path: root/mysql-test/suite/maria/r/maria3.result

select * from INFORMATION_SCHEMA.ENGINES where ENGINE="MARIA";
ENGINE	SUPPORT	COMMENT	TRANSACTIONS	XA	SAVEPOINTS
MARIA	YES	Crash-safe tables with MyISAM heritage	YES	NO	NO
set global storage_engine=maria;
set session storage_engine=maria;
set global maria_page_checksum=0;
set global maria_log_file_size=4294967295;
drop table if exists t1,t2;
SET SQL_WARNINGS=1;
create table t1 (a int not null, key `a` (a) key_block_size=512);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  KEY `a` (`a`) KEY_BLOCK_SIZE=8192
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
drop table t1;
create table t1 (a varchar(2048), key `a` (a) key_block_size=1000000000000000000);
Warnings:
Warning	1071	Specified key was too long; max key length is 1208 bytes
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` varchar(2048) DEFAULT NULL,
  KEY `a` (`a`(1208)) KEY_BLOCK_SIZE=8192
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
drop table t1;
create table t1 (a int not null, key `a` (a) key_block_size=1025);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL,
  KEY `a` (`a`) KEY_BLOCK_SIZE=8192
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
drop table t1;
create table t1 (a int not null, key key_block_size=1024 (a));
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 '=1024 (a))' at line 1
create table t1 (a int not null, key `a` key_block_size=1024 (a));
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 'key_block_size=1024 (a))' at line 1
CREATE TABLE t1 (
c1 INT,
c2 VARCHAR(300),
KEY (c1) KEY_BLOCK_SIZE 1024,
KEY (c2) KEY_BLOCK_SIZE 8192
);
INSERT INTO t1 VALUES (10, REPEAT('a', CEIL(RAND(10) * 300))),
(11, REPEAT('b', CEIL(RAND() * 300))),
(12, REPEAT('c', CEIL(RAND() * 300))),
(13, REPEAT('d', CEIL(RAND() * 300))),
(14, REPEAT('e', CEIL(RAND() * 300))),
(15, REPEAT('f', CEIL(RAND() * 300))),
(16, REPEAT('g', CEIL(RAND() * 300))),
(17, REPEAT('h', CEIL(RAND() * 300))),
(18, REPEAT('i', CEIL(RAND() * 300))),
(19, REPEAT('j', CEIL(RAND() * 300))),
(20, REPEAT('k', CEIL(RAND() * 300))),
(21, REPEAT('l', CEIL(RAND() * 300))),
(22, REPEAT('m', CEIL(RAND() * 300))),
(23, REPEAT('n', CEIL(RAND() * 300))),
(24, REPEAT('o', CEIL(RAND() * 300))),
(25, REPEAT('p', CEIL(RAND() * 300))),
(26, REPEAT('q', CEIL(RAND() * 300))),
(27, REPEAT('r', CEIL(RAND() * 300))),
(28, REPEAT('s', CEIL(RAND() * 300))),
(29, REPEAT('t', CEIL(RAND() * 300))),
(30, REPEAT('u', CEIL(RAND() * 300))),
(31, REPEAT('v', CEIL(RAND() * 300))),
(32, REPEAT('w', CEIL(RAND() * 300))),
(33, REPEAT('x', CEIL(RAND() * 300))),
(34, REPEAT('y', CEIL(RAND() * 300))),
(35, REPEAT('z', CEIL(RAND() * 300)));
INSERT INTO t1 SELECT * FROM t1;
INSERT INTO t1 SELECT * FROM t1;
CHECK TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
REPAIR TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	repair	status	OK
DELETE FROM t1 WHERE c1 >= 10;
CHECK TABLE t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
DROP TABLE t1;
create table t1 (a int) transactional=0;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 TRANSACTIONAL=0
drop table t1;
create table t1 (a int) row_format=dynamic transactional=0;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=DYNAMIC TRANSACTIONAL=0
drop table t1;
create table t1 (a int) row_format=dynamic transactional=1;
Warnings:
Note	1478	Row format set to PAGE because of TRANSACTIONAL=1 option
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=PAGE TRANSACTIONAL=1
alter table t1 row_format=PAGE;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=PAGE TRANSACTIONAL=1
alter table t1 row_format=DYNAMIC;
Warnings:
Note	1478	Row format set to PAGE because of TRANSACTIONAL=1 option
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=PAGE TRANSACTIONAL=1
alter table t1 transactional=0;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=DYNAMIC TRANSACTIONAL=0
alter table t1 row_format=DYNAMIC;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=DYNAMIC TRANSACTIONAL=0
drop table t1;
create table t1 (a int) row_format=PAGE;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=PAGE
drop table t1;
