From f1fb7f5c147d112e20f84a07ca4f40d99e25cd7e Mon Sep 17 00:00:00 2001
From: slzhou <shenglian_zhou@163.com>
Date: Thu, 18 Jan 2024 08:43:36 +0800
Subject: [PATCH] fix: change num of output groups when cout empty group is
 needed

---
 source/libs/executor/src/executil.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/libs/executor/src/executil.c b/source/libs/executor/src/executil.c
index fd34a98eca..033cda43f2 100644
--- a/source/libs/executor/src/executil.c
+++ b/source/libs/executor/src/executil.c
@@ -2138,6 +2138,8 @@ int32_t buildGroupIdMapForAllTables(STableListInfo* pTableListInfo, SReadHandle*
       pTableListInfo->numOfOuputGroups = numOfTables;
     } else if (groupByTbname && pScanNode->groupOrderScan){
       pTableListInfo->numOfOuputGroups = numOfTables;
+    } else if (groupByTbname && tsCountAlwaysReturnValue && ((STableScanPhysiNode*)pScanNode)->needCountEmptyTable) {
+      pTableListInfo->numOfOuputGroups = numOfTables;
     } else {
       pTableListInfo->numOfOuputGroups = 1;
     }