handler_myisam.result 38.5 KB
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SET SESSION STORAGE_ENGINE = MyISAM;
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drop table if exists t1,t3,t4,t5;
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create table t1 (a int, b char(10), key a(a), key b(a,b));
insert into t1 values
(17,"ddd"),(18,"eee"),(19,"fff"),(19,"yyy"),
(14,"aaa"),(15,"bbb"),(16,"ccc"),(16,"xxx"),
(20,"ggg"),(21,"hhh"),(22,"iii");
handler t1 open as t2;
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handler t2 read a=(SELECT 1);
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT 1)' at line 1
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handler t2 read a first;
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a	b
14	aaa
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handler t2 read a next;
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a	b
15	bbb
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handler t2 read a next;
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a	b
16	ccc
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handler t2 read a prev;
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a	b
15	bbb
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handler t2 read a last;
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a	b
22	iii
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handler t2 read a prev;
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a	b
21	hhh
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handler t2 read a prev;
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a	b
20	ggg
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handler t2 read a first;
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a	b
14	aaa
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handler t2 read a prev;
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a	b
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handler t2 read a last;
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a	b
22	iii
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handler t2 read a prev;
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a	b
21	hhh
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handler t2 read a next;
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a	b
22	iii
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handler t2 read a next;
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a	b
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handler t2 read a=(15);
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a	b
15	bbb
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handler t2 read a=(16);
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a	b
16	ccc
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handler t2 read a=(19,"fff");
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ERROR 42000: Too many key parts specified; max 1 parts allowed
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handler t2 read b=(19,"fff");
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a	b
19	fff
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handler t2 read b=(19,"yyy");
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a	b
19	yyy
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handler t2 read b=(19);
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a	b
19	fff
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handler t1 read a last;
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ERROR 42S02: Unknown table 't1' in HANDLER
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handler t2 read a=(11);
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a	b
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handler t2 read a>=(11);
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a	b
14	aaa
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handler t2 read a=(18);
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a	b
18	eee
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handler t2 read a>=(18);
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a	b
18	eee
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handler t2 read a>(18);
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a	b
19	fff
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handler t2 read a<=(18);
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a	b
18	eee
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handler t2 read a<(18);
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a	b
17	ddd
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handler t2 read a first limit 5;
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a	b
14	aaa
15	bbb
16	ccc
16	xxx
17	ddd
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handler t2 read a next  limit 3;
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a	b
18	eee
19	fff
19	yyy
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handler t2 read a prev  limit 10;
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a	b
19	fff
18	eee
17	ddd
16	xxx
16	ccc
15	bbb
14	aaa
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handler t2 read a>=(16) limit 4;
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a	b
16	ccc
16	xxx
17	ddd
18	eee
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handler t2 read a>=(16) limit 2,2;
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a	b
17	ddd
18	eee
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handler t2 read a last  limit 3;
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a	b
22	iii
21	hhh
20	ggg
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handler t2 read a=(19);
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a	b
19	fff
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handler t2 read a=(19) where b="yyy";
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a	b
19	yyy
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handler t2 read first;
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a	b
17	ddd
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handler t2 read next;
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a	b
18	eee
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handler t2 read next;
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a	b
19	fff
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handler t2 read last;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
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handler t2 close;
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handler t1 open;
handler t1 read a next;
a	b
14	aaa
handler t1 read a next;
a	b
15	bbb
handler t1 close;
handler t1 open;
handler t1 read a prev;
a	b
22	iii
handler t1 read a prev;
a	b
21	hhh
handler t1 close;
handler t1 open as t2;
handler t2 read first;
a	b
17	ddd
alter table t1 engine = MyISAM;
handler t2 read first;
ERROR 42S02: Unknown table 't2' in HANDLER
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handler t1 open as t2;
drop table t1;
create table t1 (a int);
insert into t1 values (17);
handler t2 read first;
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ERROR 42S02: Unknown table 't2' in HANDLER
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handler t1 open as t2;
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alter table t1 engine=MEMORY;
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handler t2 read first;
