212 lines
4.4 KiB
Plaintext
212 lines
4.4 KiB
Plaintext
drop table if exists t1,t2;
|
|
create table t1(n int);
|
|
insert into t1 values (1);
|
|
lock tables t1 write;
|
|
update low_priority t1 set n = 4;
|
|
select n from t1;
|
|
unlock tables;
|
|
n
|
|
4
|
|
drop table t1;
|
|
create table t1(n int);
|
|
insert into t1 values (1);
|
|
lock tables t1 read;
|
|
update low_priority t1 set n = 4;
|
|
select n from t1;
|
|
n
|
|
1
|
|
unlock tables;
|
|
drop table t1;
|
|
create table t1 (a int, b int);
|
|
create table t2 (c int, d int);
|
|
insert into t1 values(1,1);
|
|
insert into t1 values(2,2);
|
|
insert into t2 values(1,2);
|
|
lock table t1 read;
|
|
update t1,t2 set c=a where b=d;
|
|
select c from t2;
|
|
c
|
|
2
|
|
drop table t1;
|
|
drop table t2;
|
|
create table t1 (a int);
|
|
create table t2 (a int);
|
|
lock table t1 write, t2 write;
|
|
insert t1 select * from t2;
|
|
drop table t2;
|
|
ERROR 42S02: Table 'test.t2' doesn't exist
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
create table t2 (a int);
|
|
lock table t1 write, t2 write, t1 as t1_2 write, t2 as t2_2 write;
|
|
insert t1 select * from t2;
|
|
drop table t2;
|
|
ERROR 42S02: Table 'test.t2' doesn't exist
|
|
drop table t1;
|
|
End of 4.1 tests
|
|
create table t1(a int);
|
|
lock tables t1 write;
|
|
show columns from t1;
|
|
Field Type Null Key Default Extra
|
|
a int(11) YES NULL
|
|
unlock tables;
|
|
drop table t1;
|
|
USE mysql;
|
|
LOCK TABLES columns_priv WRITE, db WRITE, host WRITE, user WRITE;
|
|
FLUSH TABLES;
|
|
USE mysql;
|
|
SELECT user.Select_priv FROM user, db WHERE user.user = db.user LIMIT 1;
|
|
OPTIMIZE TABLES columns_priv, db, host, user;
|
|
Table Op Msg_type Msg_text
|
|
mysql.columns_priv optimize status OK
|
|
mysql.db optimize status OK
|
|
mysql.host optimize status OK
|
|
mysql.user optimize status OK
|
|
UNLOCK TABLES;
|
|
Select_priv
|
|
N
|
|
USE test;
|
|
use test;
|
|
CREATE TABLE t1 (c1 int);
|
|
LOCK TABLE t1 WRITE;
|
|
FLUSH TABLES WITH READ LOCK;
|
|
CREATE TABLE t2 (c1 int);
|
|
UNLOCK TABLES;
|
|
UNLOCK TABLES;
|
|
DROP TABLE t1, t2;
|
|
CREATE TABLE t1 (c1 int);
|
|
LOCK TABLE t1 WRITE;
|
|
FLUSH TABLES WITH READ LOCK;
|
|
CREATE TABLE t2 AS SELECT * FROM t1;
|
|
ERROR HY000: Table 't2' was not locked with LOCK TABLES
|
|
UNLOCK TABLES;
|
|
UNLOCK TABLES;
|
|
DROP TABLE t1;
|
|
CREATE DATABASE mysqltest_1;
|
|
FLUSH TABLES WITH READ LOCK;
|
|
DROP DATABASE mysqltest_1;
|
|
DROP DATABASE mysqltest_1;
|
|
ERROR HY000: Can't execute the query because you have a conflicting read lock
|
|
UNLOCK TABLES;
|
|
DROP DATABASE mysqltest_1;
|
|
ERROR HY000: Can't drop database 'mysqltest_1'; database doesn't exist
|
|
create table t1 (f1 int(12) unsigned not null auto_increment, primary key(f1)) engine=innodb;
|
|
lock tables t1 write;
|
|
alter table t1 auto_increment=0;
|
|
alter table t1 auto_increment=0;
|
|
unlock tables;
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
create table t2 like t1;
|
|
# con1
|
|
lock tables t1 write;
|
|
# con2
|
|
flush tables with read lock;
|
|
# con5
|
|
# global read lock is taken
|
|
# con3
|
|
select * from t2 for update;
|
|
# waiting for release of read lock
|
|
# con4
|
|
# would hang and later cause a deadlock
|
|
flush tables t2;
|
|
# clean up
|
|
unlock tables;
|
|
unlock tables;
|
|
a
|
|
drop table t1,t2;
|
|
#
|
|
# Lightweight version:
|
|
# Ensure that the wait for a GRL is done before opening tables.
|
|
#
|
|
create table t1 (a int);
|
|
create table t2 like t1;
|
|
#
|
|
# UPDATE
|
|
#
|
|
# default
|
|
flush tables with read lock;
|
|
# con1
|
|
update t2 set a = 1;
|
|
# default
|
|
# statement is waiting for release of read lock
|
|
# con2
|
|
flush table t2;
|
|
# default
|
|
unlock tables;
|
|
# con1
|
|
#
|
|
# LOCK TABLES .. WRITE
|
|
#
|
|
# default
|
|
flush tables with read lock;
|
|
# con1
|
|
lock tables t2 write;
|
|
# default
|
|
# statement is waiting for release of read lock
|
|
# con2
|
|
flush table t2;
|
|
# default
|
|
unlock tables;
|
|
# con1
|
|
unlock tables;
|
|
drop table t1,t2;
|
|
End of 5.0 tests
|
|
create table t1 (i int);
|
|
lock table t1 read;
|
|
update t1 set i= 10;
|
|
select * from t1;
|
|
kill query ID;
|
|
i
|
|
ERROR 70100: Query execution was interrupted
|
|
unlock tables;
|
|
drop table t1;
|
|
drop table if exists t1;
|
|
create table t1 (a int) ENGINE=MEMORY;
|
|
--> client 2
|
|
handler t1 open;
|
|
ERROR HY000: Table storage engine for 't1' doesn't have this option
|
|
--> client 1
|
|
drop table t1;
|
|
drop table if exists t1;
|
|
create table t1 (i int);
|
|
connection: default
|
|
lock tables t1 write;
|
|
connection: flush
|
|
flush tables with read lock;;
|
|
connection: default
|
|
alter table t1 add column j int;
|
|
connection: insert
|
|
insert into t1 values (1,2);;
|
|
connection: default
|
|
unlock tables;
|
|
connection: flush
|
|
select * from t1;
|
|
i j
|
|
unlock tables;
|
|
select * from t1;
|
|
i j
|
|
1 2
|
|
drop table t1;
|
|
drop table if exists t1;
|
|
create table t1 (i int);
|
|
connection: default
|
|
lock tables t1 write;
|
|
connection: flush
|
|
flush tables with read lock;;
|
|
connection: default
|
|
flush tables;
|
|
unlock tables;
|
|
drop table t1;
|
|
drop table if exists t1,t2;
|
|
create table t1 (a int);
|
|
flush status;
|
|
lock tables t1 read;
|
|
insert into t1 values(1);;
|
|
unlock tables;
|
|
drop table t1;
|
|
select @tlwa < @tlwb;
|
|
@tlwa < @tlwb
|
|
1
|
|
End of 5.1 tests
|