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Merge acurtis@bk-internal.mysql.com:/home/bk/mysql-4.1

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into xiphis.org:/usr/home/antony/work2/p3-bug7241.5
This commit is contained in:
unknown 2005-05-24 13:40:25 +01:00
commit 3a23b67566
3 changed files with 37 additions and 0 deletions
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10
mysql-test/r/lock.result
View File

@ -47,3 +47,13 @@ unlock tables;
lock tables t1 write, t1 as t1_alias read;
insert into t1 select index1,nr from t1 as t1_alias;
drop table t1,t2;
create table t1 ( a int(11) not null auto_increment, primary key(a));
create table t2 ( a int(11) not null auto_increment, primary key(a));
lock tables t1 write, t2 read;
delete from t1 using t1,t2 where t1.a=t2.a;
delete t1 from t1,t2 where t1.a=t2.a;
delete from t2 using t1,t2 where t1.a=t2.a;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
delete t2 from t1,t2 where t1.a=t2.a;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
drop table t1,t2;

14
mysql-test/t/lock.test
View File

@ -59,3 +59,17 @@ unlock tables;
lock tables t1 write, t1 as t1_alias read;
insert into t1 select index1,nr from t1 as t1_alias;
drop table t1,t2;
#
# Bug7241 - Invalid response when DELETE .. USING and LOCK TABLES used.
#
create table t1 ( a int(11) not null auto_increment, primary key(a));
create table t2 ( a int(11) not null auto_increment, primary key(a));
lock tables t1 write, t2 read;
delete from t1 using t1,t2 where t1.a=t2.a;
delete t1 from t1,t2 where t1.a=t2.a;
--error 1099
delete from t2 using t1,t2 where t1.a=t2.a;
--error 1099
delete t2 from t1,t2 where t1.a=t2.a;
drop table t1,t2;

13
sql/sql_parse.cc
View File

@ -1992,6 +1992,10 @@ mysql_execute_command(THD *thd)
#endif
}
#endif /* !HAVE_REPLICATION */
/* When subselects or time_zone info is used in a query
* we create a new TABLE_LIST containing all referenced tables
* and set local variable 'tables' to point to this list. */
if ((&lex->select_lex != lex->all_selects_list ||
lex->time_zone_tables_used) &&
lex->unit.create_total_list(thd, lex, &tables))
@ -4141,6 +4145,7 @@ void mysql_init_multi_delete(LEX *lex)
lex->select_lex.select_limit= lex->unit.select_limit_cnt=
HA_POS_ERROR;
lex->select_lex.table_list.save_and_clear(&lex->auxilliary_table_list);
lex->lock_option= using_update_log ? TL_READ_NO_INSERT : TL_READ;
}
@ -5437,6 +5442,14 @@ int multi_delete_precheck(THD *thd, TABLE_LIST *tables, uint *table_count)
}
walk->lock_type= target_tbl->lock_type;
target_tbl->table_list= walk; // Remember corresponding table
/* in case of subselects, we need to set lock_type in
* corresponding table in list of all tables */
if (walk->table_list)
{
target_tbl->table_list= walk->table_list;
walk->table_list->lock_type= walk->lock_type;
}
}
DBUG_RETURN(0);
}