From a18742d212979b1d1dee509bd7260359dfcd976e Mon Sep 17 00:00:00 2001
From: minghong <englefly@gmail.com>
Date: Tue, 30 Jul 2024 18:14:43 +0800
Subject: [PATCH] fix

---
 .../apache/doris/nereids/rules/rewrite/PullUpJoinFromUnion.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/PullUpJoinFromUnion.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/PullUpJoinFromUnion.java
index 1f68d53f079c08..2f5e7fef1bdb04 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/PullUpJoinFromUnion.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/PullUpJoinFromUnion.java
@@ -90,7 +90,7 @@ public Rule build() {
                             break;
                         }
                     }
-                    if (commonChild == null || commonChild.isEmpty()) {
+                    if (commonChild == null) {
                         return null;
                     }