drop table if exists t1,t2;
create table t1 ( n int auto_increment primary key);
lock tables t1 write;
insert into t1 values(NULL);
unlock tables;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
lock tables t1 write, t1 as t0 read;
insert into t1 values(NULL);
unlock tables;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
lock tables t1 write, t1 as t0 read, t1 as t2 read;
insert into t1 values(NULL);
unlock tables;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
lock tables t1 write, t1 as t0 write, t1 as t2 read;
insert into t1 values(NULL);
unlock tables;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
lock tables t1 write, t1 as t0 write, t1 as t2 read, t1 as t3 read;
insert into t1 values(NULL);
unlock tables;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
lock tables t1 write, t1 as t0 write, t1 as t2 write;
insert into t1 values(NULL);
unlock tables;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
drop table t1;
CREATE TABLE t1 (a int);
CREATE TABLE t2 (a int);
lock tables t1 write,t1 as b write, t2 write, t2 as c read;
drop table t1,t2;
CREATE TABLE t1 (a int);
CREATE TABLE t2 (a int);
lock tables t1 write,t1 as b write, t2 write, t2 as c read;
drop table t2,t1;
unlock tables;
create temporary table t1(f1 int);
lock tables t1 write;
insert into t1 values (1);
show columns from t1;
Field	Type	Null	Key	Default	Extra
f1	int(11)	YES		NULL	
insert into t1 values(2);
drop table t1;
unlock tables;
