ -795,7 +795,7 @@ int32_t minmaxFunctionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
       case TSDB_DATA_TYPE_UBIGINT:
       case TSDB_DATA_TYPE_BIGINT:
         ((int64_t*)pCol->pData)[currentRow] = pRes->v;
-//        colDataAppendInt64(pCol, currentRow, &pRes->v);
+        //        colDataAppendInt64(pCol, currentRow, &pRes->v);
         break;
       case TSDB_DATA_TYPE_UINT:
       case TSDB_DATA_TYPE_INT:
@@ -1691,7 +1691,7 @@ int32_t percentileFunction(SqlFunctionCtx* pCtx) {
 
 int32_t percentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SVariant* pVal = &pCtx->param[1].param;
-  int32_t code = 0;
+  int32_t   code = 0;
   double    v = 0;
 
   GET_TYPED_DATA(v, double, pVal->nType, &pVal->i);
@@ -2070,7 +2070,7 @@ static void prepareBuf(SqlFunctionCtx* pCtx) {
 }
 
 static int32_t firstlastSaveTupleData(const SSDataBlock* pSrcBlock, int32_t rowIndex, SqlFunctionCtx* pCtx,
-                                   SFirstLastRes* pInfo) {
+                                      SFirstLastRes* pInfo) {
   int32_t code = TSDB_CODE_SUCCESS;
 
   if (pCtx->subsidiaries.num <= 0) {
@@ -2123,7 +2123,8 @@ int32_t firstFunction(SqlFunctionCtx* pCtx) {
   }
 
   // All null data column, return directly.
-  if (pInput->colDataSMAIsSet && (pInput->pColumnDataAgg[0]->numOfNull == pInput->totalRows) && pInputCol->hasNull == true) {
+  if (pInput->colDataSMAIsSet && (pInput->pColumnDataAgg[0]->numOfNull == pInput->totalRows) &&
+      pInputCol->hasNull == true) {
     // save selectivity value for column consisted of all null values
     int32_t code = firstlastSaveTupleData(pCtx->pSrcBlock, pInput->startRowIndex, pCtx, pInfo);
     if (code != TSDB_CODE_SUCCESS) {
@@ -2239,7 +2240,8 @@ int32_t lastFunction(SqlFunctionCtx* pCtx) {
   }
 
   // All null data column, return directly.
-  if (pInput->colDataSMAIsSet && (pInput->pColumnDataAgg[0]->numOfNull == pInput->totalRows) && pInputCol->hasNull == true) {
+  if (pInput->colDataSMAIsSet && (pInput->pColumnDataAgg[0]->numOfNull == pInput->totalRows) &&
+      pInputCol->hasNull == true) {
     // save selectivity value for column consisted of all null values
     int32_t code = firstlastSaveTupleData(pCtx->pSrcBlock, pInput->startRowIndex, pCtx, pInfo);
     if (code != TSDB_CODE_SUCCESS) {
@@ -2333,7 +2335,7 @@ int32_t lastFunction(SqlFunctionCtx* pCtx) {
       }
 
       if (pResInfo->numOfRes == 0 || pInfo->ts < cts) {
-        char* data = colDataGetData(pInputCol, chosen);
+        char*   data = colDataGetData(pInputCol, chosen);
         int32_t code = doSaveCurrentVal(pCtx, i, cts, type, data);
         if (code != TSDB_CODE_SUCCESS) {
           return code;
@@ -2344,7 +2346,7 @@ int32_t lastFunction(SqlFunctionCtx* pCtx) {
 
     for (int32_t i = pInput->startRowIndex + round * 4; i < pInput->startRowIndex + pInput->numOfRows; ++i) {
       if (pResInfo->numOfRes == 0 || pInfo->ts < pts[i]) {
-        char* data = colDataGetData(pInputCol, i);
+        char*   data = colDataGetData(pInputCol, i);
         int32_t code = doSaveCurrentVal(pCtx, i, pts[i], type, data);
         if (code != TSDB_CODE_SUCCESS) {
           return code;
@@ -2361,7 +2363,7 @@ int32_t lastFunction(SqlFunctionCtx* pCtx) {
       numOfElems++;
 
