func_concat.test

来自「这是linux下运行的mysql软件包,可用于linux 下安装 php + m」· TEST 代码 · 共 56 行

#
# 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);

# End of 4.1 tests