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drop table if exists t1;
set names latin1;
#
# Bug#31081 server crash in regexp function
#
drop table if exists t1;
create table t1 as
select repeat(' ', 64) as s1, repeat(' ',64) as s2
union
select null, null;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`s1` varchar(64) CHARACTER SET latin1 COLLATE latin1_swedish_ci DEFAULT NULL,
`s2` varchar(64) CHARACTER SET latin1 COLLATE latin1_swedish_ci DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
delete from t1;
insert into t1 values('aaa','aaa');
insert into t1 values('aaa|qqq','qqq');
insert into t1 values('gheis','^[^a-dXYZ]+$');
insert into t1 values('aab','^aa?b');
insert into t1 values('Baaan','^Ba*n');
insert into t1 values('aaa','qqq|aaa');
insert into t1 values('qqq','qqq|aaa');
insert into t1 values('bbb','qqq|aaa');
insert into t1 values('bbb','qqq');
insert into t1 values('aaa','aba');
insert into t1 values(null,'abc');
insert into t1 values('def',null);
insert into t1 values(null,null);
insert into t1 values('ghi','ghi[');
select HIGH_PRIORITY s1 regexp s2 from t1;
s1 regexp s2
0
0
0
1
1
1
1
1
1
1
NULL
NULL
NULL
NULL
drop table t1;
create table t1 (xxx char(128));
insert into t1 (xxx) values('this is a test of some long text to see what happens');
select * from t1 where xxx regexp('is a test of some long text to');
xxx
this is a test of some long text to see what happens
explain extended select * from t1 where xxx regexp('is a test of some long text to');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
Note 1003 select 'this is a test of some long text to see what happens' AS `xxx` from dual where 1
select * from t1 where xxx regexp('is a test of some long text to ');
xxx
this is a test of some long text to see what happens
select * from t1 where xxx regexp('is a test of some long text to s');
xxx
this is a test of some long text to see what happens
select * from t1 where xxx regexp('is a test of some long text to se');
xxx
this is a test of some long text to see what happens
drop table t1;
create table t1 (xxx char(128));
insert into t1 (xxx) values('this is some text: to test - out.reg exp (22/45)');
select * from t1 where xxx REGEXP '^this is some text: to test - out\\.reg exp [[(][0-9]+[/\\][0-9]+[])][ ]*$';
xxx
this is some text: to test - out.reg exp (22/45)
drop table t1;
select _latin1 0xFF regexp _latin1 '[[:lower:]]' COLLATE latin1_bin;
_latin1 0xFF regexp _latin1 '[[:lower:]]' COLLATE latin1_bin
1
select _koi8r 0xFF regexp _koi8r '[[:lower:]]' COLLATE koi8r_bin;
_koi8r 0xFF regexp _koi8r '[[:lower:]]' COLLATE koi8r_bin
0
select _latin1 0xFF regexp _latin1 '[[:upper:]]' COLLATE latin1_bin;
_latin1 0xFF regexp _latin1 '[[:upper:]]' COLLATE latin1_bin
0
select _koi8r 0xFF regexp _koi8r '[[:upper:]]' COLLATE koi8r_bin;
_koi8r 0xFF regexp _koi8r '[[:upper:]]' COLLATE koi8r_bin
1
select _latin1 0xF7 regexp _latin1 '[[:alpha:]]';
