1
0
mirror of https://github.com/MariaDB/server.git synced 2025-08-29 00:08:14 +03:00

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

into mysql.com:/home/my/mysql-4.1
This commit is contained in:
monty@mysql.com
2004-10-20 18:58:01 +03:00
21 changed files with 284 additions and 47 deletions

View File

@@ -1,4 +1,8 @@
select @@innodb_table_locks;
@@innodb_table_locks
1
drop table if exists t1;
set @@innodb_table_locks=1;
create table t1 (id integer, x integer) engine=INNODB;
insert into t1 values(0, 0);
set autocommit=0;
@@ -20,3 +24,33 @@ id x
0 2
commit;
drop table t1;
set @@innodb_table_locks=0;
create table t1 (id integer primary key, x integer) engine=INNODB;
insert into t1 values(0, 0),(1,1),(2,2);
commit;
SELECT * from t1 where id = 0 FOR UPDATE;
id x
0 0
set autocommit=0;
set @@innodb_table_locks=0;
lock table t1 write;
update t1 set x=10 where id = 2;
SELECT * from t1 where id = 2;
id x
2 2
UPDATE t1 set x=3 where id = 2;
commit;
SELECT * from t1;
id x
0 0
1 1
2 3
commit;
unlock tables;
commit;
select * from t1;
id x
0 0
1 1
2 10
drop table t1;

View File

@@ -0,0 +1,13 @@
stop slave;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
reset master;
reset slave;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
start slave;
create table t1 (a int) engine=innodb;
begin;
insert into t1 values(1);
flush tables with read lock;
commit;
unlock tables;
drop table t1;

View File

@@ -0,0 +1 @@
--innodb-table-lock=1

View File

@@ -1,5 +1,15 @@
-- source include/have_innodb.inc
#
# Check and select innodb lock type
#
select @@innodb_table_locks;
#
# Testing of explicit table locks with enforced table locks
#
connect (con1,localhost,root,,);
connect (con2,localhost,root,,);
@@ -8,9 +18,11 @@ drop table if exists t1;
--enable_warnings
#
# Testing of explicit table locks
# Testing of explicit table locks with enforced table locks
#
set @@innodb_table_locks=1;
connection con1;
create table t1 (id integer, x integer) engine=INNODB;
insert into t1 values(0, 0);
@@ -41,3 +53,46 @@ select * from t1;
commit;
drop table t1;
#
# Try with old lock method (where LOCK TABLE is ignored by InnoDB)
#
set @@innodb_table_locks=0;
create table t1 (id integer primary key, x integer) engine=INNODB;
insert into t1 values(0, 0),(1,1),(2,2);
commit;
SELECT * from t1 where id = 0 FOR UPDATE;
connection con2;
set autocommit=0;
set @@innodb_table_locks=0;
# The following statement should work becase innodb doesn't check table locks
lock table t1 write;
connection con1;
# This will be locked by MySQL
--send
update t1 set x=10 where id = 2;
--sleep 2
connection con2;
# Note that we will get a deadlock if we try to select any rows marked
# for update by con1 !
SELECT * from t1 where id = 2;
UPDATE t1 set x=3 where id = 2;
commit;
SELECT * from t1;
commit;
unlock tables;
connection con1;
reap;
commit;
select * from t1;
drop table t1;

View File

@@ -0,0 +1,17 @@
source include/master-slave.inc;
source include/have_innodb.inc;
create table t1 (a int) engine=innodb;
begin;
insert into t1 values(1);
flush tables with read lock;
commit;
save_master_pos;
connection slave;
sync_with_master;
# cleanup
connection master;
unlock tables;
drop table t1;
save_master_pos;
connection slave;
sync_with_master;