2005-11-07 07:23:43 +01:00
drop table if exists t1,t2,t3,t4,t5;
2004-08-31 13:35:04 +02:00
drop database if exists mysqltest;
2001-09-28 07:05:54 +02:00
create table t1 (b char(0));
insert into t1 values (""),(null);
select * from t1;
2000-12-28 02:56:38 +01:00
b
NULL
2001-09-28 07:05:54 +02:00
drop table if exists t1;
create table t1 (b char(0) not null);
create table if not exists t1 (b char(0) not null);
2005-09-12 14:09:19 +02:00
Warnings:
Note 1050 Table 't1' already exists
2001-09-28 07:05:54 +02:00
insert into t1 values (""),(null);
2003-04-30 09:07:37 +02:00
Warnings:
2007-05-30 14:04:04 +02:00
Warning 1048 Column 'b' cannot be null
2001-09-28 07:05:54 +02:00
select * from t1;
2000-12-28 02:56:38 +01:00
b
2003-10-16 07:34:17 +02:00
drop table t1;
2003-12-10 05:31:42 +01:00
create table t1 (a int not null auto_increment,primary key (a)) engine=heap;
2003-01-06 00:48:59 +01:00
drop table t1;
2003-12-10 05:31:42 +01:00
create table t2 engine=heap select * from t1;
2003-06-04 17:28:51 +02:00
ERROR 42S02: Table 'test.t1' doesn't exist
2001-09-28 07:05:54 +02:00
create table t2 select auto+1 from t1;
2003-06-04 17:28:51 +02:00
ERROR 42S02: Table 'test.t1' doesn't exist
2001-09-28 07:05:54 +02:00
drop table if exists t1,t2;
2003-01-06 00:48:59 +01:00
Warnings:
Note 1051 Unknown table 't1'
Note 1051 Unknown table 't2'
2001-09-28 07:05:54 +02:00
create table t1 (b char(0) not null, index(b));
2003-06-04 17:28:51 +02:00
ERROR 42000: The used storage engine can't index column 'b'
2003-12-10 05:31:42 +01:00
create table t1 (a int not null,b text) engine=heap;
2003-06-04 17:28:51 +02:00
ERROR 42000: The used table type doesn't support BLOB/TEXT columns
2001-09-28 07:05:54 +02:00
drop table if exists t1;
2003-10-16 07:34:17 +02:00
Warnings:
Note 1051 Unknown table 't1'
2003-12-10 05:31:42 +01:00
create table t1 (ordid int(8) not null auto_increment, ord varchar(50) not null, primary key (ord,ordid)) engine=heap;
2004-06-15 22:38:36 +02:00
ERROR 42000: Incorrect table definition; there can be only one auto column and it must be defined as a key
2001-09-28 07:05:54 +02:00
create table not_existing_database.test (a int);
2005-07-22 05:08:54 +02:00
ERROR 42000: Unknown database 'not_existing_database'
2001-09-28 07:05:54 +02:00
create table `a/a` (a int);
2003-06-04 17:28:51 +02:00
ERROR 42000: Incorrect table name 'a/a'
2001-09-28 07:05:54 +02:00
create table `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa` (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa int);
2003-06-04 17:28:51 +02:00
ERROR 42000: Incorrect table name 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
2001-09-28 07:05:54 +02:00
create table a (`aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa` int);
2003-06-04 17:28:51 +02:00
ERROR 42000: Identifier name 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' is too long
2005-04-01 14:04:50 +02:00
create table t1 (a datetime default now());
2004-04-02 08:12:53 +02:00
ERROR 42000: Invalid default value for 'a'
2005-04-01 14:04:50 +02:00
create table t1 (a datetime on update now());
2004-06-16 05:18:20 +02:00
ERROR HY000: Invalid ON UPDATE clause for 'a' column
2005-04-01 14:04:50 +02:00
create table t1 (a int default 100 auto_increment);
2004-04-02 08:12:53 +02:00
ERROR 42000: Invalid default value for 'a'
2005-04-01 14:04:50 +02:00
create table t1 (a tinyint default 1000);
ERROR 42000: Invalid default value for 'a'
create table t1 (a varchar(5) default 'abcdef');
ERROR 42000: Invalid default value for 'a'
create table t1 (a varchar(5) default 'abcde');
insert into t1 values();
select * from t1;
a
abcde
alter table t1 alter column a set default 'abcdef';
ERROR 42000: Invalid default value for 'a'
drop table t1;
2001-09-28 07:05:54 +02:00
create table 1ea10 (1a20 int,1e int);
insert into 1ea10 values(1,1);
select 1ea10.1a20,1e+ 1e+10 from 1ea10;
2000-12-28 02:56:38 +01:00
1a20 1e+ 1e+10
1 10000000001
2001-09-28 07:05:54 +02:00
drop table 1ea10;
create table t1 (t1.index int);
drop table t1;
2004-08-31 13:35:04 +02:00
drop database if exists mysqltest;
2003-01-06 00:48:59 +01:00
Warnings:
2004-08-31 13:35:04 +02:00
Note 1008 Can't drop database 'mysqltest'; database doesn't exist
create database mysqltest;
create table mysqltest.$test1 (a$1 int, $b int, c$ int);
insert into mysqltest.$test1 values (1,2,3);
select a$1, $b, c$ from mysqltest.$test1;
2000-12-28 02:56:38 +01:00
a$1 $b c$
1 2 3
2004-08-31 13:35:04 +02:00
create table mysqltest.test2$ (a int);
drop table mysqltest.test2$;
drop database mysqltest;
2003-03-16 15:28:30 +01:00
create table `` (a int);
2003-06-04 17:28:51 +02:00
ERROR 42000: Incorrect table name ''
2003-03-16 15:28:30 +01:00
drop table if exists ``;
2003-06-04 17:28:51 +02:00
ERROR 42000: Incorrect table name ''
2003-03-16 15:28:30 +01:00
create table t1 (`` int);
2003-06-04 17:28:51 +02:00
ERROR 42000: Incorrect column name ''
2003-10-16 17:33:44 +02:00
create table t1 (i int, index `` (i));
2003-10-16 22:15:45 +02:00
ERROR 42000: Incorrect index name ''
2001-09-28 07:05:54 +02:00
create table t1 (a int auto_increment not null primary key, B CHAR(20));
insert into t1 (b) values ("hello"),("my"),("world");
create table t2 (key (b)) select * from t1;
explain select * from t2 where b="world";
2002-09-26 22:08:22 +02:00
id select_type table type possible_keys key key_len ref rows Extra
2002-11-21 14:56:48 +01:00
1 SIMPLE t2 ref B B 21 const 1 Using where
2001-09-28 07:05:54 +02:00
select * from t2 where b="world";
2001-06-12 10:59:14 +02:00
a B
3 world
2001-09-28 07:05:54 +02:00
drop table t1,t2;
2001-11-18 13:13:09 +01:00
create table t1(x varchar(50) );
create table t2 select x from t1 where 1=2;
describe t1;
2003-06-02 14:19:06 +02:00
Field Type Null Key Default Extra
x varchar(50) YES NULL
2001-11-18 13:13:09 +01:00
describe t2;
2003-06-02 14:19:06 +02:00
Field Type Null Key Default Extra
2003-10-03 23:54:32 +02:00
x varchar(50) YES NULL
2001-12-29 14:15:51 +01:00
drop table t2;
create table t2 select now() as a , curtime() as b, curdate() as c , 1+1 as d , 1.0 + 1 as e , 33333333333333333 + 3 as f;
describe t2;
2003-06-02 14:19:06 +02:00
Field Type Null Key Default Extra
2004-12-10 10:07:11 +01:00
a datetime NO 0000-00-00 00:00:00
b time NO 00:00:00
c date NO 0000-00-00
2005-05-05 22:01:39 +02:00
d int(3) NO 0
e decimal(3,1) NO 0.0
f bigint(19) NO 0
2001-12-29 19:56:50 +01:00
drop table t2;
2002-01-02 23:46:43 +01:00
create table t2 select CAST("2001-12-29" AS DATE) as d, CAST("20:45:11" AS TIME) as t, CAST("2001-12-29 20:45:11" AS DATETIME) as dt;
2001-12-29 19:56:50 +01:00
describe t2;
2003-06-02 14:19:06 +02:00
Field Type Null Key Default Extra
2004-03-09 21:03:01 +01:00
d date YES NULL
t time YES NULL
dt datetime YES NULL
