#
# Test of problem with CONCAT_WS() and long separators.
#

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

CREATE TABLE t1 ( number INT NOT NULL, alpha CHAR(6) NOT NULL );
INSERT INTO t1 VALUES (1413006,'idlfmv'),
(1413065,'smpsfz'),(1413127,'sljrhx'),(1413304,'qerfnd');

SELECT number, alpha, CONCAT_WS('<---->',number,alpha) AS new
FROM t1 GROUP BY number;

SELECT CONCAT_WS('<---->',number,alpha) AS new
FROM t1 GROUP BY new LIMIT 1;

SELECT number, alpha, CONCAT_WS('<->',number,alpha) AS new
FROM t1 GROUP BY new LIMIT 1;

SELECT number, alpha, CONCAT_WS('-',number,alpha,alpha,alpha,alpha,alpha,alpha,alpha) AS new
FROM t1 GROUP BY new LIMIT 1;

SELECT number, alpha, CONCAT_WS('<------------------>',number,alpha) AS new
FROM t1 GROUP BY new LIMIT 1;
drop table t1;

#
# Bug #5540: a problem with double type
#

create table t1 (a char(4), b double, c date, d tinyint(4));
insert into t1 values ('AAAA', 105, '2003-03-01', 1);
select * from t1 where concat(A,C,B,D) = 'AAAA2003-03-011051';
drop table t1;

# BUG#6825 
select 'a' union select concat('a', -4);
select 'a' union select concat('a', -4.5);

select 'a' union select concat('a', -(4 + 1));
select 'a' union select concat('a', 4 - 5);

select 'a' union select concat('a', -'3');
select 'a' union select concat('a', -concat('3',4));

select 'a' union select concat('a', -0);
--replace_result a-0.0 a0.0
select 'a' union select concat('a', -0.0);

--replace_result a-0.0000 a0.0000
select 'a' union select concat('a', -0.0000);

#
# Bug#16716: subselect in concat() may lead to a wrong result
#
select concat((select x from (select 'a' as x) as t1 ),
  (select y from (select 'b' as y) as t2 )) from (select 1 union select 2 )
  as t3;

# End of 4.1 tests

#
# Bug#15962: CONCAT() in UNION may lead to a data trucation.
#
create table t1(f1 varchar(6)) charset=utf8;
insert into t1 values ("123456");
select concat(f1, 2) a from t1 union select 'x' a from t1;
drop table t1;

#
# Bug #36488: regexp returns false matches, concatenating with previous rows
#
CREATE TABLE t1 (c1 varchar(100), c2 varchar(100));
INSERT INTO t1 VALUES ('',''), ('','First'), ('Random','Random');
SELECT * FROM t1 WHERE CONCAT(c1,' ',c2) REGEXP 'First.*';
DROP TABLE t1;

--echo # End of 5.0 tests