       if (pResInfo->numOfRes == 0 || pInfo->ts < pts[i]) {
-        char* data = colDataGetData(pInputCol, i);
+        char*   data = colDataGetData(pInputCol, i);
         int32_t code = doSaveCurrentVal(pCtx, i, pts[i], type, data);
         if (code != TSDB_CODE_SUCCESS) {
           return code;
@@ -2408,7 +2410,7 @@ static int32_t firstLastTransferInfoImpl(SFirstLastRes* pInput, SFirstLastRes* p
 }
 
 static int32_t firstLastTransferInfo(SqlFunctionCtx* pCtx, SFirstLastRes* pInput, SFirstLastRes* pOutput, bool isFirst,
-                                  int32_t rowIndex) {
+                                     int32_t rowIndex) {
   if (TSDB_CODE_SUCCESS == firstLastTransferInfoImpl(pInput, pOutput, isFirst)) {
     int32_t code = firstlastSaveTupleData(pCtx->pSrcBlock, rowIndex, pCtx, pOutput);
     if (code != TSDB_CODE_SUCCESS) {
@@ -2435,7 +2437,7 @@ static int32_t firstLastFunctionMergeImpl(SqlFunctionCtx* pCtx, bool isFirstQuer
   for (int32_t i = start; i < start + pInput->numOfRows; ++i) {
     char*          data = colDataGetData(pCol, i);
     SFirstLastRes* pInputInfo = (SFirstLastRes*)varDataVal(data);
-    int32_t code = firstLastTransferInfo(pCtx, pInputInfo, pInfo, isFirstQuery, i);
+    int32_t        code = firstLastTransferInfo(pCtx, pInputInfo, pInfo, isFirstQuery, i);
     if (code != TSDB_CODE_SUCCESS) {
       return code;
     }
@@ -2667,7 +2669,7 @@ static int32_t doSetPrevVal(SDiffInfo* pDiffInfo, int32_t type, const char* pv,
 }
 
 static int32_t doHandleDiff(SDiffInfo* pDiffInfo, int32_t type, const char* pv, SColumnInfoData* pOutput, int32_t pos,
-                         int32_t order, int64_t ts) {
+                            int32_t order, int64_t ts) {
   int32_t factor = (order == TSDB_ORDER_ASC) ? 1 : -1;
   pDiffInfo->prevTs = ts;
   switch (type) {
@@ -2875,8 +2877,8 @@ static STopBotRes* getTopBotOutputInfo(SqlFunctionCtx* pCtx) {
   return pRes;
 }
 
-static int32_t doAddIntoResult(SqlFunctionCtx* pCtx, void* pData, int32_t rowIndex, SSDataBlock* pSrcBlock, uint16_t type,
-                               uint64_t uid, SResultRowEntryInfo* pEntryInfo, bool isTopQuery);
+static int32_t doAddIntoResult(SqlFunctionCtx* pCtx, void* pData, int32_t rowIndex, SSDataBlock* pSrcBlock,
+                               uint16_t type, uint64_t uid, SResultRowEntryInfo* pEntryInfo, bool isTopQuery);
 
 static void addResult(SqlFunctionCtx* pCtx, STopBotResItem* pSourceItem, int16_t type, bool isTopQuery);
 
@@ -2897,7 +2899,7 @@ int32_t topFunction(SqlFunctionCtx* pCtx) {
     }
 
     numOfElems++;
-    char* data = colDataGetData(pCol, i);
+    char*   data = colDataGetData(pCol, i);
     int32_t code = doAddIntoResult(pCtx, data, i, pCtx->pSrcBlock, pRes->type, pInput->uid, pResInfo, true);
     if (code != TSDB_CODE_SUCCESS) {
       return code;
@@ -2931,7 +2933,7 @@ int32_t bottomFunction(SqlFunctionCtx* pCtx) {
     }
 
     numOfElems++;
-    char* data = colDataGetData(pCol, i);
+    char*   data = colDataGetData(pCol, i);
     int32_t code = doAddIntoResult(pCtx, data, i, pCtx->pSrcBlock, pRes->type, pInput->uid, pResInfo, false);
     if (code != TSDB_CODE_SUCCESS) {
       return code;
@@ -2983,7 +2985,7 @@ static int32_t topBotResComparFn(const void* p1, const void* p2, const void* par
 }
 
 int32_t doAddIntoResult(SqlFunctionCtx* pCtx, void* pData, int32_t rowIndex, SSDataBlock* pSrcBlock, uint16_t type,
-                     uint64_t uid, SResultRowEntryInfo* pEntryInfo, bool isTopQuery) {
+                        uint64_t uid, SResultRowEntryInfo* pEntryInfo, bool isTopQuery) {
   STopBotRes* pRes = getTopBotOutputInfo(pCtx);
 