2001-11-18 13:13:09 +01:00
drop table t1,t2;
2002-07-20 16:36:56 +02:00
create table t1 (a tinyint);
create table t2 (a int) select * from t1;
describe t1;
2003-06-02 14:19:06 +02:00
Field Type Null Key Default Extra
a tinyint(4) YES NULL
2002-07-20 16:36:56 +02:00
describe t2;
2003-06-02 14:19:06 +02:00
Field Type Null Key Default Extra
a int(11) YES NULL
2002-07-20 16:36:56 +02:00
drop table if exists t2;
create table t2 (a int, a float) select * from t1;
2003-06-04 17:28:51 +02:00
ERROR 42S21: Duplicate column name 'a'
2002-07-20 16:36:56 +02:00
drop table if exists t2;
2003-01-06 00:48:59 +01:00
Warnings:
Note 1051 Unknown table 't2'
2002-07-20 16:36:56 +02:00
create table t2 (a int) select a as b, a+1 as b from t1;
2003-06-04 17:28:51 +02:00
ERROR 42S21: Duplicate column name 'b'
2002-07-20 16:36:56 +02:00
drop table if exists t2;
2003-01-06 00:48:59 +01:00
Warnings:
Note 1051 Unknown table 't2'
2002-07-20 16:36:56 +02:00
create table t2 (b int) select a as b, a+1 as b from t1;
2003-06-04 17:28:51 +02:00
ERROR 42S21: Duplicate column name 'b'
2002-07-20 16:36:56 +02:00
drop table if exists t1,t2;
2003-01-06 00:48:59 +01:00
Warnings:
Note 1051 Unknown table 't2'
2003-10-08 17:53:31 +02:00
CREATE TABLE t1 (a int not null);
INSERT INTO t1 values (1),(2),(1);
CREATE TABLE t2 (primary key(a)) SELECT * FROM t1;
ERROR 23000: Duplicate entry '1' for key 1
SELECT * from t2;
ERROR 42S02: Table 'test.t2' doesn't exist
DROP TABLE t1;
DROP TABLE IF EXISTS t2;
Warnings:
Note 1051 Unknown table 't2'
2002-03-13 00:02:45 +01:00
create table t1 (a int not null, b int, primary key(a), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b));
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
2004-10-02 21:20:08 +02:00
`a` int(11) NOT NULL,
2002-03-13 00:02:45 +01:00
`b` int(11) default NULL,
PRIMARY KEY (`a`),
2004-05-11 23:29:52 +02:00
KEY `b` (`b`),
KEY `b_2` (`b`),
KEY `b_3` (`b`),
KEY `b_4` (`b`),
KEY `b_5` (`b`),
KEY `b_6` (`b`),
KEY `b_7` (`b`),
KEY `b_8` (`b`),
KEY `b_9` (`b`),
KEY `b_10` (`b`),
KEY `b_11` (`b`),
KEY `b_12` (`b`),
KEY `b_13` (`b`),
KEY `b_14` (`b`),
KEY `b_15` (`b`),
KEY `b_16` (`b`),
KEY `b_17` (`b`),
KEY `b_18` (`b`),
KEY `b_19` (`b`),
KEY `b_20` (`b`),
KEY `b_21` (`b`),
KEY `b_22` (`b`),
KEY `b_23` (`b`),
KEY `b_24` (`b`),
KEY `b_25` (`b`),
KEY `b_26` (`b`),
KEY `b_27` (`b`),
KEY `b_28` (`b`),
KEY `b_29` (`b`),
KEY `b_30` (`b`),
KEY `b_31` (`b`)
2003-12-10 05:31:42 +01:00
) ENGINE=MyISAM DEFAULT CHARSET=latin1
2002-03-13 00:02:45 +01:00
drop table t1;
2002-08-07 21:35:47 +02:00
create table t1 select if(1,'1','0'), month("2002-08-02");
drop table t1;
2002-09-04 14:24:27 +02:00
create table t1 select if('2002'='2002','Y','N');
select * from t1;
if('2002'='2002','Y','N')
Y
drop table if exists t1;
2003-12-17 23:52:03 +01:00
SET SESSION storage_engine="heap";
SELECT @@storage_engine;
@@storage_engine
2005-04-23 00:05:05 +02:00
MEMORY
2003-03-19 20:43:41 +01:00
CREATE TABLE t1 (a int not null);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
2004-10-02 21:20:08 +02:00
`a` int(11) NOT NULL
2005-01-14 02:38:13 +01:00
) ENGINE=MEMORY DEFAULT CHARSET=latin1
2003-03-19 20:43:41 +01:00
drop table t1;
2003-12-17 23:52:03 +01:00
SET SESSION storage_engine="gemini";
2003-12-02 21:23:13 +01:00
ERROR 42000: Unknown table engine 'gemini'
2003-12-17 23:52:03 +01:00
SELECT @@storage_engine;
@@storage_engine
2005-04-23 00:05:05 +02:00
MEMORY
2003-03-19 20:43:41 +01:00
CREATE TABLE t1 (a int not null);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
2004-10-02 21:20:08 +02:00
`a` int(11) NOT NULL
2005-01-14 02:38:13 +01:00
) ENGINE=MEMORY DEFAULT CHARSET=latin1
2003-12-17 23:52:03 +01:00
SET SESSION storage_engine=default;
2003-03-19 20:43:41 +01:00
drop table t1;
2003-05-13 19:16:30 +02:00
create table t1 ( k1 varchar(2), k2 int, primary key(k1,k2));
insert into t1 values ("a", 1), ("b", 2);
insert into t1 values ("c", NULL);
2003-06-04 17:28:51 +02:00
ERROR 23000: Column 'k2' cannot be null
2003-05-13 19:16:30 +02:00
insert into t1 values (NULL, 3);
2003-06-04 17:28:51 +02:00
ERROR 23000: Column 'k1' cannot be null
2003-05-13 19:16:30 +02:00
insert into t1 values (NULL, NULL);
2003-06-04 17:28:51 +02:00
ERROR 23000: Column 'k1' cannot be null
2003-05-13 19:16:30 +02:00
drop table t1;
2003-10-16 07:16:39 +02:00
create table t1 select x'4132';
drop table t1;
2003-10-06 20:11:39 +02:00
create table t1 select 1,2,3;
create table if not exists t1 select 1,2;
2005-09-12 14:09:19 +02:00
Warnings:
Note 1050 Table 't1' already exists
2003-10-06 20:11:39 +02:00
create table if not exists t1 select 1,2,3,4;
2003-10-16 07:16:39 +02:00
ERROR 21S01: Column count doesn't match value count at row 1
2003-10-06 20:11:39 +02:00
create table if not exists t1 select 1;
2005-09-12 14:09:19 +02:00
Warnings:
Note 1050 Table 't1' already exists
2003-10-06 20:11:39 +02:00
select * from t1;
1 2 3
1 2 3
0 1 2
0 0 1
drop table t1;
2003-10-15 20:41:13 +02:00
create table t1 (a int not null, b int, primary key (a));
insert into t1 values (1,1);
create table if not exists t1 select 2;
2005-01-15 02:09:35 +01:00
Warnings:
2005-09-12 14:09:19 +02:00
Note 1050 Table 't1' already exists
2005-09-13 00:44:50 +02:00
Warning 1364 Field 'a' doesn't have a default value
2003-10-15 20:41:13 +02:00
select * from t1;
a b
1 1
0 2
create table if not exists t1 select 3 as 'a',4 as 'b';
2005-01-15 02:09:35 +01:00
Warnings:
2005-09-12 14:09:19 +02:00
Note 1050 Table 't1' already exists
2003-10-15 20:41:13 +02:00
create table if not exists t1 select 3 as 'a',3 as 'b';
2003-10-16 07:16:39 +02:00
ERROR 23000: Duplicate entry '3' for key 1
2003-10-15 20:41:13 +02:00
select * from t1;
a b
1 1
0 2
3 4
drop table t1;
2004-03-05 19:13:33 +01:00
create table `t1 `(a int);
2004-03-17 23:09:13 +01:00
ERROR 42000: Incorrect table name 't1 '
2004-03-05 19:13:33 +01:00
create database `db1 `;
2004-03-17 23:09:13 +01:00
ERROR 42000: Incorrect database name 'db1 '
2004-03-05 19:13:33 +01:00
create table t1(`a ` int);
2004-03-17 23:09:13 +01:00
ERROR 42000: Incorrect column name 'a '
2004-04-28 17:14:53 +02:00
create table t1 (a int,);
2004-06-16 05:18:20 +02:00
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
2004-04-28 17:14:53 +02:00
create table t1 (a int,,b int);
2004-06-16 05:18:20 +02:00
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 'b int)' at line 1
2004-04-28 17:14:53 +02:00
create table t1 (,b int);
2004-06-16 05:18:20 +02:00
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 'b int)' at line 1
2002-11-18 17:28:51 +01:00
create table t1 (a int, key(a));
create table t2 (b int, foreign key(b) references t1(a), key(b));
drop table if exists t1,t2;
2002-12-28 10:38:29 +01:00
create table t1(id int not null, name char(20));