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ERROR 42S02: Unknown table 't2' in HANDLER
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drop table t1;
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create table t1 (a int);
insert into t1 values (1),(2),(3),(4),(5),(6);
delete from t1 limit 2;
handler t1 open;
handler t1 read first;
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handler t1 read first limit 1,1;
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handler t1 read first limit 2,2;
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delete from t1 limit 3;
handler t1 read first;
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drop table t1;
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create table t1(a int, index(a));
insert into t1 values (1), (2), (3);
handler t1 open;
handler t1 read a=(W);
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ERROR 42S22: Unknown column 'W' in 'field list'
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handler t1 read a=(a);
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ERROR HY000: Incorrect arguments to HANDLER ... READ
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drop table t1;
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create table t1 (a char(5));
insert into t1 values ("Ok");
handler t1 open as t;
handler t read first;
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Ok
use mysql;
handler t read first;
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Ok
handler t close;
handler test.t1 open as t;
handler t read first;
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Ok
handler t close;
use test;
drop table t1;
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create table t1 ( a int, b int, INDEX a (a) );
insert into t1 values (1,2), (2,1);
handler t1 open;
handler t1 read a=(1) where b=2;
a	b
1	2
handler t1 read a=(1) where b=3;
a	b
handler t1 read a=(1) where b=1;
a	b
handler t1 close;
drop table t1;
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drop database if exists test_test;
create database test_test;
use test_test;
create table t1(table_id char(20) primary key);
insert into t1 values ('test_test.t1');
insert into t1 values ('');
handler t1 open;
handler t1 read first limit 9;
table_id
test_test.t1

create table t2(table_id char(20) primary key);
insert into t2 values ('test_test.t2');
insert into t2 values ('');
handler t2 open;
handler t2 read first limit 9;
table_id
test_test.t2

use test;
drop table if exists t1;
create table t1(table_id char(20) primary key);
insert into t1 values ('test.t1');
insert into t1 values ('');
handler t1 open;
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ERROR 42000: Not unique table/alias: 't1'
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use test;
handler test.t1 read first limit 9;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'read first limit 9' at line 1
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handler test_test.t1 read first limit 9;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'read first limit 9' at line 1
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handler t1 read first limit 9;
table_id
test_test.t1

handler test_test.t2 read first limit 9;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'read first limit 9' at line 1
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handler t2 read first limit 9;
table_id
test_test.t2

handler test_test.t1 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
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handler t1 close;
drop table test_test.t1;
handler test_test.t2 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
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handler t2 close;
drop table test_test.t2;
drop database test_test;
use test;
handler test.t1 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
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handler t1 close;
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ERROR 42S02: Unknown table 't1' in HANDLER
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drop table test.t1;
drop database if exists test_test;
drop table if exists t1;
drop table if exists t2;
drop table if exists t3;
create database test_test;
use test_test;
create table t1 (c1 char(20));
insert into t1 values ('test_test.t1');
create table t3 (c1 char(20));
insert into t3 values ('test_test.t3');
handler t1 open;
handler t1 read first limit 9;
c1
test_test.t1
handler t1 open h1;
handler h1 read first limit 9;
c1
test_test.t1
use test;
create table t1 (c1 char(20));
create table t2 (c1 char(20));
create table t3 (c1 char(20));
insert into t1 values ('t1');
insert into t2 values ('t2');
insert into t3 values ('t3');
handler t1 open;
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ERROR 42000: Not unique table/alias: 't1'
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handler t2 open t1;
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ERROR 42000: Not unique table/alias: 't1'
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handler t3 open t1;
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ERROR 42000: Not unique table/alias: 't1'
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handler t1 read first limit 9;
c1
test_test.t1
handler test.t1 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
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handler test.t1 open h1;
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ERROR 42000: Not unique table/alias: 'h1'
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handler test_test.t1 open h1;
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ERROR 42000: Not unique table/alias: 'h1'
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handler test_test.t3 open h3;
handler test.t1 open h2;
handler t1 read first limit 9;
c1
test_test.t1
handler h1 read first limit 9;
c1
test_test.t1
handler h2 read first limit 9;
c1
t1
handler h3 read first limit 9;
c1
test_test.t3
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handler h2 read first limit 9;
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c1
t1
handler test.h1 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
handler t1 close;
handler h1 close;
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handler h2 close;
handler t1 read first limit 9;
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ERROR 42S02: Unknown table 't1' in HANDLER
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handler h1 read first limit 9;
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ERROR 42S02: Unknown table 'h1' in HANDLER
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handler h2 read first limit 9;
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ERROR 42S02: Unknown table 'h2' in HANDLER
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handler h3 read first limit 9;
c1
test_test.t3
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handler h3 read first limit 9;
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c1
test_test.t3
use test_test;
handler h3 read first limit 9;
c1
test_test.t3
handler test.h3 read first limit 9;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'read first limit 9' at line 1
handler h3 close;
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use test;
drop table t3;
drop table t2;
drop table t1;
drop database test_test;
create table t1 (c1 char(20));
insert into t1 values ("t1");
handler t1 open as h1;
