From d163a16f3a1e02128250b1b2327bf7014a952030 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Tue, 11 Apr 2023 15:46:32 +0800
Subject: [PATCH] fix: fix max/min(tag) random result

---
 source/libs/executor/src/scanoperator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index 29990f2d06..ea834e90ca 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -484,7 +484,7 @@ int32_t addTagPseudoColumnData(SReadHandle* pHandle, const SExprInfo* pExpr, int
   int32_t code = 0;
 
   // backup the rows
-  int32_t backupRows = pBlock->info.rows;
+  int32_t backupRows = (rows == 1) ? rows : pBlock->info.rows;
   pBlock->info.rows = rows;
 
   bool            freeReader = false;
-- 
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