database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-08-31 22:22:30 +03:00
Code Activity

Fix for bug #28652: MySQL (with-debug=full) asserts when alter table operations

Browse Source 
Problem: we may create a deadlock committing changes in the mysql_alter_table() when 
LOCK_open is set. Moreover, "in some variants of the ALTER TABLE commit
happens earlier, outside of LOCK_open, in other later - inside. It's no good, a storage 
engine code that is called in between could expect a consistency - either there is a 
transaction or there is not".
Fix: move the commit to happen earlier and outside of the LOCK_open.
This commit is contained in:
ramil/ram@mysql.com/ramil.myoffice.izhnet.ru
2007-06-01 22:53:50 +05:00
parent 0dc78d3913
commit 2b2a80733d
3 changed files with 25 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
mysql-test/t/innodb_mysql.test
View File

@@ -597,4 +597,12 @@ EXPLAIN SELECT COUNT(*) FROM t2 WHERE stat_id IN (1,3) AND acct_id=785;
DROP TABLE t1,t2;
#
# Bug #28652: assert when alter innodb table operation
#
create table t1(a int) engine=innodb;
alter table t1 comment '123';
show create table t1;
drop table t1;
--echo End of 5.0 tests