create table t1 (a int) row_format=PAGE TRANSACTIONAL=DEFAULT;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=PAGE
alter table t1 row_format=DYNAMIC;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=DYNAMIC
drop table t1;
create table t1 (a int) transactional=0 row_format=FIXED;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=FIXED TRANSACTIONAL=0
alter table t1 transactional=1;
Warnings:
Note	1478	Row format set to PAGE because of TRANSACTIONAL=1 option
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=PAGE TRANSACTIONAL=1
alter table t1 transactional=0;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=FIXED TRANSACTIONAL=0
drop table t1;
create table t1 (a int) transactional=0 row_format=FIXED;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=FIXED TRANSACTIONAL=0
alter table t1 transactional=1;
Warnings:
Note	1478	Row format set to PAGE because of TRANSACTIONAL=1 option
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=PAGE TRANSACTIONAL=1
alter table t1 transactional=0;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 ROW_FORMAT=FIXED TRANSACTIONAL=0
drop table t1;
create table `t1` (
t1_name varchar(255) default null,
t1_id int(10) unsigned not null auto_increment,
key (t1_name),
primary key (t1_id)
) engine=maria auto_increment = 1000 default charset=latin1;
lock tables t1 write;
INSERT INTO `t1` VALUES ('bla',1000),('bla',1001),('bla',1002);
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
unlock tables;
create table t2 like t1;
insert into t2 select * from t1;
analyze table t2;
Table	Op	Msg_type	Msg_text
test.t2	analyze	status	Table is already up to date
delete from t2;
insert into t2 select * from t1;
analyze table t2;
Table	Op	Msg_type	Msg_text
test.t2	analyze	status	Table is already up to date
drop table t1,t2;
create table t1 (a bigint auto_increment, primary key(a), b char(255), c varchar(20000));
update t1 set b=repeat('a',100) where a between 1 and 100;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
update t1 set c=repeat('a',8192*2) where a between 200 and 202;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
drop table t1;
CREATE TABLE t1 (a int, b int, v varchar(60000)) checksum=1 engine=maria;
insert into t1 values (1,1,"aaa"),(1,2,null);
checksum table t1;
Table	Checksum
test.t1	1112804611
lock table t1 write;
insert into t1 values (1,3,repeat('c',30000)),(4,4,repeat('a',30000));
update t1 set v="row5" where b=4;
delete from t1 where b=3;
select a, b, length(v) from t1;
a	b	length(v)
1	1	3
1	2	NULL
4	4	4
drop table t1;
CREATE TABLE t1 (
auto int(5) unsigned NOT NULL auto_increment,
string char(10) default "hello",
tiny tinyint(4) DEFAULT '0' NOT NULL ,
short smallint(6) DEFAULT '1' NOT NULL ,
medium mediumint(8) DEFAULT '0' NOT NULL,
long_int int(11) DEFAULT '0' NOT NULL,
longlong bigint(13) DEFAULT '0' NOT NULL,
real_float float(13,1) DEFAULT 0.0 NOT NULL,
real_double double(16,4),
utiny tinyint(3) unsigned DEFAULT '0' NOT NULL,
ushort smallint(5) unsigned zerofill DEFAULT '00000' NOT NULL,
umedium mediumint(8) unsigned DEFAULT '0' NOT NULL,
ulong int(11) unsigned DEFAULT '0' NOT NULL,
ulonglong bigint(13) unsigned DEFAULT '0' NOT NULL,
time_stamp timestamp,
date_field date,	
time_field time,	
date_time datetime,
blob_col blob,
tinyblob_col tinyblob,
mediumblob_col mediumblob  not null default '',
longblob_col longblob  not null default '',
options enum('one','two','tree') not null ,
flags set('one','two','tree') not null default '',
PRIMARY KEY (auto),
KEY (utiny),
KEY (tiny),
KEY (short),
KEY any_name (medium),
KEY (longlong),
KEY (real_float),
KEY (ushort),
KEY (umedium),
KEY (ulong),
KEY (ulonglong,ulong),
KEY (options,flags)
) engine=maria;
insert into t1 values (10,1,1,1,1,1,1,1,1,1,1,1,1,1,NULL,0,0,0,1,1,1,1,'one','one');
create table t2 (primary key (auto)) engine=maria row_format=page select auto+1 as auto,1 as t1, 'a' as t2, repeat('a',256) as t3, binary repeat('b',256) as t4, repeat('a',4096) as t5, binary repeat('b',4096) as t6, '' as t7, binary '' as t8 from t1;
check table t1,t2;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
test.t2	check	status	OK
select t1,t2,length(t3),length(t4),length(t5),length(t6),t7,t8 from t2;
