From d83f875467b74c52a860d612b14595557e9e7576 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Mon, 11 Jul 2022 11:55:02 +0800
Subject: [PATCH] fix(query): ensure capacity of ssdatablock.

---
 source/libs/executor/src/groupoperator.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/source/libs/executor/src/groupoperator.c b/source/libs/executor/src/groupoperator.c
index 311d7f0d5a..ee20bc7ba6 100644
--- a/source/libs/executor/src/groupoperator.c
+++ b/source/libs/executor/src/groupoperator.c
@@ -637,6 +637,7 @@ static SSDataBlock* buildPartitionResult(SOperatorInfo* pOperator) {
   int32_t* pageId = taosArrayGet(pGroupInfo->pPageList, pInfo->pageIndex);
   void* page = getBufPage(pInfo->pBuf, *pageId);
 
+  blockDataEnsureCapacity(pInfo->binfo.pRes, pInfo->rowCapacity);
   blockDataFromBuf1(pInfo->binfo.pRes, page, pInfo->rowCapacity);
 
   pInfo->pageIndex += 1;