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Small improvement to alloc_root

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Add support for LIMIT # OFFSET #
Changed lock handling:  Now all locks should be stored in TABLE_LIST instead of passed to functions.
Don't call query_cache_invalidate() twice in some cases
mysql_change_user() now clears states to be equal to close + connect.
Fixed a bug with multi-table-update and multi-table-delete when used with LOCK TABLES
Fixed a bug with replicate-do and UPDATE
This commit is contained in:
monty@mashka.mysql.fi
2002-11-16 20:19:10 +02:00
parent aa67a79632
commit 1a96948e81
29 changed files with 525 additions and 264 deletions
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27
mysql-test/r/multi_update.result
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@@ -150,4 +150,29 @@ n n
delete t1,t2 from t2 left outer join t1 using (n);
select * from t2 left outer join t1 using (n);
n n
drop table if exists t1,t2 ;
drop table t1,t2 ;
create table t1 (n int(10) not null primary key, d int(10));
create table t2 (n int(10) not null primary key, d int(10));
insert into t1 values(1,1);
insert into t2 values(1,10),(2,20);
LOCK TABLES t1 write, t2 read;
DELETE t1.*, t2.* FROM t1,t2 where t1.n=t2.n;
Table 't2' was locked with a READ lock and can't be updated
UPDATE t1,t2 SET t1.d=t2.d,t2.d=30 WHERE t1.n=t2.n;
Table 't2' was locked with a READ lock and can't be updated
UPDATE t1,t2 SET t1.d=t2.d WHERE t1.n=t2.n;
Table 't2' was locked with a READ lock and can't be updated
unlock tables;
LOCK TABLES t1 write, t2 write;
UPDATE t1,t2 SET t1.d=t2.d WHERE t1.n=t2.n;
select * from t1;
n d
1 10
DELETE t1.*, t2.* FROM t1,t2 where t1.n=t2.n;
select * from t1;
n d
select * from t2;
n d
2 20
unlock tables;
drop table t1,t2;