insert into t1 values(10,'mysql'),(20,'monty- the creator');
create table t2(id int not null);
insert into t2 values(10),(20);
create table t3 like t1;
show create table t3;
Table Create Table
t3 CREATE TABLE `t3` (
2004-10-02 21:20:08 +02:00
`id` int(11) NOT NULL,
2003-01-14 13:28:36 +01:00
`name` char(20) default NULL
2003-12-10 05:31:42 +01:00
) ENGINE=MyISAM DEFAULT CHARSET=latin1
2002-12-28 10:38:29 +01:00
select * from t3;
id name
create table if not exists t3 like t1;
Warnings:
2004-09-09 05:59:26 +02:00
Note 1050 Table 't3' already exists
2002-12-28 10:38:29 +01:00
select @@warning_count;
@@warning_count
1
create temporary table t3 like t2;
show create table t3;
Table Create Table
t3 CREATE TEMPORARY TABLE `t3` (
2004-10-02 21:20:08 +02:00
`id` int(11) NOT NULL
2003-12-10 05:31:42 +01:00
) ENGINE=MyISAM DEFAULT CHARSET=latin1
2002-12-28 10:38:29 +01:00
select * from t3;
id
drop table t3;
show create table t3;
Table Create Table
t3 CREATE TABLE `t3` (
2004-10-02 21:20:08 +02:00
`id` int(11) NOT NULL,
2003-01-14 13:28:36 +01:00
`name` char(20) default NULL
2003-12-10 05:31:42 +01:00
) ENGINE=MyISAM DEFAULT CHARSET=latin1
2002-12-28 10:38:29 +01:00
select * from t3;
id name
2002-12-31 00:10:10 +01:00
drop table t2, t3;
2004-08-31 13:35:04 +02:00
create database mysqltest;
create table mysqltest.t3 like t1;
create temporary table t3 like mysqltest.t3;
2002-12-28 10:38:29 +01:00
show create table t3;
Table Create Table
t3 CREATE TEMPORARY TABLE `t3` (
2004-10-02 21:20:08 +02:00
`id` int(11) NOT NULL,
2003-01-14 13:28:36 +01:00
`name` char(20) default NULL
2003-12-10 05:31:42 +01:00
) ENGINE=MyISAM DEFAULT CHARSET=latin1
2002-12-31 00:10:10 +01:00
create table t2 like t3;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
2004-10-02 21:20:08 +02:00
`id` int(11) NOT NULL,
2003-01-14 13:28:36 +01:00
`name` char(20) default NULL
2003-12-10 05:31:42 +01:00
) ENGINE=MyISAM DEFAULT CHARSET=latin1
2002-12-31 00:10:10 +01:00
select * from t2;
id name
2002-12-28 10:38:29 +01:00
create table t3 like t1;
2004-08-31 13:35:04 +02:00
create table t3 like mysqltest.t3;
2003-06-04 17:28:51 +02:00
ERROR 42S01: Table 't3' already exists
2002-12-28 10:38:29 +01:00
create table non_existing_database.t1 like t1;
2005-07-22 05:08:54 +02:00
ERROR 42000: Unknown database 'non_existing_database'
2002-12-28 10:38:29 +01:00
create table t3 like non_existing_table;
2003-06-04 17:28:51 +02:00
ERROR 42S02: Unknown table 'non_existing_table'
2002-12-28 10:38:29 +01:00
create temporary table t3 like t1;
2003-06-04 17:28:51 +02:00
ERROR 42S01: Table 't3' already exists
2002-12-31 00:10:10 +01:00
create table t3 like `a/a`;
2003-06-04 17:28:51 +02:00
ERROR 42000: Incorrect table name 'a/a'
2002-12-28 10:38:29 +01:00
drop table t1, t2, t3;
drop table t3;
2004-08-31 13:35:04 +02:00
drop database mysqltest;
2003-12-17 23:52:03 +01:00
SET SESSION storage_engine="heap";
SELECT @@storage_engine;
@@storage_engine
2005-04-23 00:05:05 +02:00
MEMORY
2003-03-19 20:43:41 +01:00
CREATE TABLE t1 (a int not null);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
2004-10-02 21:20:08 +02:00
`a` int(11) NOT NULL
2005-01-14 02:38:13 +01:00
) ENGINE=MEMORY DEFAULT CHARSET=latin1
2003-03-19 20:43:41 +01:00
drop table t1;
2003-12-17 23:52:03 +01:00
SET SESSION storage_engine="gemini";
2003-12-02 21:23:13 +01:00
ERROR 42000: Unknown table engine 'gemini'
2003-12-17 23:52:03 +01:00
SELECT @@storage_engine;
@@storage_engine
2005-04-23 00:05:05 +02:00
MEMORY
2003-03-19 20:43:41 +01:00
CREATE TABLE t1 (a int not null);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
2004-10-02 21:20:08 +02:00
`a` int(11) NOT NULL
2005-01-14 02:38:13 +01:00
) ENGINE=MEMORY DEFAULT CHARSET=latin1
2003-12-17 23:52:03 +01:00
SET SESSION storage_engine=default;
2003-03-19 20:43:41 +01:00
drop table t1;
2003-08-28 01:11:54 +02:00
create table t1(a int,b int,c int unsigned,d date,e char,f datetime,g time,h blob);
insert into t1(a)values(1);
insert into t1(a,b,c,d,e,f,g,h)
values(2,-2,2,'1825-12-14','a','2003-1-1 3:2:1','4:3:2','binary data');
select * from t1;
a b c d e f g h
1 NULL NULL NULL NULL NULL NULL NULL
2 -2 2 1825-12-14 a 2003-01-01 03:02:01 04:03:02 binary data
select a,
ifnull(b,cast(-7 as signed)) as b,
ifnull(c,cast(7 as unsigned)) as c,
ifnull(d,cast('2000-01-01' as date)) as d,
ifnull(e,cast('b' as char)) as e,
ifnull(f,cast('2000-01-01' as datetime)) as f,
ifnull(g,cast('5:4:3' as time)) as g,
ifnull(h,cast('yet another binary data' as binary)) as h,
addtime(cast('1:0:0' as time),cast('1:0:0' as time)) as dd
from t1;
a b c d e f g h dd
1 -7 7 2000-01-01 b 2000-01-01 00:00:00 05:04:03 yet another binary data 02:00:00
2 -2 2 1825-12-14 a 2003-01-01 03:02:01 04:03:02 binary data 02:00:00
create table t2
select
a,
ifnull(b,cast(-7 as signed)) as b,
ifnull(c,cast(7 as unsigned)) as c,
ifnull(d,cast('2000-01-01' as date)) as d,
ifnull(e,cast('b' as char)) as e,
ifnull(f,cast('2000-01-01' as datetime)) as f,
ifnull(g,cast('5:4:3' as time)) as g,
ifnull(h,cast('yet another binary data' as binary)) as h,
addtime(cast('1:0:0' as time),cast('1:0:0' as time)) as dd
from t1;
explain t2;
Field Type Null Key Default Extra
a int(11) YES NULL
2004-12-10 10:07:11 +01:00
b bigint(11) NO 0
2005-05-07 17:25:59 +02:00
c bigint(11) NO 0
2004-03-09 21:03:01 +01:00
d date YES NULL
2004-12-10 10:07:11 +01:00
e varchar(1) NO
2004-03-09 21:03:01 +01:00
f datetime YES NULL
g time YES NULL
2005-06-08 17:35:37 +02:00
h longblob NO
2004-03-09 21:03:01 +01:00
dd time YES NULL
2003-08-28 01:11:54 +02:00
select * from t2;
a b c d e f g h dd
1 -7 7 2000-01-01 b 2000-01-01 00:00:00 05:04:03 yet another binary data 02:00:00
2 -2 2 1825-12-14 a 2003-01-01 03:02:01 04:03:02 binary data 02:00:00
drop table t1, t2;
2003-12-15 16:58:15 +01:00
create table t1 (a tinyint, b smallint, c mediumint, d int, e bigint, f float(3,2), g double(4,3), h decimal(5,4), i year, j date, k timestamp, l datetime, m enum('a','b'), n set('a','b'), o char(10));
create table t2 select ifnull(a,a), ifnull(b,b), ifnull(c,c), ifnull(d,d), ifnull(e,e), ifnull(f,f), ifnull(g,g), ifnull(h,h), ifnull(i,i), ifnull(j,j), ifnull(k,k), ifnull(l,l), ifnull(m,m), ifnull(n,n), ifnull(o,o) from t1;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`ifnull(a,a)` tinyint(4) default NULL,
`ifnull(b,b)` smallint(6) default NULL,
2005-05-06 17:11:01 +02:00
`ifnull(c,c)` mediumint(8) default NULL,
2003-12-15 16:58:15 +01:00
`ifnull(d,d)` int(11) default NULL,
`ifnull(e,e)` bigint(20) default NULL,
Bug #24791: Union with AVG-groups generates wrong results
The problem in this bug is when we create temporary tables. When
temporary tables are created for unions, there is some
inferrence being carried out regarding the type of the column.
