From 3ba0c575b90385d616ab5fb1d911a1e85c10ddd2 Mon Sep 17 00:00:00 2001
From: Alex Duan <417921451@qq.com>
Date: Tue, 28 Jun 2022 17:46:37 +0800
Subject: [PATCH] fix(query): percentile second scan not call cause crash

---
 src/query/src/qAggMain.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/query/src/qAggMain.c b/src/query/src/qAggMain.c
index 33d8525263..5d3af0440b 100644
--- a/src/query/src/qAggMain.c
+++ b/src/query/src/qAggMain.c
@@ -2560,7 +2560,8 @@ static void percentile_finalizer(SQLFunctionCtx *pCtx) {
 
   tMemBucket * pMemBucket = ppInfo->pMemBucket;
   if (pMemBucket == NULL || pMemBucket->total == 0) {  // check for null
-    assert(ppInfo->numOfElems == 0);
+    if (ppInfo->stage > 0)
+      assert(ppInfo->numOfElems == 0);
     setNull(pCtx->pOutput, pCtx->outputType, pCtx->outputBytes);
   } else {
     SET_DOUBLE_VAL((double *)pCtx->pOutput, getPercentile(pMemBucket, v));
-- 
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