handler h1 read first limit 9;
c1
t1
create table t2 (c1 char(20));
insert into t2 values ("t2");
handler t2 open as h2;
handler h2 read first limit 9;
c1
t2
create table t3 (c1 char(20));
insert into t3 values ("t3");
handler t3 open as h3;
handler h3 read first limit 9;
c1
t3
create table t4 (c1 char(20));
insert into t4 values ("t4");
handler t4 open as h4;
handler h4 read first limit 9;
c1
t4
create table t5 (c1 char(20));
insert into t5 values ("t5");
handler t5 open as h5;
handler h5 read first limit 9;
c1
t5
alter table t1 engine=MyISAM;
handler h1 read first limit 9;
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ERROR 42S02: Unknown table 'h1' in HANDLER
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handler h2 read first limit 9;
c1
t2
handler h3 read first limit 9;
c1
t3
handler h4 read first limit 9;
c1
t4
handler h5 read first limit 9;
c1
t5
alter table t5 engine=MyISAM;
handler h1 read first limit 9;
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ERROR 42S02: Unknown table 'h1' in HANDLER
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handler h2 read first limit 9;
c1
t2
handler h3 read first limit 9;
c1
t3
handler h4 read first limit 9;
c1
t4
handler h5 read first limit 9;
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ERROR 42S02: Unknown table 'h5' in HANDLER
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alter table t3 engine=MyISAM;
handler h1 read first limit 9;
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ERROR 42S02: Unknown table 'h1' in HANDLER
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handler h2 read first limit 9;
c1
t2
handler h3 read first limit 9;
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ERROR 42S02: Unknown table 'h3' in HANDLER
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handler h4 read first limit 9;
c1
t4
handler h5 read first limit 9;
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ERROR 42S02: Unknown table 'h5' in HANDLER
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handler h2 close;
handler h4 close;
handler t1 open as h1_1;
handler t1 open as h1_2;
handler t1 open as h1_3;
handler h1_1 read first limit 9;
c1
t1
handler h1_2 read first limit 9;
c1
t1
handler h1_3 read first limit 9;
c1
t1
alter table t1 engine=MyISAM;
handler h1_1 read first limit 9;
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ERROR 42S02: Unknown table 'h1_1' in HANDLER
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handler h1_2 read first limit 9;
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ERROR 42S02: Unknown table 'h1_2' in HANDLER
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handler h1_3 read first limit 9;
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ERROR 42S02: Unknown table 'h1_3' in HANDLER
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drop table t1;
drop table t2;
drop table t3;
drop table t4;
drop table t5;
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create table t1 (c1 int);
insert into t1 values (1);
handler t1 open;
handler t1 read first;
c1
1
send the below to another connection, do not wait for the result
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optimize table t1;
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proceed with the normal connection
handler t1 read next;
c1
1
handler t1 close;
read the result from the other connection
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
proceed with the normal connection
drop table t1;
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CREATE TABLE t1 (  no1 smallint(5) NOT NULL default '0',  no2 int(10) NOT NULL default '0',  PRIMARY KEY  (no1,no2));
INSERT INTO t1 VALUES (1,274),(1,275),(2,6),(2,8),(4,1),(4,2);
HANDLER t1 OPEN;
HANDLER t1 READ `primary` = (1, 1000);
no1	no2
HANDLER t1 READ `primary` PREV;
no1	no2
1	275
DROP TABLE t1;
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create table t1 (c1 int);
insert into t1 values (14397);
flush tables with read lock;
drop table t1;
ERROR HY000: Can't execute the query because you have a conflicting read lock
send the below to another connection, do not wait for the result
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drop table t1;
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proceed with the normal connection
select * from t1;
c1
14397
unlock tables;
read the result from the other connection
proceed with the normal connection
select * from t1;
ERROR 42S02: Table 'test.t1' doesn't exist
drop table if exists t1;
Warnings:
Note	1051	Unknown table 't1'
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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;
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drop table if exists t1;
create table t1 (a int);
handler t1 open as t1_alias;
handler t1_alias read a next;
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ERROR 42000: Key 'a' doesn't exist in table 't1_alias'
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handler t1_alias READ a next where inexistent > 0;
ERROR 42S22: Unknown column 'inexistent' in 'field list'
handler t1_alias read a next;
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ERROR 42000: Key 'a' doesn't exist in table 't1_alias'
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handler t1_alias READ a next where inexistent > 0;
ERROR 42S22: Unknown column 'inexistent' in 'field list'
handler t1_alias close;
drop table t1;
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drop table if exists t1,t2;
create table t1 (c1 int);
create table t2 (c1 int);
insert into t1 values (1);
insert into t2 values (2);
connection: default
handler t1 open;
handler t1 read first;
c1
1
connection: flush
flush tables;;
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connection: waiter 
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connection: default
handler t2 open;
handler t2 read first;
c1
2
handler t1 read next;
c1
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1
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handler t1 close;
handler t2 close;
drop table t1,t2;
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drop table if exists t1, t0;
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create table t1 (c1 int);
connection: default
handler t1 open;
handler t1 read first;
c1
connection: flush
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rename table t1 to t0;;
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connection: waiter 
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connection: default
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#
# RENAME placed two pending locks and waits.
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# When HANDLER t0 OPEN does open_tables(), it calls
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# mysql_ha_flush(), which in turn closes the open HANDLER for t1.
# RENAME TABLE gets unblocked. If it gets scheduled quickly
# and manages to complete before open_tables()
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# of HANDLER t0 OPEN, open_tables() and therefore the whole
# HANDLER t0 OPEN succeeds. Otherwise open_tables() 
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# notices a pending or active exclusive metadata lock on t2
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# and the whole HANDLER t0 OPEN fails with ER_LOCK_DEADLOCK
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# error.