Whenever this column type is inferred to be REAL (i.e. FLOAT or
DOUBLE), MySQL will always try to maintain exact precision, and
if that is not possible (there are hardware limits, since FLOAT
and DOUBLE are stored as approximate values) will switch to
using approximate values. The problem here is that at this point
the information about number of significant digits is not
available. Furthermore, the number of significant digits should
be increased for the AVG function, however, this was not properly
handled. There are 4 parts to the problem:
#1: DOUBLE and FLOAT fields don't display their proper display
lengths in max_display_length(). This is hard-coded as 53 for
DOUBLE and 24 for FLOAT. Now changed to instead return the
field_length.
#2: Type holders for temporary tables do not preserve the
max_length of the Item's from which they are created, and is
instead reverted to the 53 and 24 from above. This causes
*all* fields to get non-fixed significant digits.
#3: AVG function does not update max_length (display length)
when updating number of decimals.
#4: The function that switches to non-fixed number of
significant digits should use DBL_DIG + 2 or FLT_DIG + 2 as
cut-off values (Since fixed precision does not use the 'e'
notation)
Of these points, #1 is the controversial one, but this
change is preferred and has been cleared with Monty. The
function causes quite a few unit tests to blow up and they had
to b changed, but each one is annotated and motivated. We
frequently see the magical 53 and 24 give way to more relevant
numbers.
mysql-test/r/create.result:
bug#24791
changed test result
With the changes made for FLOAT and DOUBLE, the original display
lengths are now preserved.
mysql-test/r/temp_table.result:
bug#24791
changed test resullt
Test case added
mysql-test/r/type_float.result:
bug#24791
changed test result
delta 1: field was originally declared as DOUBLE with no display
length, so the hardware maximum is chosen rather than 53.
delta 2: fields exceed the maximum precision and thus switch to
non-fixed significant digits
delta 3: Same as above, number of decmals and significant digits
was not specified when t3 was created.
mysql-test/t/temp_table.test:
bug#24791
Test case
sql/field.h:
bug#24791
The method max_display_length is reimplemented as
uint32 max_display_length() { return field_length; }
in Field_double and Field_float. Since all subclasses of
Field_real now have the same implementation of this method, the
implementation has been moved up the hierarchy to Field_real.
sql/item.cc:
bug#24791
We switch to a non-fixed number of significant digits
(by setting decimals=NOT_FIXED_DECIMAL) if the calculated
display length is greater than the display length of a value
with the maximum precision. These values differ for double and
float, obviously.
sql/item_sum.cc:
bug#24791
We must increase the display length accordinly whenever we
change number of decimal places.
2007-03-22 10:56:47 +01:00
`ifnull(f,f)` float(3,2) default NULL,
`ifnull(g,g)` double(4,3) default NULL,
2005-05-05 22:01:39 +02:00
`ifnull(h,h)` decimal(5,4) default NULL,
2003-12-15 16:58:15 +01:00
`ifnull(i,i)` year(4) default NULL,
`ifnull(j,j)` date default NULL,
2006-07-22 00:08:00 +02:00
`ifnull(k,k)` timestamp NOT NULL default '0000-00-00 00:00:00',
2003-12-15 16:58:15 +01:00
`ifnull(l,l)` datetime default NULL,
2004-12-07 14:47:00 +01:00
`ifnull(m,m)` varchar(1) default NULL,
`ifnull(n,n)` varchar(3) default NULL,
`ifnull(o,o)` varchar(10) default NULL
2003-12-15 18:10:46 +01:00
) ENGINE=MyISAM DEFAULT CHARSET=latin1
2003-12-15 16:58:15 +01:00
drop table t1,t2;
2003-10-31 21:24:55 +01:00
create table t1(str varchar(10) default 'def',strnull varchar(10),intg int default '10',rel double default '3.14');
insert into t1 values ('','',0,0.0);
describe t1;
Field Type Null Key Default Extra
str varchar(10) YES def
strnull varchar(10) YES NULL
intg int(11) YES 10
rel double YES 3.14
create table t2 select default(str) as str, default(strnull) as strnull, default(intg) as intg, default(rel) as rel from t1;
describe t2;
Field Type Null Key Default Extra
str varchar(10) YES NULL
strnull varchar(10) YES NULL
intg int(11) YES NULL
rel double YES NULL
drop table t1, t2;
2003-12-11 01:28:25 +01:00
create table t1(name varchar(10), age smallint default -1);
describe t1;
Field Type Null Key Default Extra
name varchar(10) YES NULL
age smallint(6) YES -1
create table t2(name varchar(10), age smallint default - 1);
describe t2;
Field Type Null Key Default Extra
name varchar(10) YES NULL
age smallint(6) YES -1
drop table t1, t2;
2004-03-13 20:13:31 +01:00
create table t1(cenum enum('a'), cset set('b'));
create table t2(cenum enum('a','a'), cset set('b','b'));
Warnings:
2004-03-15 11:53:27 +01:00
Note 1291 Column 'cenum' has duplicated value 'a' in ENUM
Note 1291 Column 'cset' has duplicated value 'b' in SET
2004-03-13 20:13:31 +01:00
create table t3(cenum enum('a','A','a','c','c'), cset set('b','B','b','d','d'));
Warnings:
2004-03-15 11:53:27 +01:00
Note 1291 Column 'cenum' has duplicated value 'a' in ENUM
Note 1291 Column 'cenum' has duplicated value 'A' in ENUM
Note 1291 Column 'cenum' has duplicated value 'c' in ENUM
Note 1291 Column 'cset' has duplicated value 'b' in SET
Note 1291 Column 'cset' has duplicated value 'B' in SET
Note 1291 Column 'cset' has duplicated value 'd' in SET
2004-03-13 20:13:31 +01:00
drop table t1, t2, t3;
2004-08-31 13:35:04 +02:00
create database mysqltest;
use mysqltest;
2003-09-08 14:30:53 +02:00
select database();
database()
2004-08-31 13:35:04 +02:00
mysqltest
drop database mysqltest;
2003-09-08 14:30:53 +02:00
select database();
database()
NULL
2007-02-26 11:49:24 +01:00
create user mysqltest_1;
2005-06-03 21:08:45 +02:00
select database(), user();
database() user()
NULL mysqltest_1@localhost
2007-02-26 11:49:24 +01:00
drop user mysqltest_1;
2004-03-13 22:31:30 +01:00
use test;
create table t1 (a int, index `primary` (a));
ERROR 42000: Incorrect index name 'primary'
create table t1 (a int, index `PRIMARY` (a));
ERROR 42000: Incorrect index name 'PRIMARY'
create table t1 (`primary` int, index(`primary`));
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`primary` int(11) default NULL,
KEY `primary_2` (`primary`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
create table t2 (`PRIMARY` int, index(`PRIMARY`));
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`PRIMARY` int(11) default NULL,
KEY `PRIMARY_2` (`PRIMARY`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
create table t3 (a int);
alter table t3 add index `primary` (a);
ERROR 42000: Incorrect index name 'primary'
alter table t3 add index `PRIMARY` (a);
ERROR 42000: Incorrect index name 'PRIMARY'
create table t4 (`primary` int);
alter table t4 add index(`primary`);
show create table t4;
Table Create Table
t4 CREATE TABLE `t4` (
`primary` int(11) default NULL,
KEY `primary_2` (`primary`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
create table t5 (`PRIMARY` int);
alter table t5 add index(`PRIMARY`);
show create table t5;
Table Create Table
t5 CREATE TABLE `t5` (
`PRIMARY` int(11) default NULL,
KEY `PRIMARY_2` (`PRIMARY`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1, t2, t3, t4, t5;
2004-03-23 14:57:14 +01:00
CREATE TABLE t1(id varchar(10) NOT NULL PRIMARY KEY, dsc longtext);
INSERT INTO t1 VALUES ('5000000001', NULL),('5000000003', 'Test'),('5000000004', NULL);
CREATE TABLE t2(id varchar(15) NOT NULL, proc varchar(100) NOT NULL, runID varchar(16) NOT NULL, start datetime NOT NULL, PRIMARY KEY (id,proc,runID,start));
