bk commit into 5.0 tree (andrey:1.1983) BUG#12533

[ahristov]

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5.0 repository of andrey. When andrey does a push these changes will
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ChangeSet
  1.1983 05/08/12 15:49:48 andrey@whirlpool. +3 -0
  add test case for bug #12533 (crash on DESCRIBE <view> after renaming base column)

  sql/sql_show.cc
    1.264 05/08/12 15:49:42 andrey@whirlpool. +3 -0
    even in case of error close the thd tables.

  mysql-test/t/view.test
    1.97 05/08/12 15:49:42 andrey@whirlpool. +15 -0
    add test case for bug #12533

  mysql-test/r/view.result
    1.103 05/08/12 15:48:15 andrey@whirlpool. +10 -0
    results for test of bug 12533

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	andrey
# Host:	whirlpool.
# Root:	/work/mysql-5.0-setopt

--- 1.263/sql/sql_show.cc	2005-08-09 09:37:44 +02:00
+++ 1.264/sql/sql_show.cc	2005-08-12 15:49:42 +02:00
@@ -1982,7 +1982,10 @@
     if (schema_table->process_table(thd, show_table_list,
                                     table, res, show_table_list->db,
                                     show_table_list->alias))
+    {
+      close_thread_tables(thd);
       goto err;
+    }
     close_thread_tables(thd);
     show_table_list->table= 0;
     error= 0;

--- 1.102/mysql-test/r/view.result	2005-08-12 10:19:21 +02:00
+++ 1.103/mysql-test/r/view.result	2005-08-12 15:48:15 +02:00
@@ -2092,3 +2092,13 @@
 a
 DROP VIEW v1;
 DROP TABLE t1,t2,t3,t4,t5;
+DROP TABLE IF EXISTS t1;
+DROP VIEW  IF EXISTS v1;
+CREATE TABLE t1 (f4 CHAR(5));
+CREATE VIEW v1 AS SELECT * FROM t1;
+DESCRIBE v1;
+Field	Type	Null	Key	Default	Extra
+f4	char(5)	YES		NULL	
+ALTER TABLE t1 CHANGE COLUMN f4 f4x CHAR(5);
+DESCRIBE v1;
+ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s)

--- 1.96/mysql-test/t/view.test	2005-08-12 10:18:48 +02:00
+++ 1.97/mysql-test/t/view.test	2005-08-12 15:49:42 +02:00
@@ -1937,3 +1937,18 @@
 DROP TABLE t1,t2,t3,t4,t5;
 
 
+#
+# BUG #12533 (crash on DESCRIBE <view> after renaming base table column)
+#
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP VIEW  IF EXISTS v1;
+--enable_warnings
+
+CREATE TABLE t1 (f4 CHAR(5));
+CREATE VIEW v1 AS SELECT * FROM t1;
+DESCRIBE v1;
+
+ALTER TABLE t1 CHANGE COLUMN f4 f4x CHAR(5);
+--error 1356
+DESCRIBE v1;