path: root/mysql-test/main/func_like.test

#
# Test of like
#

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

create table t1 (a varchar(10), key(a));
insert into t1 values ("a"),("abc"),("abcd"),("hello"),("test");
explain extended select * from t1 where a like 'abc%';
explain extended select * from t1 where a like concat('abc','%');
select * from t1 where a like "abc%";
select * from t1 where a like concat("abc","%");
select * from t1 where a like "ABC%";
select * from t1 where a like "test%";
select * from t1 where a like "te_t";

#
# The following will test the Turbo Boyer-Moore code
#
select * from t1 where a like "%a%";
select * from t1 where a like "%abcd%";
select * from t1 where a like "%abc\d%";

drop table t1;

create table t1 (a varchar(10), key(a));

#
# Bug #2231
#
insert into t1 values ('a'), ('a\\b');
select * from t1 where a like 'a\\%' escape '#';
select * from t1 where a like 'a\\%' escape '#' and a like 'a\\\\b';

#
# Bug #4200: Prepared statement parameter as argument to ESCAPE
#
prepare stmt1 from 'select * from t1 where a like \'a\\%\' escape ?';
set @esc='#';
execute stmt1 using @esc;  
deallocate prepare stmt1;

drop table t1;

#
# Bug #2885: like and datetime
#

create table t1 (a datetime);
insert into t1 values ('2004-03-11 12:00:21');
select * from t1 where a like '2004-03-11 12:00:21';
drop table t1;

#
# Test like with non-default character set
#

--disable_service_connection
SET NAMES koi8r;

CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET koi8r);

INSERT INTO t1 VALUES ('����'),('����'),('����'),('����'),('����'),('����');
INSERT INTO t1 VALUES ('����������'),('����������'),('����������'),('����������');
INSERT INTO t1 VALUES ('����������'),('����������'),('����������'),('����������');
INSERT INTO t1 VALUES ('����������'),('����������'),('����������'),('����������');

SELECT * FROM t1 WHERE a LIKE '%����%';
SELECT * FROM t1 WHERE a LIKE '%���%';
SELECT * FROM t1 WHERE a LIKE '����%';

DROP TABLE t1;
--enable_service_connection

# Bug #2547 Strange "like" behaviour in tables with default charset=cp1250
# Test like with non-default character set using TurboBM
#
SET NAMES cp1250;
CREATE TABLE t1 (a varchar(250) NOT NULL) DEFAULT CHARACTER SET=cp1250;
INSERT INTO t1 VALUES
('Techni Tapes Sp. z o.o.'),
('Pojazdy Szynowe PESA Bydgoszcz SA Holding'),
('AKAPESTER 1 P.P.H.U.'),
('Pojazdy Szynowe PESA Bydgoszcz S A Holding'),
('PPUH PESKA-I Maria Struniarska');

select * from t1 where a like '%PESA%';
select * from t1 where a like '%PESA %';
select * from t1 where a like '%PES%';
select * from t1 where a like '%PESKA%';
select * from t1 where a like '%ESKA%';
DROP TABLE t1;

#
# LIKE crashed for binary collations in some cases
#
select _cp866'aaaaaaaaa' like _cp866'%aaaa%' collate cp866_bin;

#
# Check 8bit escape character
#
--disable_service_connection
set names koi8r;
select 'andre%' like 'andre�%' escape '�';

# Check 8bit escape character with charset conversion:
# For "a LIKE b ESCAPE c" expressions,
# escape character is converted into the operation character set,
# which is result of aggregation  of character sets of "a" and "b".
# "c" itself doesn't take part in aggregation, because its collation
# doesn't matter, escape character is always compared binary.
# In the example below, escape character is converted from koi8r into cp1251:
#
select _cp1251'andre%' like convert('andre�%' using cp1251)  escape '�';

--enable_service_connection

--echo End of 4.1 tests


--echo #
--echo # Bug #54575: crash when joining tables with unique set column
--echo #
CREATE TABLE t1(a SET('a') NOT NULL, UNIQUE KEY(a));
CREATE TABLE t2(b INT PRIMARY KEY);
INSERT IGNORE INTO t1 VALUES ();
INSERT INTO t2 VALUES (1), (2), (3);
SELECT 1 FROM t2 JOIN t1 ON 1 LIKE a GROUP BY a;
DROP TABLE t1, t2;

