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Backport of:

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------------------------------------------------------------
revno: 2630.4.16
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Thu 2008-05-29 09:45:02 +0400
message:
  WL#3726 "DDL locking for all metadata objects".

  After review changes in progress.

  Tweaked some comments and did some renames to
  avoid ambiguites.
This commit is contained in:
Konstantin Osipov
2009-12-01 01:13:06 +03:00
parent 3d19fdad34
commit f56cc2a335
10 changed files with 93 additions and 94 deletions
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11
sql/sql_trigger.cc
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@ -446,8 +446,17 @@ bool mysql_create_or_drop_trigger(THD *thd, TABLE_LIST *tables, bool create)
if (thd->locked_tables)
{
if (name_lock_locked_table(thd, tables))
/* Under LOCK TABLES we must only accept write locked tables. */
if (!(tables->table= find_write_locked_table(thd->open_tables, tables->db,
tables->table_name)))
goto end;
/*
Ensure that table is opened only by this thread and that no other
statement will open this table.
*/
if (wait_while_table_is_used(thd, tables->table, HA_EXTRA_FORCE_REOPEN))
goto end;
pthread_mutex_lock(&LOCK_open);
}
else