#
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handler t0 open;
handler t0 close;
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connection: flush
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handler t1 read next;
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ERROR 42S02: Unknown table 't1' in HANDLER
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handler t1 close;
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ERROR 42S02: Unknown table 't1' in HANDLER
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drop table t0;
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drop table if exists t1;
create temporary table t1 (a int, b char(1), key a(a), key b(a,b));
insert into t1 values (0,"a"),(1,"b"),(2,"c"),(3,"d"),(4,"e"),
(5,"f"),(6,"g"),(7,"h"),(8,"i"),(9,"j");
select a,b from t1;
a	b
0	a
1	b
2	c
3	d
4	e
5	f
6	g
7	h
8	i
9	j
handler t1 open as a1;
handler a1 read a first;
a	b
0	a
handler a1 read a next;
a	b
1	b
handler a1 read a next;
a	b
2	c
select a,b from t1;
ERROR HY000: Can't reopen table: 'a1'
handler a1 read a prev;
a	b
1	b
handler a1 read a prev;
a	b
0	a
handler a1 read a=(6) where b="g";
a	b
6	g
handler a1 close;
select a,b from t1;
a	b
0	a
1	b
2	c
3	d
4	e
5	f
6	g
7	h
8	i
9	j
handler t1 open as a2;
handler a2 read a first;
a	b
0	a
handler a2 read a last;
a	b
9	j
handler a2 read a prev;
a	b
8	i
handler a2 close;
drop table t1;
654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744
drop table if exists t1,t2;
create table t1 (a int);
handler t1 open as t1_alias;
drop table t1;
create table t1 (a int);
handler t1 open as t1_alias;
flush tables;
drop table t1;
create table t1 (a int);
handler t1 open as t1_alias;
handler t1_alias close;
drop table t1;
create table t1 (a int);
handler t1 open as t1_alias;
handler t1_alias read first;
a
drop table t1;
handler t1_alias read next;
ERROR 42S02: Unknown table 't1_alias' in HANDLER
create table t1 (a int);
create temporary table t2 (a int, key(a));
handler t1 open as a1;
handler t2 open as a2;
handler a2 read a first;
a
drop table t1, t2;
handler a2 read a next;
ERROR 42S02: Unknown table 'a2' in HANDLER
handler a1 close;
ERROR 42S02: Unknown table 'a1' in HANDLER
create table t1 (a int, key(a));
create table t2 like t1;
handler t1 open as a1;
handler t2 open as a2;
handler a1 read a first;
a
handler a2 read a first;
a
alter table t1 add b int;
handler a1 close;
ERROR 42S02: Unknown table 'a1' in HANDLER
handler a2 close;
drop table t1, t2;
create table t1 (a int, key(a));
handler t1 open as a1;
handler a1 read a first;
a
rename table t1 to t2;
handler a1 read a first;
ERROR 42S02: Unknown table 'a1' in HANDLER
drop table t2;
create table t1 (a int, key(a));
create table t2 like t1;
handler t1 open as a1;
handler t2 open as a2;
handler a1 read a first;
a
handler a2 read a first;
a
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	Table is already up to date
handler a1 close;
ERROR 42S02: Unknown table 'a1' in HANDLER
handler a2 close;
drop table t1, t2;
create table t1 (a int, b char(1), key a(a), key b(a,b));
insert into t1 values (0,"a"),(1,"b"),(2,"c"),(3,"d"),(4,"e"),
(5,"f"),(6,"g"),(7,"h"),(8,"i"),(9,"j");
handler t1 open;
handler t1 read a first;
a	b
0	a
handler t1 read a next;
a	b
1	b
flush tables;
handler t1 read a next;
a	b
0	a
handler t1 read a next;
a	b
1	b
flush tables with read lock;
handler t1 read a next;
a	b
0	a
unlock tables;
drop table t1;
handler t1 read a next;
ERROR 42S02: Unknown table 't1' in HANDLER
745
drop table if exists t1;
746 747 748
# First test case which is supposed trigger the execution
# path on which problem was discovered.
create table t1 (a int);
749 750
insert into t1 values (1);
handler t1 open;
751
lock table t1 write;
752 753
alter table t1 engine=memory;
handler t1 read a next;
754 755 756 757 758 759 760 761 762 763 764 765 766 767 768
ERROR HY000: Table storage engine for 't1' doesn't have this option
handler t1 close;
unlock tables;
drop table t1;
# Now test case which was reported originally but which no longer
# triggers execution path which has caused the problem.
create table t1 (a int, key(a));
insert into t1 values (1);
handler t1 open;
alter table t1 engine=memory;
# Since S metadata lock was already acquired at HANDLER OPEN time
# and TL_READ lock requested by HANDLER READ is compatible with
# ALTER's TL_WRITE_ALLOW_READ the below statement should succeed
# without waiting. The old version of table should be used in it.
handler t1 read a next;
769 770
a
1
771 772
handler t1 close;
drop table t1;
773 774 775 776
USE information_schema;
HANDLER COLUMNS OPEN;
ERROR HY000: Incorrect usage of HANDLER OPEN and information_schema
USE test;
777
#
778 779 780 781 782 783 784 785 786 787 788
# Add test coverage for HANDLER and LOCK TABLES, HANDLER and DDL.
#
drop table if exists t1, t2, t3;
create table t1 (a int, key a (a));
insert into t1 (a) values (1), (2), (3), (4), (5);
create table t2 (a int, key a (a)) select * from t1;
create temporary table t3 (a int, key a (a)) select * from t2;
handler t1 open;
handler t2 open;
handler t3 open;
#
789 790
# No HANDLER sql is allowed under LOCK TABLES.
# But it does not implicitly closes all handlers.
791
#
792
lock table t1 read;
793 794 795 796 797 798 799 800
handler t1 open;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
handler t1 read next;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
handler t2 close;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
handler t3 open;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
801 802
# After UNLOCK TABLES handlers should be around and
# we should be able to continue reading through them.
803 804
unlock tables;
handler t1 read next;
805 806 807 808 809 810
a
1
handler t1 close;
handler t2 read next;
a
1
811 812
handler t2 close;
handler t3 read next;
813 814 815 816
a
1
handler t3 close;
drop temporary table t3;
817
#
818
# Other operations that implicitly close handler:
819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926
#
# TRUNCATE
#
handler t1 open;
truncate table t1;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
handler t1 open;
#
# CREATE TRIGGER
#
create trigger t1_ai after insert on t1 for each row set @a=1;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# DROP TRIGGER
#
handler t1 open;
drop trigger t1_ai;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# ALTER TABLE
# 
handler t1 open;
alter table t1 add column b int;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# ANALYZE TABLE
# 
handler t1 open;
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Table is already up to date
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# OPTIMIZE TABLE
# 
handler t1 open;
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# REPAIR TABLE
# 
handler t1 open;
repair table t1;
Table	Op	Msg_type	Msg_text
test.t1	repair	status	OK
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# DROP TABLE, naturally.