--echo #
--echo # Bug#59149 valgrind warnings with "like .. escape .." function
--echo #
--error ER_WRONG_ARGUMENTS
SELECT '' LIKE '1' ESCAPE COUNT(1);

--echo End of 5.1 tests

--echo #
--echo # Start of 10.0 tests
--echo #

--echo #
--echo # MDEV-5445 Server crashes in Item_func_like::fix_fields on LIKE ExtractValue(..)
--echo #
SELECT 'a' LIKE REPEAT('',0);
SELECT 'a' LIKE EXTRACTVALUE('bar','qux');

--echo #
--echo # End of 10.0 tests
--echo #

--echo #
--echo # Start of 10.1 tests
--echo #

--echo #
--echo # MDEV-8257 Erroneous "Impossible where" when mixing decimal comparison and LIKE
--echo #
CREATE TABLE t1 (a DECIMAL(8,2));
INSERT INTO t1 VALUES (10),(20);
SELECT * FROM t1 WHERE a=10.0;
SELECT * FROM t1 WHERE a LIKE 10.00;
SELECT * FROM t1 WHERE a=10.0 AND a LIKE 10.00;
EXPLAIN EXTENDED SELECT * FROM t1 WHERE a=10.0 AND a LIKE 10.00;
DROP TABLE t1;

--echo #
--echo # MDEV-8599 "WHERE varchar_field LIKE temporal_const" does not use range optimizer
--echo #
CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET latin1, KEY(a)) ENGINE=MyISAM;
INSERT INTO t1 VALUES ('00:00:00');
INSERT INTO t1 VALUES ('00:00:01');
INSERT INTO t1 VALUES ('00:00:02');
INSERT INTO t1 VALUES ('00:00:03');
INSERT INTO t1 VALUES ('00:00:04');
INSERT INTO t1 VALUES ('00:00:05');
INSERT INTO t1 VALUES ('00:00:06');
INSERT INTO t1 VALUES ('00:00:07');
EXPLAIN SELECT * FROM t1 WHERE a LIKE '00:00:00';
EXPLAIN SELECT * FROM t1 WHERE a LIKE TIME'00:00:00';
SELECT * FROM t1 WHERE a LIKE '00:00:00';
SELECT * FROM t1 WHERE a LIKE TIME'00:00:00';
DROP TABLE t1;


--echo #
--echo # End of 10.1 tests
--echo #

#
# Item_func_like::print()
#
create view v1 as select 'foo!' like 'foo!!', 'foo!' like 'foo!!' escape '!';
show create view v1;
select * from v1;
drop view v1;

create table t1 (a varchar(100),
  b int default (a like '%f\\_'),
  c int default (a like '%f\\_' escape ''),
  d int default (a like '%f\\_' escape '\\'));
show create table t1;
insert t1 (a) values ('1 f_'), ('1 f\\_');
set sql_mode=no_backslash_escapes;
insert t1 (a) values ('2 f_'), ('2 f\_');
flush tables;
insert t1 (a) values ('3 f_'), ('3 f\_');
set sql_mode=default;
select * from t1;
drop table t1;

#
# Item_func_like::fix_fields()
#
create table t1 (f int);
insert t1 values (1),(2);
select 1 from (select distinct * from t1) as x where f < (select 1 like 2 escape (3=1));
drop table t1;

#
# Item_func_like::fix_fields, ESCAPE, const_item()
#
#Enable after fix MDEV-31282
--disable_ps2_protocol
create table t1(f1 int);
insert into t1 values(1);
--error ER_WRONG_ARGUMENTS
update (select 1 like 2 escape (1 in (select 1 from t1))) x, t1 as d set d.f1 = 1;
select * from (select 1 like 2 escape (1 in (select 1 from t1))) x;
drop table t1;
--enable_ps2_protocol

#
# Item_func_like::walk
#
create table t1 (f int);
insert t1 values (1),(2);
create view v1 as select * from t1 where (1 like 2 escape (3 in (('h', 'b') in (select 'k', 'k' union select 'g', 'j'))) and f >= 0);
drop view v1;
drop table t1;

