fix: ensure capacity before column merge: select agg1(col/10), agg2(col/2)

source/libs/executor/src/executorimpl.c

@@ -898,6 +898,7 @@ int32_t projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBloc
       scalarCalculate(pExpr[k].pExpr->_optrRoot.pRootNode, pBlockList, &dest);
 
       int32_t startOffset = createNewColModel ? 0 : pResult->info.rows;
+      colInfoDataEnsureCapacity(pResColData, startOffset, pResult->info.capacity);
       colDataMergeCol(pResColData, startOffset, &pResult->info.capacity, &idata, dest.numOfRows);
 
       numOfRows = dest.numOfRows;
@@ -937,6 +938,7 @@ int32_t projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBloc
         }
 
         int32_t startOffset = createNewColModel ? 0 : pResult->info.rows;
+        colInfoDataEnsureCapacity(pResColData, startOffset, pResult->info.capacity);
         colDataMergeCol(pResColData, startOffset, &pResult->info.capacity, &idata, dest.numOfRows);
 
         numOfRows = dest.numOfRows;