t1	t2	length(t3)	length(t4)	length(t5)	length(t6)	t7	t8
1	a	256	256	4096	4096		
drop table t2;
create table t2 (primary key (auto)) engine=maria row_format=dynamic select auto+1 as auto,1 as t1, 'a' as t2, repeat('a',256) as t3, binary repeat('b',256) as t4, repeat('a',4096) as t5, binary repeat('b',4096) as t6, '' as t7, binary '' as t8 from t1;
check table t2;
Table	Op	Msg_type	Msg_text
test.t2	check	status	OK
drop table t1,t2;
CREATE TABLE t1 (seq int, s1 int, s2 blob);
insert into t1 values (1, 1, MD5(1));
update t1 set s1=2 where seq=1;
check table t1 extended;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
drop table t1;
show variables like 'maria%';
Variable_name	Value
maria_block_size	8192
maria_checkpoint_interval	30
maria_force_start_after_recovery_failures	0
maria_log_file_size	4294959104
maria_log_purge_type	immediate
maria_max_sort_file_size	9223372036853727232
maria_page_checksum	OFF
maria_pagecache_age_threshold	300
maria_pagecache_buffer_size	8384512
maria_pagecache_division_limit	100
maria_recover	OFF
maria_repair_threads	1
maria_sort_buffer_size	8388608
maria_stats_method	nulls_unequal
maria_sync_log_dir	NEWFILE
show status like 'maria%';
Variable_name	Value
Maria_pagecache_blocks_not_flushed	#
Maria_pagecache_blocks_unused	#
Maria_pagecache_blocks_used	#
Maria_pagecache_read_requests	#
Maria_pagecache_reads	#
Maria_pagecache_write_requests	#
Maria_pagecache_writes	#
create table t1 (b char(0));
insert into t1 values(NULL),("");
select length(b) from t1;
length(b)
NULL
0
alter table t1 add column c char(0), add key (c);
insert into t1 values("",""),("",NULL);
select length(b),length(c) from t1;
length(b)	length(c)
NULL	NULL
0	NULL
0	0
0	NULL
select length(b),length(c) from t1 where c is null;
length(b)	length(c)
NULL	NULL
0	NULL
0	NULL
select length(b),length(c) from t1 where c is not null;
length(b)	length(c)
0	0
select length(b),length(c) from t1 order by c;
length(b)	length(c)
NULL	NULL
0	NULL
0	NULL
0	0
alter table t1 add column d char(0) not null, add key (d);
ERROR 42000: The used storage engine can't index column 'd'
drop table t1;
CREATE TABLE t1 (a bit(3));
insert into t1 values (NULL),(0),(1),(2),(3),(4),(5),(6),(7);
select hex(a) from t1;
hex(a)
NULL
0
1
2
3
4
5
6
7
drop table t1;
create table t1(a bit not null);
insert into t1 values(0),(1);
select a+0 from t1;
a+0
0
1
drop table t1;
CREATE TABLE t1 (col1 int, s1 char(16) DEFAULT NULL, s2 char(16) DEFAULT NULL, KEY (s1,s2));
insert into t1 (col1) values(0);
drop table t1;
set global maria_page_checksum=1;
create table t1 (a int);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
drop table t1;
set global maria_log_file_size=4294967296;
Warnings:
Warning	1292	Truncated incorrect log_file_size value: '4294967296'
create table t1 (a int not null);
lock tables t1 write;
insert into t1 values (1),(2);
delete from t1;
unlock tables;
select * from t1;
a
insert into t1 values (1),(2);
delete from t1;
select * from t1;
a
drop table t1;
create table t1 (c int);
insert into t1 values(1),(2);
create table t2 select * from t1;
create table t3 select * from t1, t2;
ERROR 42S21: Duplicate column name 'c'
create table t3 select t1.c AS c1, t2.c AS c2,1 as "const" from t1, t2;
drop table t1, t2, t3;
create table t1 (t datetime) engine=maria;
insert into t1 values (101),(691231),(700101),(991231),(10000101),(99991231),(101000000),(691231000000),(700101000000),(991231235959),(10000101000000),(99991231235959),(20030100000000),(20030000000000);
select * from t1;
t
2000-01-01 00:00:00
2069-12-31 00:00:00
1970-01-01 00:00:00
1999-12-31 00:00:00
1000-01-01 00:00:00
9999-12-31 00:00:00
2000-01-01 00:00:00
2069-12-31 00:00:00
1970-01-01 00:00:00
1999-12-31 23:59:59
1000-01-01 00:00:00
9999-12-31 23:59:59
2003-01-00 00:00:00
2003-00-00 00:00:00
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
delete from t1 where t > 0;
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
drop table t1;
SET SQL_MODE='NO_AUTO_VALUE_ON_ZERO';
CREATE TABLE t1 (id int(11) PRIMARY KEY auto_increment,f1 varchar(10) NOT NULL UNIQUE);
INSERT IGNORE INTO t1 (f1) VALUES ("test1");
INSERT IGNORE INTO t1 (f1) VALUES ("test1");
INSERT IGNORE INTO t1 (f1) VALUES ("test2");