--echo #
--echo # MDEV-17359 - Extend expression supported by like (| & << >> || + - * / DIV MOD ^ )
--echo #

SELECT 1 LIKE +1;
SELECT -1 LIKE -1;
SELECT 1 LIKE (1);
SELECT 1 LIKE 1|2, 3 LIKE 1|2;
SELECT 1 LIKE 3&2, 2 LIKE 3&2;
SELECT 1 LIKE 1>>0, 1 LIKE 1>>1 , 64 LIKE 256>>2;
SELECT 1 LIKE 1<<0, 1 LIKE 0<<2, 32 LIKE 1<<5;
SELECT 1 LIKE 1||2, 1 LIKE 0||2;
SELECT 2 LIKE 1+1, 2.0 LIKE 1+1.0, 2 LIKE 1+1.0, 1+1 LIKE 2, 1+1 LIKE 0+2;
SELECT 0 LIKE 1-1, 2.0 LIKE 3-1.0, 2 LIKE 3-1.0, 2-1 LIKE 1, 3-1 LIKE 4-1;
SELECT 1 LIKE 1*1, 2.0 LIKE 2*1.0, 2 LIKE 2*1.0, 2*1 LIKE 2, 2*3 LIKE 6*1;
SELECT 1 LIKE 1/1, 1.0000 LIKE 1/1, 1.0000 LIKE 1/1.000000, 1.000000 LIKE 1.0/1.000000, 1/1 like 1/1;
SELECT 1 LIKE 1 DIV 1, 1 LIKE 1.0 DIV 1.0 ;
SELECT 2 LIKE 10 MOD 8, 1.9 LIKE 10 MOD 8.1, 1.9 LIKE 10 MOD 8.10 ;

SELECT 1 LIKE CAST(1 AS CHAR(10));
SELECT 1 LIKE CASE WHEN 1=1 THEN '1' ELSE '0' END;
SELECT 1 LIKE COALESCE(1+0, 1);

CREATE TABLE t1(c1 INTEGER, c2 INTEGER);
INSERT INTO t1 VALUES(1,1);
INSERT INTO t1 VALUES(1,2);

SELECT c1, c2, c1|c2, 1 LIKE c1|c2 FROM t1 ORDER BY c2;
SELECT c1, c2, c1&c2, 1 LIKE c1&c2 FROM t1 ORDER BY c2;
SELECT c1, c2, c2>>c1, 1 LIKE c2>>c1 FROM t1 ORDER BY c2;
SELECT c1, c2, c2<<c1, 2 LIKE c2<<c1 FROM t1 ORDER BY c2;
SELECT c1, c2, c1||c2, 1 LIKE c1||c2 FROM t1 ORDER BY c2;
SELECT c1, c2, c1+c2, 2 LIKE c1+c2 FROM t1 ORDER BY c2;
SELECT c1, c2, c1-c2, -1 LIKE c1-c2 FROM t1 ORDER BY c2;
SELECT c1, c2, c1*c2, 2 LIKE c1*c2 FROM t1 ORDER BY c2;
SELECT c1, c2, c1/c2, 0.5000 LIKE c1/c2 FROM t1 ORDER BY c2;
SELECT c1, c2, c1 DIV c2, 0 LIKE c1 DIV c2 FROM t1 ORDER BY c2;
SELECT c1, c2, c1 MOD c2, 0 LIKE c1 MOD c2 FROM t1 ORDER BY c2;

CREATE VIEW v1 AS
SELECT 1 LIKE c1|c2, 1 LIKE c1&c2, 1 LIKE c2>>c1, 2 LIKE c2<<c1,
       1 LIKE c1||c2, 2 LIKE c1+c2, -1 LIKE c1-c2, 2 LIKE c1*c2,
       0.5000 LIKE c1/c2, 0 LIKE c1 DIV c2, 0 LIKE c1 MOD c2
  FROM t1 ORDER BY c2;

SELECT * FROM v1;
EXPLAIN EXTENDED SELECT * FROM v1;
DROP VIEW v1;
DROP TABLE t1;