From ea34b5e7aa2eb78a77a619875e33dab773185ed9 Mon Sep 17 00:00:00 2001
From: unknown <anozdrin/alik@quad.>
Date: Fri, 15 Feb 2008 14:14:09 +0300
Subject: [PATCH] Add a test case for Bug#21704: Renaming column does not
 update FK definition.

mysql-test/r/innodb_mysql.result:
  Updated result file.
---
 mysql-test/include/mix1.inc      | 29 +++++++++++++++++++++++++++++
 mysql-test/r/innodb_mysql.result | 13 +++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/mysql-test/include/mix1.inc b/mysql-test/include/mix1.inc
index 703dfa44df0..c1fd5cac10c 100644
--- a/mysql-test/include/mix1.inc
+++ b/mysql-test/include/mix1.inc
@@ -1410,4 +1410,33 @@ SELECT * FROM t1 WHERE tid = 1 AND vid = 3 ORDER BY idx DESC;
 
 DROP TABLE t1;
 
+#
+# Bug#21704: Renaming column does not update FK definition.
+#
+
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+--enable_warnings
+
+CREATE TABLE t1(id INT PRIMARY KEY)
+  ENGINE=innodb;
+
+CREATE TABLE t2(
+  t1_id INT PRIMARY KEY,
+  CONSTRAINT fk1 FOREIGN KEY (t1_id) REFERENCES t1(id))
+  ENGINE=innodb;
+
+--echo
+
+--disable_result_log
+--error ER_ERROR_ON_RENAME
+ALTER TABLE t1 CHANGE id id2 INT;
+--enable_result_log
+
+--echo
+
+DROP TABLE t2;
+DROP TABLE t1;
+
 --echo End of 5.1 tests
diff --git a/mysql-test/r/innodb_mysql.result b/mysql-test/r/innodb_mysql.result
index e9f00a667c0..ffc3ca25a99 100644
--- a/mysql-test/r/innodb_mysql.result
+++ b/mysql-test/r/innodb_mysql.result
@@ -1634,4 +1634,17 @@ vid	tid	idx	name	type
 3	1	2	c1	NULL
 3	1	1	pk	NULL
 DROP TABLE t1;
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+CREATE TABLE t1(id INT PRIMARY KEY)
+ENGINE=innodb;
+CREATE TABLE t2(
+t1_id INT PRIMARY KEY,
+CONSTRAINT fk1 FOREIGN KEY (t1_id) REFERENCES t1(id))
+ENGINE=innodb;
+
+ALTER TABLE t1 CHANGE id id2 INT;
+
+DROP TABLE t2;
+DROP TABLE t1;
 End of 5.1 tests