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Backport of:

Browse Source 
----------------------------------------------------------
revno: 2617.69.24
committer: Konstantin Osipov <kostja@sun.com>
branch nick: 5.4-42546
timestamp: Fri 2009-08-14 19:22:05 +0400
message:
  A pre-requisite for a fix for Bug#42546 "Backup: RESTORE fails, thinking it
  finds an existing table"
  Back-port from WL 148 "Foreign keys" feature tree a patch
  that introduced Prelocking_strategy class -- a way to parameterize
  open_tables() behaviour, implemented by Dmitry Lenev.

(Part of WL#4284).
This commit is contained in:
Konstantin Osipov
2009-12-08 17:13:12 +03:00
parent b9895d46c1
commit c20afa6d49
12 changed files with 790 additions and 418 deletions
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11
sql/sql_parse.cc
View File

@ -3342,9 +3342,14 @@ end_with_restore_list:
thd->options|= OPTION_TABLE_LOCK;
thd->in_lock_tables=1;
res= (open_and_lock_tables_derived(thd, all_tables, FALSE,
MYSQL_OPEN_TAKE_UPGRADABLE_MDL) ||
thd->locked_tables_list.init_locked_tables(thd));
{
Lock_tables_prelocking_strategy lock_tables_prelocking_strategy;
res= (open_and_lock_tables_derived(thd, all_tables, FALSE,
MYSQL_OPEN_TAKE_UPGRADABLE_MDL,
&lock_tables_prelocking_strategy) ||
thd->locked_tables_list.init_locked_tables(thd));
}
thd->in_lock_tables= 0;