# 
handler t1 open;
drop table t1;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
create table t1 (a int, b int, key a (a)) select a from t2;
#
# RENAME TABLE, naturally
# 
handler t1 open;
rename table t1 to t3;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# CREATE TABLE (even with IF NOT EXISTS clause,
# and the table exists).
# 
handler t2 open;
create table if not exists t2 (a int);
Warnings:
Note	1050	Table 't2' already exists
handler t2 read next;
ERROR 42S02: Unknown table 't2' in HANDLER
rename table t3 to t1;
drop table t2;
#
# FLUSH TABLE doesn't close the table but loses the position
# 
handler t1 open;
handler t1 read a prev;
b	a
NULL	5
flush table t1;
handler t1 read a prev;
b	a
NULL	5
handler t1 close;
#
# FLUSH TABLES WITH READ LOCK behaves like FLUSH TABLE.
# 
handler t1 open;
handler t1 read a prev;
b	a
NULL	5
flush tables with read lock;
handler t1 read a prev;
b	a
NULL	5
handler t1 close;
unlock tables;
#
927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023
# Let us also check that these operations behave in similar
# way under LOCK TABLES.
#
# TRUNCATE under LOCK TABLES.
#
handler t1 open;
lock tables t1 write;
truncate table t1;
unlock tables;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
handler t1 open;
#
# CREATE TRIGGER under LOCK TABLES.
#
lock tables t1 write;
create trigger t1_ai after insert on t1 for each row set @a=1;
unlock tables;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# DROP TRIGGER under LOCK TABLES.
#
handler t1 open;
lock tables t1 write;
drop trigger t1_ai;
unlock tables;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# ALTER TABLE under LOCK TABLES.
# 
handler t1 open;
lock tables t1 write;
alter table t1 drop column b;
unlock tables;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# ANALYZE TABLE under LOCK TABLES.
# 
handler t1 open;
lock tables t1 write;
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Table is already up to date
unlock tables;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# OPTIMIZE TABLE under LOCK TABLES.
# 
handler t1 open;
lock tables t1 write;
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
unlock tables;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# REPAIR TABLE under LOCK TABLES.
# 
handler t1 open;
lock tables t1 write;
repair table t1;
Table	Op	Msg_type	Msg_text
test.t1	repair	status	OK
unlock tables;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
#
# DROP TABLE under LOCK TABLES, naturally.
# 
handler t1 open;
lock tables t1 write;
drop table t1;
unlock tables;
handler t1 read next;
ERROR 42S02: Unknown table 't1' in HANDLER
create table t1 (a int, b int, key a (a));
insert into t1 (a) values (1), (2), (3), (4), (5);
#
# FLUSH TABLE doesn't close the table but loses the position
# 
handler t1 open;
handler t1 read a prev;
a	b
5	NULL
lock tables t1 write;
flush table t1;
unlock tables;
handler t1 read a prev;
a	b
5	NULL
handler t1 close;
#
1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036
# Explore the effect of HANDLER locks on concurrent DDL
#
handler t1 open;
# Establishing auxiliary connections con1, con2, con3
# --> connection con1;
# Sending:
drop table t1 ;
# We can't use connection 'default' as wait_condition will 
# autoclose handlers.
# --> connection con2 
# Waitng for 'drop table t1' to get blocked...
# --> connection default
handler t1 read a prev;
1037 1038
a	b
5	NULL
1039
handler t1 read a prev;
1040 1041
a	b
4	NULL
1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107
handler t1 close;
# --> connection con1
# Reaping 'drop table t1'...
# --> connection default
#
# Explore the effect of HANDLER locks in parallel with SELECT 
#
create table t1 (a int, key a (a));
insert into t1 (a) values (1), (2), (3), (4), (5);
begin;
select * from t1;
a
1
2
3
4
5
handler t1 open;
handler t1 read a prev;
a
5
handler t1 read a prev;
a
4
handler t1 close;
# --> connection con1;
# Sending:
drop table t1 ;
# --> connection con2 
# Waiting for 'drop table t1' to get blocked...
# --> connection default
# We can still use the table, it's part of the transaction
select * from t1;
a
1
2
3
4
5
# Such are the circumstances that t1 is a part of transaction,
# thus we can reopen it in the handler
handler t1 open;
# We can commit the transaction, it doesn't close the handler
# and doesn't let DROP to proceed.
commit;
handler t1 read a prev;
a
5
handler t1 read a prev;
a
4
handler t1 read a prev;
a
3
handler t1 close;
# --> connection con1
# Now drop can proceed
# Reaping 'drop table t1'...
# --> connection default
#
# Demonstrate that HANDLER locks and transaction locks
# reside in the same context, and we don't back-off
# when have transaction or handler locks.
#
create table t1 (a int, key a (a));
insert into t1 (a) values (1), (2), (3), (4), (5);
1108 1109
create table t0 (a int, key a (a));
insert into t0 (a) values (1), (2), (3), (4), (5);
1110 1111 1112 1113 1114 1115 1116 1117 1118 1119
begin;
select * from t1;
a
1
2
3
4
5
# --> connection con2 
# Sending:
1120
rename table t0 to t3, t1 to t0, t3 to t1;
