mariadb/mysql-test/t/auto_increment.test

#
# Test of auto_increment;  The test for BDB tables is in bdb.test
#

drop table if exists t1;
create table t1 (a int not null auto_increment,b int, primary key (a)) type=myisam auto_increment=3;
insert into t1 values (1,1),(NULL,3),(NULL,4);
delete from t1 where a=4;
insert into t1 values (NULL,5),(NULL,6);
select * from t1;
delete from t1 where a=6;
#show table status like "t1";
replace t1 values (3,1);
ALTER TABLE t1 add c int;
replace t1 values (3,3,3);
insert into t1 values (NULL,7,7);
update t1 set a=8,b=b+1,c=c+1 where a=7;
insert into t1 values (NULL,9,9);
select * from t1;
drop table t1;

create table t1 (
  skey tinyint unsigned NOT NULL auto_increment PRIMARY KEY,
  sval char(20)
);
insert into t1 values (NULL, "hello");
insert into t1 values (NULL, "hey");
select * from t1;
select _rowid,t1._rowid,skey,sval from t1;
drop table t1;

#
# Test auto_increment on sub key
#
create table t1 (a char(10) not null, b int not null auto_increment, primary key(a,b));
insert into t1 values ("a",1),("b",2),("a",2),("c",1);
insert into t1 values ("a",NULL),("b",NULL),("c",NULL),("e",NULL);
insert into t1 (a) values ("a"),("b"),("c"),("d");
insert into t1 (a) values ('k'),('d');
insert into t1 (a) values ("a");
insert into t1 values ("d",last_insert_id());
select * from t1;
drop table t1;

create table t1 (ordid int(8) not null auto_increment, ord  varchar(50) not null, primary key (ordid), index(ord,ordid)); 
insert into t1 (ordid,ord) values (NULL,'sdj'),(NULL,'sdj');
select * from t1;
drop table t1;

create table t1 (ordid int(8) not null auto_increment, ord  varchar(50) not null, primary key (ord,ordid));
insert into t1 values (NULL,'sdj'),(NULL,'sdj'),(NULL,"abc"),(NULL,'abc'),(NULL,'zzz'),(NULL,'sdj'),(NULL,'abc');
select * from t1;
drop table t1;

create table t1 (sid char(5), id int(2) NOT NULL auto_increment, key(sid,  id));
create table t2 (sid char(20), id int(2));
insert into t2 values ('skr',NULL),('skr',NULL),('test',NULL);
insert into t1 select * from t2;
select * from t1;
drop table t1,t2;

#
# Test of auto_increment columns when they are set to 0
#

create table t1 (a int not null primary key auto_increment);
insert into t1 values (0);
update t1 set a=0;
select * from t1;
check table t1;
drop table t1;

#
# Test negative values (Bug #1366)
#

create table t1 (a int not null auto_increment primary key);
insert into t1 values (NULL);
insert into t1 values (-1);
select last_insert_id();
insert into t1 values (NULL);
select * from t1;
drop table t1;

create table t1 (a int not null auto_increment primary key) /*!41002 type=heap */;
insert into t1 values (NULL);
insert into t1 values (-1);
select last_insert_id();
insert into t1 values (NULL);
select * from t1;
drop table t1;