fix(query): set the correct buffer to accommodate the tag values.

source/common/src/tdatablock.c

@@ -1132,6 +1132,10 @@ void blockDataCleanup(SSDataBlock* pDataBlock) {
   pDataBlock->info.window.ekey = 0;
   pDataBlock->info.window.skey = 0;
 
+  if (pDataBlock->info.capacity == 0) {
+    return;
+  }
+
   size_t numOfCols = taosArrayGetSize(pDataBlock->pDataBlock);
   for (int32_t i = 0; i < numOfCols; ++i) {
     SColumnInfoData* p = taosArrayGet(pDataBlock->pDataBlock, i);

source/dnode/vnode/src/tsdb/tsdbRead.c

@@ -3837,7 +3837,7 @@ int32_t tsdbRetrieveDatablockSMA(STsdbReader* pReader, SColumnDataAgg*** pBlockS
   SFileDataBlockInfo* pFBlock = getCurrentBlockInfo(&pReader->status.blockIter);
 
   SDataBlk* pBlock = getCurrentBlock(&pReader->status.blockIter);
-  int64_t   stime = taosGetTimestampUs();
+//  int64_t   stime = taosGetTimestampUs();
 
   SBlockLoadSuppInfo* pSup = &pReader->suppInfo;
 
@@ -3887,14 +3887,10 @@ int32_t tsdbRetrieveDatablockSMA(STsdbReader* pReader, SColumnDataAgg*** pBlockS
     }
   }
 
-  double elapsed = (taosGetTimestampUs() - stime) / 1000.0;
-  pReader->cost.smaLoadTime += elapsed;
   pReader->cost.smaDataLoad += 1;
-
   *pBlockStatis = pSup->plist;
 
-  tsdbDebug("vgId:%d, succeed to load block SMA for uid %" PRIu64 ", elapsed time:%.2f ms, %s", 0, pFBlock->uid,
-            elapsed, pReader->idStr);
+  tsdbDebug("vgId:%d, succeed to load block SMA for uid %" PRIu64 ", %s", 0, pFBlock->uid, pReader->idStr);
 
   return code;
 }

source/libs/executor/src/executorimpl.c

@@ -574,6 +574,9 @@ int32_t projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBloc
   // if the source equals to the destination, it is to create a new column as the result of scalar
   // function or some operators.
   bool createNewColModel = (pResult == pSrcBlock);
+  if (createNewColModel) {
+    blockDataEnsureCapacity(pResult, pResult->info.rows);
+  }
 
   int32_t numOfRows = 0;
 
@@ -623,6 +626,7 @@ int32_t projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBloc
 
       int32_t startOffset = createNewColModel ? 0 : pResult->info.rows;
       ASSERT(pResult->info.capacity > 0);
+
       colDataMergeCol(pResColData, startOffset, (int32_t*)&pResult->info.capacity, &idata, dest.numOfRows);
       colDataDestroy(&idata);
 

source/libs/executor/src/scanoperator.c

@@ -424,8 +424,9 @@ static int32_t loadDataBlock(SOperatorInfo* pOperator, STableScanInfo* pTableSca
     qDebug("%s data block skipped, brange:%" PRId64 "-%" PRId64 ", rows:%d", GET_TASKID(pTaskInfo),
            pBlockInfo->window.skey, pBlockInfo->window.ekey, pBlockInfo->rows);
 
-    // NOTE:  here the tag value only load for one row
-    ensureBlockCapacity(pBlock, 1);
+    if (pTableScanInfo->pseudoSup.numOfExprs > 0) {
+      ensureBlockCapacity(pBlock, pBlock->info.rows);
+    }
     doSetTagColumnData(pTableScanInfo, pBlock, pTaskInfo, 1);
     pCost->skipBlocks += 1;
     return TSDB_CODE_SUCCESS;
@@ -436,7 +437,10 @@ static int32_t loadDataBlock(SOperatorInfo* pOperator, STableScanInfo* pTableSca
     if (success) {  // failed to load the block sma data, data block statistics does not exist, load data block instead
       qDebug("%s data block SMA loaded, brange:%" PRId64 "-%" PRId64 ", rows:%d", GET_TASKID(pTaskInfo),
              pBlockInfo->window.skey, pBlockInfo->window.ekey, pBlockInfo->rows);
-      ensureBlockCapacity(pBlock, 1);
+      if (pTableScanInfo->pseudoSup.numOfExprs > 0) {
+        ensureBlockCapacity(pBlock, pBlock->info.rows);
+      }
+
       doSetTagColumnData(pTableScanInfo, pBlock, pTaskInfo, 1);
       return TSDB_CODE_SUCCESS;
     } else {