1121
# --> connection con1 
1122
# Waiting for 'rename table ...' to get blocked...
1123
# --> connection default
1124
handler t0 open;
1125
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
1126
select * from t0;
1127 1128 1129 1130 1131
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
handler t1 open;
commit;
handler t1 close;
# --> connection con2
1132
# Reaping 'rename table ...'...
1133 1134 1135 1136 1137 1138
# --> connection default
handler t1 open;
handler t1 read a prev;
a
5
handler t1 close;
1139
drop table t0;
1140
#
1141 1142 1143 1144 1145
# Originally there was a deadlock error in this test.
# With implementation of deadlock detector
# we no longer deadlock, but block and wait on a lock.
# The HANDLER is auto-closed as soon as the connection
# sees a pending conflicting lock against it.
1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156
#
create table t2 (a int, key a (a));
handler t1 open;
# --> connection con1
lock tables t2 read;
# --> connection con2
# Sending 'drop table t2'...
drop table t2;
# --> connection con1
# Waiting for 'drop table t2' to get blocked...
# --> connection default
1157
# Sending 'select * from t2'
1158 1159
select * from t2;
# --> connection con1
1160
# Waiting for 'select * from t2' to get blocked...
1161 1162 1163 1164
unlock tables;
# --> connection con2
# Reaping 'drop table t2'...
# --> connection default
1165 1166
# Reaping 'select * from t2'
ERROR 42S02: Table 'test.t2' doesn't exist
1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335
handler t1 close;
#
# ROLLBACK TO SAVEPOINT releases transactional locks,
# but has no effect on open HANDLERs
#
create table t2 like t1;
create table t3 like t1;
begin;
# Have something before the savepoint
select * from t3;
a
savepoint sv;
handler t1 open;
handler t1 read a first;
a
1
handler t1 read a next;
a
2
select * from t2;
a
# --> connection con1
# Sending:
drop table t1;
# --> connection con2
# Sending:
drop table t2;
# --> connection default
# Let DROP TABLE statements sync in. We must use
# a separate connection for that, because otherwise SELECT
# will auto-close the HANDLERs, becaues there are pending
# exclusive locks against them.
# --> connection con3
# Waiting for 'drop table t1' to get blocked...
# Waiting for 'drop table t2' to get blocked...
# Demonstrate that t2 lock was released and t2 was dropped
# after ROLLBACK TO SAVEPOINT
# --> connection default
rollback to savepoint sv;
# --> connection con2
# Reaping 'drop table t2'...
# Demonstrate that ROLLBACK TO SAVEPOINT didn't release the handler
# lock.
# --> connection default
handler t1 read a next;
a
3
handler t1 read a next;
a
4
# Demonstrate that the drop will go through as soon as we close the 
# HANDLER
handler t1 close;
# connection con1
# Reaping 'drop table t1'...
# --> connection default
commit;
drop table t3;
#
# A few special cases when using SAVEPOINT/ROLLBACK TO
# SAVEPOINT and HANDLER.
#
# Show that rollback to the savepoint taken in the beginning
# of the transaction doesn't release mdl lock on
# the HANDLER that was opened later.
#
create table t1 (a int, key a(a));
insert into t1 (a) values (1), (2), (3), (4), (5);
create table t2 like t1;
begin;
savepoint sv;
handler t1 open;
handler t1 read a first;
a
1
handler t1 read a next;
a
2
select * from t2;
a
# --> connection con1
# Sending:
drop table t1;
# --> connection con2
# Sending:
drop table t2;
# --> connection default
# Let DROP TABLE statements sync in. We must use
# a separate connection for that, because otherwise SELECT
# will auto-close the HANDLERs, becaues there are pending
# exclusive locks against them.
# --> connection con3
# Waiting for 'drop table t1' to get blocked...
# Waiting for 'drop table t2' to get blocked...
# Demonstrate that t2 lock was released and t2 was dropped
# after ROLLBACK TO SAVEPOINT
# --> connection default
rollback to savepoint sv;
# --> connection con2
# Reaping 'drop table t2'...
# Demonstrate that ROLLBACK TO SAVEPOINT didn't release the handler
# lock.
# --> connection default
handler t1 read a next;
a
3
handler t1 read a next;
a
4
# Demonstrate that the drop will go through as soon as we close the 
# HANDLER
handler t1 close;
# connection con1
# Reaping 'drop table t1'...
# --> connection default
commit;
#
# Show that rollback to the savepoint taken in the beginning
# of the transaction works properly (no valgrind warnins, etc),
# even though it's done after the HANDLER mdl lock that was there
# at the beginning is released and added again.
#
create table t1 (a int, key a(a));
insert into t1 (a) values (1), (2), (3), (4), (5);
create table t2 like t1;
create table t3 like t1;
insert into t3 (a) select a from t1;
begin;
handler t1 open;
savepoint sv;
handler t1 read a first;
a
1
select * from t2;
a
handler t1 close;
handler t3 open;
handler t3 read a first;
a
1
rollback to savepoint sv;
# --> connection con1
drop table t1, t2;
# Sending:
drop table t3;
# Let DROP TABLE statement sync in.
# --> connection con2
# Waiting for 'drop table t3' to get blocked...
# Demonstrate that ROLLBACK TO SAVEPOINT didn't release the handler
# lock.
# --> connection default
handler t3 read a next;
a
2
# Demonstrate that the drop will go through as soon as we close the 
# HANDLER
handler t3 close;