INSERT INTO t2 VALUES ('5000000001', 'proc01', '20031029090650', '2003-10-29 13:38:40'),('5000000001', 'proc02', '20031029090650', '2003-10-29 13:38:51'),('5000000001', 'proc03', '20031029090650', '2003-10-29 13:38:11'),('5000000002', 'proc09', '20031024013310', '2003-10-24 01:33:11'),('5000000002', 'proc09', '20031024153537', '2003-10-24 15:36:04'),('5000000004', 'proc01', '20031024013641', '2003-10-24 01:37:29'),('5000000004', 'proc02', '20031024013641', '2003-10-24 01:37:39');
CREATE TABLE t3 SELECT t1.dsc,COUNT(DISTINCT t2.id) AS countOfRuns FROM t1 LEFT JOIN t2 ON (t1.id=t2.id) GROUP BY t1.id;
SELECT * FROM t3;
dsc countOfRuns
NULL 1
Test 0
NULL 1
drop table t1, t2, t3;
2005-05-07 14:51:29 +02:00
create table t1 (b bool not null default false);
create table t2 (b bool not null default true);
insert into t1 values ();
insert into t2 values ();
select * from t1;
b
0
select * from t2;
b
1
drop table t1,t2;
2005-05-31 11:08:14 +02:00
create table t1 (a int);
create table t1 select * from t1;
2005-05-31 20:45:41 +02:00
ERROR HY000: You can't specify target table 't1' for update in FROM clause
2005-05-31 11:08:14 +02:00
create table t2 union = (t1) select * from t1;
2005-05-31 20:45:41 +02:00
ERROR HY000: You can't specify target table 't1' for update in FROM clause
2005-05-31 11:08:14 +02:00
flush tables with read lock;
unlock tables;
drop table t1;
2005-05-31 19:06:54 +02:00
create table t1(column.name int);
ERROR 42000: Incorrect table name 'column'
create table t1(test.column.name int);
ERROR 42000: Incorrect table name 'column'
create table t1(xyz.t1.name int);
ERROR 42000: Incorrect database name 'xyz'
create table t1(t1.name int);
create table t2(test.t2.name int);
drop table t1,t2;
2005-08-30 14:19:53 +02:00
CREATE TABLE t1 (f1 VARCHAR(255) CHARACTER SET utf8);
2005-08-31 20:06:34 +02:00
CREATE TABLE t2 AS SELECT LEFT(f1,171) AS f2 FROM t1 UNION SELECT LEFT(f1,171) AS f2 FROM t1;
2005-08-30 14:19:53 +02:00
DESC t2;
Field Type Null Key Default Extra
2005-08-31 20:06:34 +02:00
f2 varchar(171) YES NULL
2005-08-30 14:19:53 +02:00
DROP TABLE t1,t2;
2005-09-01 00:13:02 +02:00
CREATE TABLE t12913 (f1 ENUM ('a','b')) AS SELECT 'a' AS f1;
SELECT * FROM t12913;
f1
a
DROP TABLE t12913;
2005-06-09 17:06:15 +02:00
create database mysqltest;
use mysqltest;
drop database mysqltest;
create table test.t1 like x;
A fix and a test case for
Bug#19022 "Memory bug when switching db during trigger execution"
Bug#17199 "Problem when view calls function from another database."
Bug#18444 "Fully qualified stored function names don't work correctly in
SELECT statements"
Documentation note: this patch introduces a change in behaviour of prepared
statements.
This patch adds a few new invariants with regard to how THD::db should
be used. These invariants should be preserved in future:
- one should never refer to THD::db by pointer and always make a deep copy
(strmake, strdup)
- one should never compare two databases by pointer, but use strncmp or
my_strncasecmp
- TABLE_LIST object table->db should be always initialized in the parser or
by creator of the object.
For prepared statements it means that if the current database is changed
after a statement is prepared, the database that was current at prepare
remains active. This also means that you can not prepare a statement that
implicitly refers to the current database if the latter is not set.
This is not documented, and therefore needs documentation. This is NOT a
change in behavior for almost all SQL statements except:
- ALTER TABLE t1 RENAME t2
- OPTIMIZE TABLE t1
- ANALYZE TABLE t1
- TRUNCATE TABLE t1 --
until this patch t1 or t2 could be evaluated at the first execution of
prepared statement.
CURRENT_DATABASE() still works OK and is evaluated at every execution
of prepared statement.
Note, that in stored routines this is not an issue as the default
database is the database of the stored procedure and "use" statement
is prohibited in stored routines.
This patch makes obsolete the use of check_db_used (it was never used in the
old code too) and all other places that check for table->db and assign it
from THD::db if it's NULL, except the parser.
How this patch was created: THD::{db,db_length} were replaced with a
LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
manually checked and:
- if the place uses thd->db by pointer, it was fixed to make a deep copy
- if a place compared two db pointers, it was fixed to compare them by value
(via strcmp/my_strcasecmp, whatever was approproate)
Then this intermediate patch was used to write a smaller patch that does the
same thing but without a rename.
TODO in 5.1:
- remove check_db_used
- deploy THD::set_db in mysql_change_db
See also comments to individual files.
mysql-test/r/create.result:
Modify the result file: a database can never be NULL.
mysql-test/r/ps.result:
Update test results (Bug#17199 et al)
mysql-test/r/sp.result:
Update test results (Bug#17199 et al)
mysql-test/t/create.test:
Update the id of the returned error.
mysql-test/t/ps.test:
Add test coverage for prepared statements and current database. In scope of
work on Bug#17199 "Problem when view calls function from another database."
mysql-test/t/sp.test:
Add a test case for Bug#17199 "Problem when view calls function from another
database." and Bug#18444 "Fully qualified stored function names don't work
correctly in SELECT statements". Test a complementary problem.
sql/item_strfunc.cc:
Touch the code that reads thd->db (cleanup).
sql/log_event.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/slave.h:
Remove a declaration for a method that is used only in one module.
sql/sp.cc:
Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
this function and ensure that it has no bugs.
sql/sp.h:
Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
sql/sp_head.cc:
- drop sp_name_current_db_new - a creator of sp_name class that was used
when sp_name was created for an identifier without an explicitly initialized
database. Now we pass thd->db to constructor of sp_name right in the
parser.
- rewrite sp_head::init_strings: name->m_db is always set now
- use the new variant of sp_use_new_db
- we don't need to update thd->db with SP MEM_ROOT pointer anymore when
parsing a stored procedure, as noone will refer to it (yes!)
sql/sp_head.h:
- remove unneded methods and members
sql/sql_class.h:
- introduce 3 THD methods to work with THD::db:
.set_db to assign the current database
.reset_db to reset the current database (temporarily) or set it to NULL
.opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
sql/sql_db.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_insert.cc:
- replace checks with asserts: table_list->db must be always set in the parser.
sql/sql_lex.h:
- add a comment
sql/sql_parse.cc:
- implement the invariant described in the changeset comment.
- remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
now db_load_routine uses its own LEX object and doesn't damage the main
LEX.
- add DBUG_ASSERT(0) to unused "check_db_used"
sql/sql_table.cc:
- replace a check with an assert (table_ident->db)
sql/sql_trigger.cc:
While we are at it, replace direct access to thd->db with a method.
Should simplify future conversion of THD::db to LEX_STRING.
sql/sql_udf.cc:
- use thd->set_db instead of direct modification of to thd->db
sql/sql_view.cc:
- replace a check with an assert (view->db)
sql/sql_yacc.yy:
- make sure that we always copy table->db or name->db or ident->db or
select_lex->db from thd->db if the former is not set. If thd->db
is not set but is accessed, return an error.
sql/tztime.cc:
- be nice, never copy thd->db by pointer.
