From 66d4af24a6ff3b0f395cc7d20bda0d041a80a64a Mon Sep 17 00:00:00 2001
From: Alex Duan <417921451@qq.com>
Date: Sat, 20 Nov 2021 18:04:08 +0800
Subject: [PATCH] fixed TS-426. group by can not ignore NULL

---
 src/query/src/qExecutor.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index e4a9316416..03d19d760a 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -1713,9 +1713,6 @@ static void doHashGroupbyAgg(SOperatorInfo* pOperator, SGroupbyOperatorInfo *pIn
   int32_t num = 0;
   for (int32_t j = 0; j < pSDataBlock->info.rows; ++j) {
     char* val = ((char*)pColInfoData->pData) + bytes * j;
-    if (isNull(val, type)) {
-      continue;
-    }
 
     // Compare with the previous row of this column, and do not set the output buffer again if they are identical.
     if (pInfo->prevData == NULL) {
-- 
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