# connection con1
# Reaping 'drop table t3'...
# --> connection default
commit;
# 
# If we have to wait on an exclusive locks while having
# an open HANDLER, ER_LOCK_DEADLOCK is reported.
#
create table t1 (a int, key a(a));
create  table t2 like t1;
handler t1 open;
# --> connection con1
1336
lock table t1 write, t2 write;
1337 1338
# --> connection default
drop table t2;
1339 1340 1341 1342
# --> connection con2
# Waiting for 'drop table t2' to get blocked...
# --> connection con1
drop table t1;
1343
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
1344 1345
unlock tables;
# --> connection default 
1346 1347
# Demonstrate that there is no deadlock with FLUSH TABLE,
# even though it is waiting for the other table to go away
1348
create table t2 like t1;
1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362
# Sending:
flush table t2;
# --> connection con2
drop table t1;
# --> connection con1
unlock tables;
# --> connection default
# Reaping 'flush table t2'...
drop table t2;
# 
# Bug #46224 HANDLER statements within a transaction might 
#            lead to deadlocks
#
create table t1 (a int, key a(a));
1363
insert into t1 values (1), (2);
1364 1365 1366 1367
# --> connection default
begin;
select * from t1;
a
1368 1369
1
2
1370 1371
handler t1 open;
# --> connection con1
1372
# Sending:
1373
lock tables t1 write;
1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386
# --> connection con2
# Check that 'lock tables t1 write' waits until transaction which
# has read from the table commits.
# --> connection default
# The below 'handler t1 read ...' should not be blocked as
# 'lock tables t1 write' has not succeeded yet.
handler t1 read a next;
a
1
# Unblock 'lock tables t1 write'.
commit;
# --> connection con1
# Reap 'lock tables t1 write'.
1387 1388 1389 1390 1391
# --> connection default
# Sending:
handler t1 read a next;
# --> connection con1
# Waiting for 'handler t1 read a next' to get blocked...
1392 1393
# The below 'drop table t1' should be able to proceed without
# waiting as it will force HANDLER to be closed.
1394
drop table t1;
1395
unlock tables;
1396 1397
# --> connection default 
# Reaping 'handler t1 read a next'...
1398
ERROR 42S02: Table 'test.t1' doesn't exist
1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462
handler t1 close;
# --> connection con1
# --> connection con2
# --> connection con3
#
# A temporary table test.
# Check that we don't loose positions of HANDLER opened
# against a temporary table.
#
create table t1 (a int, b int, key a (a));
insert into t1 (a) values (1), (2), (3), (4), (5);
create temporary table t2 (a int, b int, key a (a));
insert into t2 (a) select a from t1;
handler t1 open;
handler t1 read a next;
a	b
1	NULL
handler t2 open;
handler t2 read a next;
a	b
1	NULL
flush table t1;
handler t2 read a next;
a	b
2	NULL
# Sic: the position is lost
handler t1 read a next;
a	b
1	NULL
select * from t1;
a	b
1	NULL
2	NULL
3	NULL
4	NULL
5	NULL
# Sic: the position is not lost
handler t2 read a next;
a	b
3	NULL
select * from t2;
ERROR HY000: Can't reopen table: 't2'
handler t2 read a next;
a	b
4	NULL
drop table t1;
drop temporary table t2;
#
# A test for lock_table_names()/unlock_table_names() function.
# It should work properly in presence of open HANDLER.
#
create table t1 (a int, b int, key a (a));
create table t2 like t1;
create table t3 like t1;
create table t4 like t1;
handler t1 open;
handler t2 open;
rename table t4 to t5, t3 to t4, t5 to t3;
handler t1 read first;
a	b
handler t2 read first;
a	b
drop table t1, t2, t3, t4;
#
1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483
# A test for FLUSH TABLES WITH READ LOCK and HANDLER statements.
#
set autocommit=0;
create table t1 (a int, b int, key a (a));
insert into t1 (a, b) values (1, 1), (2, 1), (3, 2), (4, 2), (5, 5);
create table t2 like t1;
insert into t2 (a, b) select a, b from t1;
create table t3 like t1;
insert into t3 (a, b) select a, b from t1;
commit;
flush tables with read lock;
handler t1 open;
lock table t1 read;
handler t1 read next;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
# This implicitly leaves LOCK TABLES but doesn't drop the GLR
lock table not_exists_write read;
ERROR 42S02: Table 'test.not_exists_write' doesn't exist
# We still have the read lock.
drop table t1;
ERROR HY000: Can't execute the query because you have a conflicting read lock
1484 1485 1486 1487
handler t1 read next;
a	b
1	1
handler t1 close;
1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561
handler t1 open;
select a from t2;
a
1
2
3
4
5
handler t1 read next;
a	b
1	1
flush tables with read lock;
handler t2 open;
flush tables with read lock;
handler t1 read next;
a	b
1	1
select a from t3;
a
1
2
3
4
5
handler t2 read next;
a	b
1	1
handler t1 close;
rollback;
handler t2 close;
drop table t1;
ERROR HY000: Can't execute the query because you have a conflicting read lock
commit;
flush tables;
drop table t1;
ERROR HY000: Can't execute the query because you have a conflicting read lock
unlock tables;
drop table t1;
set autocommit=default;
drop table t2, t3;
