From 2b3e7589b74fd5657012378a009479d15005ec40 Mon Sep 17 00:00:00 2001
From: starocean999 <40539150+starocean999@users.noreply.github.com>
Date: Tue, 23 Jan 2024 19:38:27 +0800
Subject: [PATCH] [fix](nereids)group by expr may be lost in
 EliminateGroupByConstant rule (#30274)

---
 .../doris/nereids/rules/analysis/EliminateGroupByConstant.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/EliminateGroupByConstant.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/EliminateGroupByConstant.java
index e7fa14e5cb..e683153e9a 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/EliminateGroupByConstant.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/EliminateGroupByConstant.java
@@ -67,7 +67,7 @@ public class EliminateGroupByConstant extends OneRewriteRuleFactory {
                     lit = expression;
                 }
             }
-            if (slotGroupByExprs.isEmpty() && lit != null && aggregate.getAggregateFunctions().isEmpty()) {
+            if (slotGroupByExprs.isEmpty() && lit != null) {
                 slotGroupByExprs.add(lit);
             }
             return aggregate.withGroupByAndOutput(ImmutableList.copyOf(slotGroupByExprs), outputExprs);