2006-06-26 22:47:52 +02:00
ERROR 3D000: No database selected
2005-06-09 17:06:15 +02:00
drop table if exists test.t1;
2005-08-03 07:29:48 +02:00
create database mysqltest;
2005-09-13 00:44:50 +02:00
use mysqltest;
create view v1 as select 'foo' from dual;
create table t1 like v1;
ERROR HY000: 'mysqltest.v1' is not BASE TABLE
drop view v1;
drop database mysqltest;
create database mysqltest;
2005-09-12 14:09:19 +02:00
create database if not exists mysqltest character set latin2;
Warnings:
Note 1007 Can't create database 'mysqltest'; database exists
show create database mysqltest;
Database Create Database
mysqltest CREATE DATABASE `mysqltest` /*!40100 DEFAULT CHARACTER SET latin1 */
drop database mysqltest;
use test;
create table t1 (a int);
create table if not exists t1 (a int);
Warnings:
Note 1050 Table 't1' already exists
drop table t1;
BUG#14139: When handling "CREATE TABLE(field_X type_spec,...) SELECT smth AS field_X, ...."
avoid multiplying length of field_X by charset->mbmaxlen twice when calculating space
required for field_X in the new table.
mysql-test/r/create.result:
Testcase for BUG#14139
mysql-test/t/create.test:
Testcase for BUG#14139
sql/field.cc:
BUG#14139: Make create_length_to_internal_length() save length-in-characters in
create_field::chars_length.
sql/field.h:
BUG#14139: Add create_length::chars_length where we save length-in-characters, added comments.
sql/sql_table.cc:
BUG#14139: When handling "CREATE TABLE(field_X type_spec,...) SELECT smth AS field_X, ...."
we get two instances of create_field: (1) is occurence of field_X in create list, and (2) is
in select list. If we figure they both refer to the same field, we "join" them according to
some rule that is not explicitly specified anywhere.
When we do this "join", create_field::length already contains length-in-bytes for both, so
when we transfer field length (in characters) from (1) to (2), use length-in-characters that
we have saved in create_length::chars_length.
2005-10-25 22:56:17 +02:00
create table t1 (
a varchar(112) charset utf8 collate utf8_bin not null,
primary key (a)
) select 'test' as a ;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
2005-10-31 07:22:33 +01:00
`a` varchar(112) character set utf8 collate utf8_bin NOT NULL,
BUG#14139: When handling "CREATE TABLE(field_X type_spec,...) SELECT smth AS field_X, ...."
avoid multiplying length of field_X by charset->mbmaxlen twice when calculating space
required for field_X in the new table.
mysql-test/r/create.result:
Testcase for BUG#14139
mysql-test/t/create.test:
Testcase for BUG#14139
sql/field.cc:
BUG#14139: Make create_length_to_internal_length() save length-in-characters in
create_field::chars_length.
sql/field.h:
BUG#14139: Add create_length::chars_length where we save length-in-characters, added comments.
sql/sql_table.cc:
BUG#14139: When handling "CREATE TABLE(field_X type_spec,...) SELECT smth AS field_X, ...."
we get two instances of create_field: (1) is occurence of field_X in create list, and (2) is
in select list. If we figure they both refer to the same field, we "join" them according to
some rule that is not explicitly specified anywhere.
When we do this "join", create_field::length already contains length-in-bytes for both, so
when we transfer field length (in characters) from (1) to (2), use length-in-characters that
we have saved in create_length::chars_length.
2005-10-25 22:56:17 +02:00
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
2005-11-07 07:23:43 +01:00
CREATE TABLE t2 (
a int(11) default NULL
);
insert into t2 values(111);
create table t1 (
a varchar(12) charset utf8 collate utf8_bin not null,
b int not null, primary key (a)
) select a, 1 as b from t2 ;
2006-01-05 23:47:49 +01:00
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varchar(12) character set utf8 collate utf8_bin NOT NULL,
`b` int(11) NOT NULL,
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (
a varchar(12) charset utf8 collate utf8_bin not null,
b int not null, primary key (a)
) select a, 1 as c from t2 ;
2005-11-09 12:47:58 +01:00
Warnings:
Warning 1364 Field 'b' doesn't have a default value
2005-11-07 07:23:43 +01:00
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
2005-11-09 12:47:58 +01:00
`b` int(11) NOT NULL,
2006-01-05 23:47:49 +01:00
`a` varchar(12) character set utf8 collate utf8_bin NOT NULL,
2006-07-14 05:48:26 +02:00
`c` int(1) NOT NULL default '0',
2006-01-05 23:47:49 +01:00
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (
a varchar(12) charset utf8 collate utf8_bin not null,
b int null, primary key (a)
) select a, 1 as c from t2 ;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`b` int(11) default NULL,
`a` varchar(12) character set utf8 collate utf8_bin NOT NULL,
2006-07-14 05:48:26 +02:00
`c` int(1) NOT NULL default '0',
2005-11-07 07:23:43 +01:00
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (
a varchar(12) charset utf8 collate utf8_bin not null,
b int not null, primary key (a)
) select 'a' as a , 1 as b from t2 ;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
2005-11-09 12:47:58 +01:00
`a` varchar(12) character set utf8 collate utf8_bin NOT NULL,
`b` int(11) NOT NULL,
2005-11-07 07:23:43 +01:00
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (
a varchar(12) charset utf8 collate utf8_bin,
b int not null, primary key (a)
) select 'a' as a , 1 as b from t2 ;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varchar(12) character set utf8 collate utf8_bin NOT NULL default '',
2005-11-09 12:47:58 +01:00
`b` int(11) NOT NULL,
2005-11-07 07:23:43 +01:00
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1, t2;
create table t1 (
a1 int not null,
a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int
);
insert into t1 values (1,1,1, 1,1,1, 1,1,1);
create table t2 (
a1 varchar(12) charset utf8 collate utf8_bin not null,
a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int,
primary key (a1)
) select a1,a2,a3,a4,a5,a6,a7,a8,a9 from t1 ;
drop table t2;
create table t2 (
a1 varchar(12) charset utf8 collate utf8_bin,
a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int
) select a1,a2,a3,a4,a5,a6,a7,a8,a9 from t1;
drop table t1, t2;
create table t1 (
a1 int, a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int
);
insert into t1 values (1,1,1, 1,1,1, 1,1,1);
create table t2 (
a1 varchar(12) charset utf8 collate utf8_bin not null,
a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int,
primary key (a1)
) select a1,a2,a3,a4,a5,a6,a7,a8,a9 from t1 ;
2005-11-09 07:34:46 +01:00
drop table t2;
create table t2 ( a int default 3, b int default 3)
select a1,a2 from t1;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` int(11) default '3',
`b` int(11) default '3',
`a1` int(11) default NULL,
`a2` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
2005-11-07 07:23:43 +01:00
drop table t1, t2;
2006-03-29 16:52:26 +02:00
create table t1(a set("a,b","c,d") not null);
2006-03-30 06:13:25 +02:00
ERROR 22007: Illegal set 'a,b' value found during parsing
2005-11-24 02:05:59 +01:00
create table t1 (i int) engine=myisam max_rows=100000000000;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 MAX_ROWS=4294967295
alter table t1 max_rows=100;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 MAX_ROWS=100
alter table t1 max_rows=100000000000;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 MAX_ROWS=4294967295
drop table t1;
Fix for:
Bug #20662 "Infinite loop in CREATE TABLE IF NOT EXISTS ... SELECT
with locked tables"
Bug #20903 "Crash when using CREATE TABLE .. SELECT and triggers"
Bug #24738 "CREATE TABLE ... SELECT is not isolated properly"
Bug #24508 "Inconsistent results of CREATE TABLE ... SELECT when
temporary table exists"
Deadlock occured when one tried to execute CREATE TABLE IF NOT
EXISTS ... SELECT statement under LOCK TABLES which held
read lock on target table.
Attempt to execute the same statement for already existing
target table with triggers caused server crashes.
Also concurrent execution of CREATE TABLE ... SELECT statement
and other statements involving target table suffered from
various races (some of which might've led to deadlocks).
Finally, attempt to execute CREATE TABLE ... SELECT in case
when a temporary table with same name was already present
led to the insertion of data into this temporary table and
creation of empty non-temporary table.
All above problems stemmed from the old implementation of CREATE
TABLE ... SELECT in which we created, opened and locked target
table without any special protection in a separate step and not
with the rest of tables used by this statement.
This underminded deadlock-avoidance approach used in server
and created window for races. It also excluded target table
from prelocking causing problems with trigger execution.
The patch solves these problems by implementing new approach to
handling of CREATE TABLE ... SELECT for base tables.
We try to open and lock table to be created at the same time as
the rest of tables used by this statement. If such table does not
exist at this moment we create and place in the table cache special
placeholder for it which prevents its creation or any other usage
by other threads.
We still use old approach for creation of temporary tables.
Also note that we decided to postpone introduction of some tests
for concurrent behaviour of CREATE TABLE ... SELECT till 5.1.