_latin1 0xF7 regexp _latin1 '[[:alpha:]]'
0
select _koi8r 0xF7 regexp _koi8r '[[:alpha:]]';
_koi8r 0xF7 regexp _koi8r '[[:alpha:]]'
1
select _latin1'a' regexp _latin1'A' collate latin1_general_ci;
_latin1'a' regexp _latin1'A' collate latin1_general_ci
1
select _latin1'a' regexp _latin1'A' collate latin1_bin;
_latin1'a' regexp _latin1'A' collate latin1_bin
0
create table t1 (a varchar(40));
insert into t1 values ('C1'),('C2'),('R1'),('C3'),('R2'),('R3');
prepare stmt1 from 'select a from t1 where a rlike ? order by a';
set @a="^C.*";
execute stmt1 using @a;
a
C1
C2
C3
set @a="^R.*";
execute stmt1 using @a;
a
R1
R2
R3
deallocate prepare stmt1;
drop table t1;
# End of 4.1 tests
SELECT 1 REGEXP NULL;
1 REGEXP NULL
NULL
SELECT '' REGEXP BINARY NULL;
'' REGEXP BINARY NULL
NULL
SELECT NULL REGEXP BINARY NULL;
NULL REGEXP BINARY NULL
NULL
SELECT 'A' REGEXP BINARY NULL;
'A' REGEXP BINARY NULL
NULL
SELECT "ABC" REGEXP BINARY NULL;
"ABC" REGEXP BINARY NULL
NULL
# End of 5.0 tests
CREATE TABLE t1(a INT, b CHAR(4));
INSERT INTO t1 VALUES (1, '6.1'), (1, '7.0'), (1, '8.0');
PREPARE stmt1 FROM "SELECT a FROM t1 WHERE a=1 AND '7.0' REGEXP b LIMIT 1";
EXECUTE stmt1;
a
1
EXECUTE stmt1;
a
1
EXECUTE stmt1;
a
1
EXECUTE stmt1;
a
1
DEALLOCATE PREPARE stmt1;
DROP TABLE t1;
# End of 5.1 tests
SELECT ' ' REGEXP '[[:blank:]]';
' ' REGEXP '[[:blank:]]'
1
SELECT '\t' REGEXP '[[:blank:]]';
'\t' REGEXP '[[:blank:]]'
1
SELECT ' ' REGEXP '[[:space:]]';
' ' REGEXP '[[:space:]]'
1
SELECT '\t' REGEXP '[[:space:]]';
'\t' REGEXP '[[:space:]]'
1
#
# MDEV-13967 Parameter data type control for Item_long_func
#
SELECT REGEXP_INSTR('111222333',2);
REGEXP_INSTR('111222333',2)
4
# End of 10.3 tests
#
# MDEV-33344 REGEXP empty string inconsistent
#
create table t1 (x char(5));
insert t1 values (''), ('x');
select 'foo' regexp x from t1 order by x asc;
'foo' regexp x
1
0
select 'foo' regexp x from t1 order by x desc;
'foo' regexp x
0
1
drop table t1;
#
# MDEV-21076 NOT NULL and UNIQUE constraints cause SUM() to yield an incorrect result
#
CREATE TABLE t0(c0 INT NOT NULL, c1 CHAR UNIQUE);
INSERT INTO t0 VALUES (0, 1);
INSERT INTO t0 VALUES (0, '');
SELECT (c1 RLIKE c1), (c0 IS NULL) FROM t0;
(c1 RLIKE c1) (c0 IS NULL)
1 0
1 0
SELECT SUM(a.t) FROM (SELECT (c1 RLIKE c1) = (c0 IS NULL) as t FROM t0) as a;
SUM(a.t)
0
DROP TABLE t0;
#
# MDEV-21058 CREATE TABLE with generated column and RLIKE results in sigabrt
#
CREATE TABLE t1 (c0 INT);
INSERT INTO t1 VALUES (1),(2),(3);
SELECT ('' RLIKE '[') AS c1 FROM t1;
ERROR 42000: Regex error 'missing terminating ] for character class at offset 1'
SELECT REGEXP_INSTR('','[') AS c1 FROM t1;
ERROR 42000: Regex error 'missing terminating ] for character class at offset 1'
SELECT c0, '' RLIKE NULL AS c1, REGEXP_INSTR('', NULL) AS c2
FROM t1 ORDER BY c0;
c0 c1 c2
1 NULL NULL
2 NULL NULL
3 NULL NULL
DROP TABLE t1;
# End of 10.5 tests
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