   SVariant val = {0};
@@ -3174,7 +3176,7 @@ static char* doLoadTupleData(SSerializeDataHandle* pHandle, const STuplePos* pPo
     if (pPage == NULL) {
       return NULL;
     }
-    char*      p = pPage->data + pPos->offset;
+    char* p = pPage->data + pPos->offset;
     releaseBufPage(pHandle->pBuf, pPage);
     return p;
   } else {
@@ -4635,7 +4637,7 @@ int32_t sampleFunction(SqlFunctionCtx* pCtx) {
       continue;
     }
 
-    char* data = colDataGetData(pInputCol, i);
+    char*   data = colDataGetData(pInputCol, i);
     int32_t code = doReservoirSample(pCtx, pInfo, data, i);
     if (code != TSDB_CODE_SUCCESS) {
       return code;
@@ -4655,7 +4657,7 @@ int32_t sampleFunction(SqlFunctionCtx* pCtx) {
 }
 
 int32_t sampleFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
-  int32_t code = TSDB_CODE_SUCCESS;
+  int32_t              code = TSDB_CODE_SUCCESS;
   SResultRowEntryInfo* pEntryInfo = GET_RES_INFO(pCtx);
 
   SSampleInfo* pInfo = getSampleOutputInfo(pCtx);
@@ -4989,7 +4991,7 @@ int32_t modeFunction(SqlFunctionCtx* pCtx) {
     }
     numOfElems++;
 
-    char* data = colDataGetData(pInputCol, i);
+    char*   data = colDataGetData(pInputCol, i);
     int32_t code = doModeAdd(pInfo, i, pCtx, data);
     if (code != TSDB_CODE_SUCCESS) {
       return code;
@@ -5410,6 +5412,7 @@ int32_t blockDistFunction(SqlFunctionCtx* pCtx) {
   if (pDistInfo->maxRows < p1.maxRows) {
     pDistInfo->maxRows = p1.maxRows;
   }
+  pDistInfo->numOfVgroups += (p1.numOfTables != 0 ? 1 : 0);
 
   for (int32_t i = 0; i < tListLen(pDistInfo->blockRowsHisto); ++i) {
     pDistInfo->blockRowsHisto[i] += p1.blockRowsHisto[i];
@@ -5438,6 +5441,7 @@ int32_t tSerializeBlockDistInfo(void* buf, int32_t bufLen, const STableBlockDist
   if (tEncodeI32(&encoder, pInfo->defMinRows) < 0) return -1;
   if (tEncodeU32(&encoder, pInfo->numOfInmemRows) < 0) return -1;
   if (tEncodeU32(&encoder, pInfo->numOfSmallBlocks) < 0) return -1;
+  if (tEncodeU32(&encoder, pInfo->numOfVgroups) < 0) return -1;
 
   for (int32_t i = 0; i < tListLen(pInfo->blockRowsHisto); ++i) {
     if (tEncodeI32(&encoder, pInfo->blockRowsHisto[i]) < 0) return -1;
@@ -5469,6 +5473,7 @@ int32_t tDeserializeBlockDistInfo(void* buf, int32_t bufLen, STableBlockDistInfo
   if (tDecodeI32(&decoder, &pInfo->defMinRows) < 0) return -1;
   if (tDecodeU32(&decoder, &pInfo->numOfInmemRows) < 0) return -1;
   if (tDecodeU32(&decoder, &pInfo->numOfSmallBlocks) < 0) return -1;
+  if (tDecodeU32(&decoder, &pInfo->numOfVgroups) < 0) return -1;
 
   for (int32_t i = 0; i < tListLen(pInfo->blockRowsHisto); ++i) {
     if (tDecodeI32(&decoder, &pInfo->blockRowsHisto[i]) < 0) return -1;
@@ -5520,7 +5525,7 @@ int32_t blockDistFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   colDataAppend(pColInfo, row++, st, false);
 
   len = sprintf(st + VARSTR_HEADER_SIZE, "Total_Tables=[%d] Total_Files=[%d] Total_Vgroups=[%d]", pData->numOfTables,
-                pData->numOfFiles, 0);
+                pData->numOfFiles, pData->numOfVgroups);
 
   varDataSetLen(st, len);
   colDataAppend(pColInfo, row++, st, false);