The main reason for this is absence in 5.0 ability to set @@debug
variable at runtime, which can be circumvented only by using several
test files with individual .opt files. Since the latter is likely
to slowdown test-suite unnecessary we chose not to push this tests
into 5.0, but run them manually for this version and later push
their optimized version into 5.1
mysql-test/r/create.result:
Extended test coverage for CREATE TABLE ... SELECT. In particular added
tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
when temporary table exists" and bug #20662 "Infinite loop in CREATE
TABLE IF NOT EXISTS ... SELECT with locked tables".
mysql-test/r/trigger.result:
Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
and triggers"
mysql-test/t/create.test:
Extended test coverage for CREATE TABLE ... SELECT. In particular added
tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
when temporary table exists" and bug #20662 "Infinite loop in CREATE
TABLE IF NOT EXISTS ... SELECT with locked tables".
mysql-test/t/trigger.test:
Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
and triggers"
sql/lock.cc:
Now for creation of name-lock placeholder in lock_table_name() we use
auxiliary function table_cache_insert_placeholder().
sql/mysql_priv.h:
Made build_table_path() function available outside of sql_table.cc file.
reopen_name_locked_table() now has 3rd argument which controls linking
in of table being opened into THD::open_tables (this is useful in
cases when placeholder used for name-locking is already linked into
this list).
Added declaration of auxiliary function table_cache_insert_placeholder()
which is used for creation of table placeholders for name-locking.
Added declaration of table_cache_has_open_placeholder() function which
can be used for checking if table cache contains an open placeholder for
the table and if this placeholder was created by another thread.
(This function is needed only in 5.0 where we use it in various versions
of CREATE TABLE in order to protect it from concurrent CREATE TABLE
... SELECT operations for the table. Starting from 5.1 we use different
approach so it is going to be removed there).
Made close_old_data_files() static within sql_base.cc file.
Added auxiliary drop_open_table() routine.
Moved declaration of refresh_version to table.h header to make it
accessible from inline methods of TABLE class.
MYSQL_OPEN_IGNORE_LOCKED_TABLES flag is no longer used. Instead
MYSQL_OPEN_TEMPORARY_ONLY option was added.
sql/sql_base.cc:
Added support for the new approach to the handling of CREATE TABLE
... SELECT for base tables.
Now we try to open and lock table to be created at the same time as
the rest of tables used by this statement. If such table does not
exist at this moment we create and place in the table cache special
placeholder for it which prevents its creation or any other usage
by other threads.
Note significant distinctions of this placeholder from the placeholder
used for normal name-lock: 1) It is treated like open table by other
name-locks so it does not allow name-lock taking operations like DROP
TABLE or RENAME TABLE to proceed. 2) it is linked into THD::open_tables
list and automatically removed during close_thread_tables() call.
open_tables():
Implemented logic described above. To do this added
auxiliary check_if_table_exists() function.
Removed support for MYSQL_OPEN_IGNORE_LOCKED_TABLES option
which is no longer used.
Added MYSQL_OPEN_TEMPORARY_ONLY which is used to restrict
search for temporary tables only.
close_cached_tables()/close_thread_table()/reopen_tables()/
close_old_data_files()/table_is_used()/remove_table_from_cache():
Added support for open placeholders (note that we also use them
when we need to re-open tables during flush).
Added auxiliary drop_open_table() routine.
reopen_name_locked_table():
Now has 3rd argument which controls linking in of table being
opened into THD::open_tables (this is useful in cases when
placeholder used for name-locking is already linked into
this list).
Added auxiliary table_cache_insert_placeholder() routine which
simplifies creation of placeholders used for name-locking.
Added table_cache_has_open_placeholder() function which can be
used for checking if table cache contains an open placeholder for
the table and if this placeholder was created by another thread.
(This function is needed only in 5.0 where we use it in various versions
of CREATE TABLE in order to protect it from concurrent CREATE TABLE
... SELECT operations for the table. Starting from 5.1 we use different
approach so it is going to be removed there).
sql/sql_handler.cc:
Adjusted mysql_ha_mark_tables_for_reopen() routine to properly
handle placeholders which now can be linked into open tables
list.
sql/sql_insert.cc:
Introduced new approach to handling of base tables in CREATE TABLE
... SELECT statement.
Now we try to open and lock table to be created at the same time as
the rest of tables used by this statement. If such table does not
exist at this moment we create and place in the table cache special
placeholder for it which prevents its creation or any other usage
by other threads. By doing this we avoid races which existed with
previous approach in which we created, opened and locked target in
separate step without any special protection.
This also allows properly calculate prelocking set in cases when
target table already exists and has some on insert triggers.
Note that we don't employ the same approach for temporary tables
(this is okay as such tables are unaffected by other threads).
Changed create_table_from_items() and select_create methods to
implement this approach.
sql/sql_parse.cc:
The new approach to handling of CREATE TABLE ... SELECT for
base tables assumes that all tables (including table to be
created) are opened and (or) locked at the same time.
So in cases when we create base table we have to pass to
open_and_lock_tables() table list which includes target table.
sql/sql_prepare.cc:
The new approach to handling of CREATE TABLE ... SELECT for
base tables assumes that all tables (including table to be
created) are opened and (or) locked at the same time.
So in cases when we create base table we have to pass to
open_and_lock_tables() table list which includes target table.
sql/sql_table.cc:
Now mysql_create_table_internal(), mysql_create_like_table() and
mysql_alter_table() not only check that destination table doesn't
exist on disk but also check that there is no create placeholder
in table cache for it (i.e. there is no CREATE TABLE ... SELECT
operation in progress for it). Note that starting from 5.1 we
use different approach in order to to protect CREATE TABLE ... SELECT
from concurrent CREATE TABLE (ALTER TABLE ... RENAME) operations,
the latter simply take name-locks on table before its creation
(on target table name before renaming).
Also made build_table_path() available from other files and
asjusted calls to reopen_name_locked_table(), which now takes
extra argument, which controls linking of open table into
THD::open_tables list.
sql/sql_trigger.cc:
reopen_name_locked_tables() now has one more argument which controls
linking of opened table into the THD::open_tables list.
sql/sql_yacc.yy:
The new approach to handling of CREATE TABLE ... SELECT statement
for base tables assumes that all tables including table to be
created are open and (or) locked at the same time. Therefore
we need to set correct lock for target table.
sql/table.h:
Moved declaration of refresh_version variable from mysql_priv.h
to make it accessible from inline methods of TABLE class.
Renamed TABLE::locked_by_flush member to open_placeholder since
now it is also used for taking exclusive name-lock and not only
by flush.
Introduced TABLE::is_name_opened() helper method which can be used
to distinguish TABLE instances corresponding to open tables or
placeholders for them from closed instances (e.g. due to their old
version). Also introduced TABLE::needs_reopen_or_name_lock() helper
which allows to check if TABLE instance corresponds to outdated
version of table or to name-lock placeholder.
Introduced TABLE_LIST::create member which marks elements of
table list corresponds to the table to be created.
Adjusted TABLE_LIST::placeholder() method to take into account
name-lock placeholders for tables to be created (this, for example,
allows to properly handle such placeholders in lock_tables()).
