mariadb/mysql-test/t/index_merge_innodb.test

#
# Index merge tests
#
-- source include/have_innodb.inc

--disable_warnings
drop table if exists t1;
--enable_warnings

create table t1
(
  key1 int not null, 
  key2 int not null, 
  
  INDEX i1(key1),
  INDEX i2(key2)
) engine=innodb;

--disable_query_log
let $1=200;
while ($1)
{
  eval insert into t1 values (200-$1, $1);
  dec $1;
}
--enable_query_log

# No primary key
explain select * from t1 where key1 < 5 or key2 > 197;

select * from t1 where key1 < 5 or key2 > 197;

explain select * from t1 where key1 < 3 or key2 > 195;
select * from t1 where key1 < 3 or key2 > 195;

# Primary key as case-sensitive string with \0s.
# also make primary key be longer then max. index length of MyISAM.
alter table t1 add str1 char (255) not null, 
                add zeroval int not null default 0,
                add str2 char (255) not null,
                add str3 char (255) not null;

update t1 set str1='aaa', str2='bbb', str3=concat(key2, '-', key1 div 2, '_' ,if(key1 mod 2 = 0, 'a', 'A'));

alter table t1 add primary key (str1, zeroval, str2, str3);
                
explain select * from t1 where key1 < 5 or key2 > 197;

select * from t1 where key1 < 5 or key2 > 197;

explain select * from t1 where key1 < 3 or key2 > 195;
select * from t1 where key1 < 3 or key2 > 195;

drop table t1;