[td-3318]<fix>: fix crash caused by empty stddev query.

d422bba8 · Haojun Liao · 6396e651 · d422bba8
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
@@ -4170,8 +4170,10 @@ static SSDataBlock* doTableScan(void* param) {
      assert(ret);
    }

-    pResultRowInfo->curIndex = 0;
-    pResultRowInfo->prevSKey = pResultRowInfo->pResult[0]->win.skey;
+    if (pResultRowInfo->size > 0) {
+      pResultRowInfo->curIndex = 0;
+      pResultRowInfo->prevSKey = pResultRowInfo->pResult[0]->win.skey;
+    }

    qDebug("QInfo:%p start to repeat scan data blocks due to query func required, qrange:%" PRId64 "-%" PRId64,
           pRuntimeEnv->qinfo, cond.twindow.skey, cond.twindow.ekey);