SELECT * FROM t1;
id	f1
1	test1
2	test2
drop table t1;
SET SQL_MODE = 'TRADITIONAL';
create table t1 (n int not null primary key auto_increment, c char(1), unique(c));
insert into t1 values(100, "a");
insert into t1 values(300, "b");
insert into t1 values(50, "a");
ERROR 23000: Duplicate entry 'a' for key 'c'
insert into t1 values(null, "c");
select * from t1;
n	c
100	a
300	b
301	c
update t1 set n=400,c='a' where n=301;
ERROR 23000: Duplicate entry 'a' for key 'c'
insert into t1 values(null, "d");
select * from t1;
n	c
100	a
300	b
301	c
302	d
drop table t1;
create table t1 (n int not null primary key auto_increment, c char(1), unique(c)) transactional=0 row_format=dynamic;
insert into t1 values(100, "a");
insert into t1 values(300, "b");
insert into t1 values(50, "a");
ERROR 23000: Duplicate entry 'a' for key 'c'
insert into t1 values(null, "c");
select * from t1;
n	c
100	a
300	b
301	c
update t1 set n=400,c='a' where n=301;
ERROR 23000: Duplicate entry 'a' for key 'c'
insert into t1 values(null, "d");
select * from t1;
n	c
100	a
300	b
301	c
302	d
drop table t1;
create table t1 (n int not null, c char(1)) engine=maria;
alter table t1 engine=myisam;
alter table t1 engine=maria;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `n` int(11) NOT NULL,
  `c` char(1) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
drop table t1;
create table t1 (n int not null, c char(1)) engine=maria transactional=1;
alter table t1 engine=myisam;
Warnings:
Error	1478	Table storage engine 'MyISAM' does not support the create option 'TRANSACTIONAL=1'
alter table t1 engine=maria;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `n` int(11) NOT NULL,
  `c` char(1) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1 TRANSACTIONAL=1
drop table t1;
create table t1 (n int not null, c char(1)) engine=myisam transactional=1;
Warnings:
Error	1478	Table storage engine 'MyISAM' does not support the create option 'TRANSACTIONAL=1'
alter table t1 engine=maria;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `n` int(11) NOT NULL,
  `c` char(1) DEFAULT NULL
) ENGINE=MARIA DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1 TRANSACTIONAL=1
drop table t1;
create table t1 (a int, key(a)) transactional=0;
insert into t1 values (0),(1),(2),(3),(4);
insert into t1 select NULL from t1;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
drop table t1;
create temporary table t1 (a int, key(a)) transactional=1;
create temporary table t2 (a int, key(a)) transactional=1;
insert into t1 values (0),(1),(2),(3),(4);
insert into t2 select * from t1;
insert into t1 select NULL from t2;
select count(*) from t1;
count(*)
10
select count(*) from t1 where a >= 4;
count(*)
1
drop table t1, t2;
create table t1 (i int auto_increment not null primary key) transactional=0;
check table t1 extended;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
delete from t1 where i = 10;
check table t1 extended;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
drop table t1;
create table t1 (i int auto_increment not null primary key);
check table t1 extended;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
delete from t1 where i = 10;
check table t1 extended;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
drop table t1;
CREATE TABLE t1(a VARCHAR(20), FULLTEXT(a)) transactional=0;
INSERT INTO t1 VALUES('Offside'),('City Of God');
SELECT a FROM t1 WHERE MATCH a AGAINST ('+city of*' IN BOOLEAN MODE);
a
City Of God
SELECT a FROM t1 WHERE MATCH a AGAINST ('+city (of)*' IN BOOLEAN MODE);
a
City Of God
DROP TABLE t1;
create table t1(a int) engine=maria transactional=1;
select CREATE_OPTIONS from information_schema.TABLES where
TABLE_SCHEMA='test' and TABLE_NAME='t1';
CREATE_OPTIONS
transactional=1
drop table t1;
create table t1 (a int, unique(a)) engine=maria transactional=1;
insert into t1 values(1);
insert into t1 values(2),(2);
ERROR 23000: Duplicate entry '2' for key 'a'
create table t2 (a int, unique(a)) engine=maria transactional=0 row_format=dynamic;
insert into t2 values(1);
insert into t2 values(2),(2);
ERROR 23000: Duplicate entry '2' for key 'a'
insert into t1 values(3);
insert into t2 values(3);
drop table t1, t2;