From 6a528590d9e9e513cf94bb82b3d05f6281c73d77 Mon Sep 17 00:00:00 2001
From: "timour@mysql.com" <>
Date: Mon, 12 Sep 2005 08:28:53 +0300
Subject: [PATCH] Fix for BUG#13067 "JOIN ... USING is case sensitive".

---
 mysql-test/r/select.result | 10 ++++++++++
 mysql-test/t/select.test   | 12 ++++++++++++
 sql/sql_base.cc            |  2 +-
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result
index 24c89039566..5f2f5f50a16 100644
--- a/mysql-test/r/select.result
+++ b/mysql-test/r/select.result
@@ -2912,3 +2912,13 @@ ERROR 23000: Column 'id' in from clause is ambiguous
 SELECT id,t3.id FROM (t1 JOIN t2 ON (t2.id=t1.id)) LEFT JOIN t3 USING (id);
 ERROR 23000: Column 'id' in from clause is ambiguous
 drop table t1, t2, t3;
+create table t1 (a int(10),b int(10));
+create table t2 (a int(10),b int(10));
+insert into t1 values (1,10),(2,20),(3,30);
+insert into t2 values (1,10);
+select * from t1 inner join t2 using (A);
+a	b	b
+1	10	10
+select * from t1 inner join t2 using (a);
+a	b	b
+1	10	10
diff --git a/mysql-test/t/select.test b/mysql-test/t/select.test
index 62687a869b7..c4b50a7556b 100644
--- a/mysql-test/t/select.test
+++ b/mysql-test/t/select.test
@@ -2487,3 +2487,15 @@ SELECT id,t3.id FROM t1 JOIN t2 ON (t2.id=t1.id) LEFT JOIN t3 USING (id);
 SELECT id,t3.id FROM (t1 JOIN t2 ON (t2.id=t1.id)) LEFT JOIN t3 USING (id);
 
 drop table t1, t2, t3;
+
+#
+# Bug #13067 JOIN xxx USING is case sensitive
+#
+
+create table t1 (a int(10),b int(10));
+create table t2 (a int(10),b int(10));
+insert into t1 values (1,10),(2,20),(3,30);
+insert into t2 values (1,10);
+# both queries should produce the same result
+select * from t1 inner join t2 using (A);
+select * from t1 inner join t2 using (a);
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 8a5c5643ce2..766840e667c 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -3414,7 +3414,7 @@ test_if_string_in_list(const char *find, List<String> *str_list)
   {
     if (find_length != curr_str->length())
       continue;
-    if (!strncmp(find, curr_str->ptr(), find_length))
+    if (!my_strcasecmp(system_charset_info, find, curr_str->ptr()))
       return TRUE;
   }
   return FALSE;