From 6d9e75a5b94c7e9314bfcea9d2ac312024b2792a Mon Sep 17 00:00:00 2001
From: ZhangCheng <chengzhang@apache.org>
Date: Mon, 21 Oct 2024 19:19:47 +0800
Subject: [PATCH] Remove unnecessary toLowercase when using CaseInsensitiveMap
 (#33336)

---
 .../token/common/pojo/generic/SubstitutableColumnNameToken.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/sql/token/common/pojo/generic/SubstitutableColumnNameToken.java b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/sql/token/common/pojo/generic/SubstitutableColumnNameToken.java
index e4cec11c35447..659dc64f152c5 100644
--- a/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/sql/token/common/pojo/generic/SubstitutableColumnNameToken.java
+++ b/infra/rewrite/src/main/java/org/apache/shardingsphere/infra/rewrite/sql/token/common/pojo/generic/SubstitutableColumnNameToken.java
@@ -80,7 +80,7 @@ private Map<String, String> getLogicAndActualTables(final RouteUnit routeUnit) {
         }
         Map<String, String> result = new CaseInsensitiveMap<>();
         for (RouteMapper each : routeUnit.getTableMappers()) {
-            result.put(each.getLogicName().toLowerCase(), each.getActualName());
+            result.put(each.getLogicName(), each.getActualName());
         }
         return result;
     }