2007-05-11 18:33:13 +02:00
create table t1 select * from t2;
ERROR 42S02: Table 'test.t2' doesn't exist
create table t1 select * from t1;
ERROR HY000: You can't specify target table 't1' for update in FROM clause
create table t1 select coalesce('a' collate latin1_swedish_ci,'b' collate latin1_bin);
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation 'coalesce'
create table t1 (primary key(a)) select "b" as b;
ERROR 42000: Key column 'a' doesn't exist in table
create table t1 (a int);
create table if not exists t1 select 1 as a, 2 as b;
ERROR 21S01: Column count doesn't match value count at row 1
drop table t1;
create table t1 (primary key (a)) (select 1 as a) union all (select 1 as a);
ERROR 23000: Duplicate entry '1' for key 1
create table t1 (i int);
create table t1 select 1 as i;
ERROR 42S01: Table 't1' already exists
create table if not exists t1 select 1 as i;
Warnings:
Note 1050 Table 't1' already exists
select * from t1;
i
1
create table t1 select coalesce('a' collate latin1_swedish_ci,'b' collate latin1_bin);
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation 'coalesce'
select * from t1;
i
1
alter table t1 add primary key (i);
create table if not exists t1 (select 2 as i) union all (select 2 as i);
ERROR 23000: Duplicate entry '2' for key 1
select * from t1;
i
1
2
drop table t1;
create temporary table t1 (j int);
create table if not exists t1 select 1;
Warnings:
Note 1050 Table 't1' already exists
select * from t1;
j
1
drop temporary table t1;
select * from t1;
ERROR 42S02: Table 'test.t1' doesn't exist
drop table t1;
ERROR 42S02: Unknown table 't1'
create table t1 (i int);
insert into t1 values (1), (2);
lock tables t1 read;
create table t2 select * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
create table if not exists t2 select * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
unlock tables;
create table t2 (j int);
lock tables t1 read;
create table t2 select * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
create table if not exists t2 select * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
unlock tables;
lock table t1 read, t2 read;
create table t2 select * from t1;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
create table if not exists t2 select * from t1;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
unlock tables;
lock table t1 read, t2 write;
create table t2 select * from t1;
ERROR 42S01: Table 't2' already exists
create table if not exists t2 select * from t1;
Warnings:
Note 1050 Table 't2' already exists
select * from t1;
i
1
2
unlock tables;
drop table t2;
lock tables t1 read;
create temporary table t2 select * from t1;
create temporary table if not exists t2 select * from t1;
Warnings:
Note 1050 Table 't2' already exists
select * from t2;
i
1
2
1
2
unlock tables;
drop table t1, t2;
2006-09-08 12:10:14 +02:00
create table t1 (upgrade int);
drop table t1;
2007-06-27 13:35:49 +02:00
create table t1 (
c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int, c8 int,
c9 int, c10 int, c11 int, c12 int, c13 int, c14 int, c15 int, c16 int,
key a001_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a002_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a003_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a004_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a005_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a006_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a007_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a008_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a009_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a010_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a011_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a012_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a013_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a014_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a015_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a016_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a017_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a018_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a019_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a020_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a021_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a022_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a023_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a024_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a025_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a026_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a027_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a028_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a029_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a030_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a031_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a032_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a033_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a034_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a035_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a036_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a037_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a038_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a039_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a040_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a041_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a042_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a043_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a044_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a045_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a046_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a047_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a048_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a049_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a050_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a051_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a052_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a053_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a054_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a055_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a056_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a057_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a058_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a059_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a060_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a061_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a062_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a063_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
key a064_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16)
);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) default NULL,
`c2` int(11) default NULL,
`c3` int(11) default NULL,
`c4` int(11) default NULL,
`c5` int(11) default NULL,
`c6` int(11) default NULL,
`c7` int(11) default NULL,
`c8` int(11) default NULL,
`c9` int(11) default NULL,
`c10` int(11) default NULL,
`c11` int(11) default NULL,
`c12` int(11) default NULL,
`c13` int(11) default NULL,
`c14` int(11) default NULL,
`c15` int(11) default NULL,
`c16` int(11) default NULL,
KEY `a001_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a002_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a003_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a004_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a005_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a006_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a007_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a008_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a009_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a010_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a011_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a012_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a013_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a014_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a015_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a016_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a017_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a018_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a019_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a020_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a021_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a022_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a023_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a024_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a025_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a026_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a027_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a028_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a029_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a030_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a031_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a032_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a033_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a034_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a035_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a036_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a037_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a038_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a039_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a040_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a041_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a042_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a043_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a044_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a045_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a046_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a047_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a048_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a049_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a050_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a051_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a052_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a053_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a054_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a055_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a056_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a057_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a058_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a059_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a060_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a061_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a062_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a063_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a064_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
flush tables;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) default NULL,
`c2` int(11) default NULL,
`c3` int(11) default NULL,
`c4` int(11) default NULL,
`c5` int(11) default NULL,
`c6` int(11) default NULL,
`c7` int(11) default NULL,
`c8` int(11) default NULL,
`c9` int(11) default NULL,
`c10` int(11) default NULL,
`c11` int(11) default NULL,
`c12` int(11) default NULL,
`c13` int(11) default NULL,
`c14` int(11) default NULL,
`c15` int(11) default NULL,
`c16` int(11) default NULL,
KEY `a001_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a002_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a003_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a004_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a005_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a006_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a007_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a008_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a009_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a010_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a011_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a012_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a013_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a014_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a015_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a016_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a017_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a018_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a019_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a020_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a021_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a022_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a023_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a024_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a025_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a026_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a027_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a028_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a029_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a030_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a031_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a032_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a033_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a034_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a035_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a036_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a037_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a038_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a039_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a040_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a041_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a042_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a043_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a044_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a045_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a046_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a047_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a048_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a049_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a050_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a051_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a052_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a053_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a054_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a055_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a056_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a057_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a058_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a059_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a060_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a061_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a062_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a063_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a064_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int,
c8 int, c9 int, c10 int, c11 int, c12 int, c13 int, c14 int, c15 int, c16 int);
alter table t1
add key a001_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a002_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a003_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a004_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a005_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a006_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a007_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a008_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a009_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a010_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a011_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a012_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a013_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a014_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a015_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a016_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a017_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a018_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a019_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a020_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a021_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a022_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a023_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a024_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a025_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a026_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a027_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a028_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a029_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a030_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a031_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a032_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a033_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a034_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a035_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a036_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a037_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a038_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a039_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a040_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a041_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a042_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a043_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a044_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a045_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a046_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a047_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a048_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a049_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a050_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a051_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a052_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a053_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a054_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a055_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a056_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a057_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a058_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a059_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a060_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a061_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a062_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a063_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16),
add key a064_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) default NULL,
`c2` int(11) default NULL,
`c3` int(11) default NULL,
`c4` int(11) default NULL,
`c5` int(11) default NULL,
`c6` int(11) default NULL,
`c7` int(11) default NULL,
`c8` int(11) default NULL,
`c9` int(11) default NULL,
`c10` int(11) default NULL,
`c11` int(11) default NULL,
`c12` int(11) default NULL,
`c13` int(11) default NULL,
`c14` int(11) default NULL,
`c15` int(11) default NULL,
`c16` int(11) default NULL,
KEY `a001_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a002_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a003_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a004_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a005_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a006_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a007_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a008_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a009_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a010_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a011_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a012_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a013_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a014_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a015_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a016_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a017_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a018_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a019_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a020_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a021_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a022_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a023_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a024_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a025_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a026_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a027_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a028_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a029_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a030_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a031_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a032_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a033_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a034_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a035_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a036_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a037_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a038_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a039_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a040_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a041_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a042_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a043_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a044_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a045_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a046_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a047_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a048_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a049_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a050_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a051_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a052_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a053_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a054_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a055_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a056_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a057_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a058_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a059_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a060_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a061_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a062_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a063_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a064_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
flush tables;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) default NULL,
`c2` int(11) default NULL,
`c3` int(11) default NULL,
`c4` int(11) default NULL,
`c5` int(11) default NULL,
`c6` int(11) default NULL,
`c7` int(11) default NULL,
`c8` int(11) default NULL,
`c9` int(11) default NULL,
`c10` int(11) default NULL,
`c11` int(11) default NULL,
`c12` int(11) default NULL,
`c13` int(11) default NULL,
`c14` int(11) default NULL,
`c15` int(11) default NULL,
`c16` int(11) default NULL,
KEY `a001_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a002_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a003_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a004_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a005_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a006_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a007_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a008_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a009_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a010_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a011_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a012_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a013_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a014_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a015_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a016_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a017_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a018_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a019_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a020_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a021_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a022_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a023_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a024_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a025_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a026_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a027_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a028_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a029_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a030_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a031_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a032_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a033_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a034_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a035_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a036_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a037_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a038_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a039_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a040_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a041_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a042_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a043_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a044_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a045_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a046_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a047_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a048_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a049_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a050_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a051_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a052_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a053_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a054_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a055_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a056_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a057_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a058_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a059_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a060_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a061_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a062_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a063_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`),
KEY `a064_long_123456789_123456789_123456789_123456789_123456789_1234` (`c1`,`c2`,`c3`,`c4`,`c5`,`c6`,`c7`,`c8`,`c9`,`c10`,`c11`,`c12`,`c13`,`c14`,`c15`,`c16`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
alter table t1 add key
a065_long_123456789_123456789_123456789_123456789_123456789_1234 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16);
ERROR 42000: Too many keys specified; max 64 keys allowed
drop table t1;
create table t1 (c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int,
c8 int, c9 int, c10 int, c11 int, c12 int, c13 int, c14 int, c15 int,
c16 int, c17 int);
alter table t1 add key i1 (
c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12,c13,c14,c15,c16, c17);
ERROR 42000: Too many key parts specified; max 16 parts allowed
alter table t1 add key
a001_long_123456789_123456789_123456789_123456789_123456789_12345 (c1);
ERROR 42000: Identifier name 'a001_long_123456789_123456789_123456789_123456789_123456789_12345' is too long
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11) default NULL,
`c2` int(11) default NULL,
`c3` int(11) default NULL,
`c4` int(11) default NULL,
`c5` int(11) default NULL,
`c6` int(11) default NULL,
`c7` int(11) default NULL,
`c8` int(11) default NULL,
`c9` int(11) default NULL,
`c10` int(11) default NULL,
`c11` int(11) default NULL,
`c12` int(11) default NULL,
`c13` int(11) default NULL,
`c14` int(11) default NULL,
`c15` int(11) default NULL,
`c16` int(11) default NULL,
`c17` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
2007-03-29 12:52:31 +02:00
End of 5.0 tests