# 
# HANDLER statement and operation-type aware metadata locks.
# Check that when we clone a ticket for HANDLER we downrade
# the lock.
#
# Establish an auxiliary connection con1.
# -> connection default
create table t1 (a int, b int, key a (a));
insert into t1 (a, b) values (1, 1), (2, 1), (3, 2), (4, 2), (5, 5);
begin;
insert into t1 (a, b) values (6, 6);
handler t1 open;
handler t1 read a last;
a	b
6	6
insert into t1 (a, b) values (7, 7);
handler t1 read a last;
a	b
7	7
commit;
# -> connection con1
# Demonstrate that the HANDLER doesn't hold MDL_SHARED_WRITE.
lock table t1 write;
unlock tables;
# -> connection default
handler t1 read a prev;
a	b
6	6
handler t1 close;
# Cleanup.
drop table t1;
# -> connection con1
# -> connection default
#
1562 1563 1564 1565 1566 1567 1568 1569
# A test for Bug#50555 "handler commands crash server in
# my_hash_first()". 
#
handler no_such_table read no_such_index first;
ERROR 42S02: Unknown table 'no_such_table' in HANDLER
handler no_such_table close;
ERROR 42S02: Unknown table 'no_such_table' in HANDLER
#
1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581
# Bug#50907 Assertion `hash_tables->table->next == __null' on 
#           HANDLER OPEN
#
DROP TABLE IF EXISTS t1, t2;
CREATE TEMPORARY TABLE t1 (i INT);
CREATE TEMPORARY TABLE t2 (i INT);
HANDLER t2 OPEN;
HANDLER t2 READ FIRST;
i
HANDLER t2 CLOSE;
DROP TABLE t1, t2;
#
1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594
# Bug#50912 Assertion `ticket->m_type >= mdl_request->type'
#           failed on HANDLER + I_S
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (id INT);
HANDLER t1 OPEN;
SELECT table_name, table_comment FROM information_schema.tables
WHERE table_schema= 'test' AND table_name= 't1';
table_name	table_comment
t1	
HANDLER t1 CLOSE;
DROP TABLE t1;
#
1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666
# Test for bug #50908 "Assertion `handler_tables_hash.records == 0'
#                      failed in enter_locked_tables_mode".
#
drop tables if exists t1, t2;
drop function if exists f1;
create table t1 (i int);
insert into t1 values (1), (2);
create table t2 (j int);
insert into t2 values (1);
create function f1() returns int return (select count(*) from t2);
# Check that open HANDLER survives statement executed in
# prelocked mode.
handler t1 open;
handler t1 read next;
i
1
# The below statement were aborted due to an assertion failure.
select f1() from t2;
f1()
1
handler t1 read next;
i
2
handler t1 close;
# Check that the same happens under GLOBAL READ LOCK.
flush tables with read lock;
handler t1 open;
handler t1 read next;
i
1
select f1() from t2;
f1()
1
handler t1 read next;
i
2
unlock tables;
handler t1 close;
# Now, check that the same happens if LOCK TABLES is executed.
handler t1 open;
handler t1 read next;
i
1
lock table t2 read;
select * from t2;
j
1
unlock tables;
handler t1 read next;
i
2
handler t1 close;
# Finally, check scenario with GRL and LOCK TABLES.
flush tables with read lock;
handler t1 open;
handler t1 read next;
i
1
lock table t2 read;
select * from t2;
j
1
# This unlocks both tables and GRL.
unlock tables;
handler t1 read next;
i
2
handler t1 close;
# Clean-up.
drop function f1;
drop tables t1, t2;
#
1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684
# Test for bug #51136 "Crash in pthread_rwlock_rdlock on TEMPORARY +
#                      HANDLER + LOCK + SP".
# Also see additional coverage for this bug in flush.test.
#
drop tables if exists t1, t2;
create table t1 (i int);
create temporary table t2 (j int);
handler t1 open;
lock table t2 read;
# This commit should not release any MDL locks.
commit;
unlock tables;
# The below statement crashed before the bug fix as it
# has attempted to release metadata lock which was
# already released by commit.
handler t1 close;
drop tables t1, t2;
#
1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709
# Bug#51355 handler stmt cause assertion in
#           bool MDL_context::try_acquire_lock(MDL_request*)
#
DROP TABLE IF EXISTS t1;
# Connection default
CREATE TABLE t1(id INT, KEY id(id));
HANDLER t1 OPEN;
# Connection con51355
# Sending:
DROP TABLE t1;
# Connection default
# This I_S query will cause the handler table to be closed and
# the metadata lock to be released. This will allow DROP TABLE
# to proceed. Waiting for the table to be removed.
# Connection con51355
# Reaping: DROP TABLE t1
# Connection default
HANDLER t1 READ id NEXT;
ERROR 42S02: Table 'test.t1' doesn't exist
HANDLER t1 READ id NEXT;
ERROR 42S02: Table 'test.t1' doesn't exist
HANDLER t1 CLOSE;
# Connection con51355
# Connection default
#
1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724
# BUG #46456: HANDLER OPEN + TRUNCATE + DROP (temporary) TABLE, crash 
#
CREATE TABLE t1 AS SELECT 1 AS f1;
HANDLER t1 OPEN;
TRUNCATE t1;
HANDLER t1 READ FIRST;
ERROR 42S02: Unknown table 't1' in HANDLER
DROP TABLE t1;
CREATE TEMPORARY TABLE t1 AS SELECT 1 AS f1;
HANDLER t1 OPEN;
TRUNCATE t1;
HANDLER t1 READ FIRST;
ERROR 42S02: Unknown table 't1' in HANDLER
DROP TABLE t1;
End of 5.1 tests