add more check

b04919c5 · wpan · cb90fe2b · b04919c5
隐藏空白更改
内联并排

Showing with 4 addition and 2 deletion

src/query/src/qExecutor.c src/query/src/qExecutor.c +4 -2

未找到文件。
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -5517,8 +5517,10 @@ static SSDataBlock* doSort(void* param, bool* newgroup) {
  }

  __compar_fn_t  comp = getKeyComparFunc(pSchema[pInfo->colIndex].type, pInfo->order);
-  taoscQSort(pCols, pSchema, numOfCols, pInfo->pDataBlock->info.rows, pInfo->colIndex, comp);
-
+  if (pInfo->pDataBlock->info.rows) {
+    taoscQSort(pCols, pSchema, numOfCols, pInfo->pDataBlock->info.rows, pInfo->colIndex, comp);
+  }
+  
  tfree(pCols);
  tfree(pSchema);
  return (pInfo->pDataBlock->info.rows > 0)? pInfo->pDataBlock:NULL;