mariadb/mysql-test/main/func_concat.test

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

--disable_warnings
DROP TABLE IF EXISTS t1;
DROP PROCEDURE IF EXISTS p1;
--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


--echo #
--echo # Bug #44743: Join in combination with concat does not always work
--echo #
CREATE TABLE t1 (
  a VARCHAR(100) NOT NULL DEFAULT '0',
  b VARCHAR(2) NOT NULL DEFAULT '',
  c VARCHAR(2) NOT NULL DEFAULT '',
  d TEXT NOT NULL,
  PRIMARY KEY (a, b, c),
  KEY (a)
) DEFAULT CHARSET=utf8;

INSERT INTO t1 VALUES ('gui_A', 'a', 'b', 'str1'),
  ('gui_AB', 'a', 'b', 'str2'), ('gui_ABC', 'a', 'b', 'str3');

CREATE TABLE t2 (
  a VARCHAR(100) NOT NULL DEFAULT '',
  PRIMARY KEY (a)
) DEFAULT CHARSET=latin1;

INSERT INTO t2 VALUES ('A'), ('AB'), ('ABC');

SELECT CONCAT('gui_', t2.a), t1.d FROM t2 
  LEFT JOIN t1 ON t1.a = CONCAT('gui_', t2.a) AND t1.b = 'a' AND t1.c = 'b';

EXPLAIN SELECT CONCAT('gui_', t2.a), t1.d FROM t2 
  LEFT JOIN t1 ON t1.a = CONCAT('gui_', t2.a) AND t1.b = 'a' AND t1.c = 'b';

DROP TABLE t1, t2;


--echo #
--echo # Bug #50096: CONCAT_WS inside procedure returning wrong data
--echo #

CREATE PROCEDURE p1(a varchar(255), b int, c int)
  SET @query = CONCAT_WS(",", a, b, c);

CALL p1("abcde", "0", "1234");
SELECT @query;

DROP PROCEDURE p1;

--echo #
--echo # Bug #40625: Concat fails on DOUBLE values in a Stored Procedure,
--echo #             while DECIMAL works
--echo #

DELIMITER //;
CREATE PROCEDURE p1()
BEGIN
  DECLARE v1 DOUBLE(10,3);
  SET v1= 100;
  SET @s = CONCAT('########################################', 40 , v1);
  SELECT @s;
END;//
DELIMITER ;//

CALL p1();
CALL p1();

DROP PROCEDURE p1;

--echo # End of 5.1 tests


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

--echo #
--echo # MDEV-10306 Wrong results with combination of CONCAT, SUBSTR and CONVERT in subquery
--echo #

SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='derived_merge=on';

CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
INSERT INTO t1 VALUES('1234567');
SELECT CONCAT(SUBSTR(t2, 1, 3), SUBSTR(t2, 5)) c1,
       CONCAT(SUBSTR(t2,1,3),'---',SUBSTR(t2,5)) c2
   FROM (SELECT CONVERT(t USING latin1) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT CONVERT(t USING latin1) t2 FROM t1) sub;
DROP TABLE t1;

# Other functions affected by MDEV-10306

CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
INSERT INTO t1 VALUES('1234567');
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT CONVERT(t USING latin1) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT REVERSE(t) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT SOUNDEX(t) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT TO_BASE64(t) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT WEIGHT_STRING(t) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT HEX(t) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT QUOTE(t) t2 FROM t1) sub;
DROP TABLE t1;

CREATE TABLE t1 (t VARCHAR(32) CHARSET latin1);
INSERT INTO t1 VALUES(TO_BASE64('abcdefghi'));
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT FROM_BASE64(t) t2 FROM t1) sub;
DROP TABLE t1;

CREATE TABLE t1 (t VARCHAR(32) CHARSET latin1);
INSERT INTO t1 VALUES(HEX('abcdefghi'));
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UNHEX(t) t2 FROM t1) sub;
DROP TABLE t1;

CREATE TABLE t1 (t VARCHAR(30) CHARSET latin1);
INSERT INTO t1 VALUES('test');
SELECT LENGTH(CONCAT(t2)) c2 FROM (SELECT AES_ENCRYPT(t,'x') t2 FROM t1) sub;
SELECT LENGTH(CONCAT(t2,'-',t2)) c2 FROM (SELECT AES_ENCRYPT(t,'x') t2 FROM t1) sub;
SELECT LENGTH(CONCAT(t2,'--',t2)) c2 FROM (SELECT AES_ENCRYPT(t,'x') t2 FROM t1) sub;
SELECT LENGTH(CONCAT(t2)) c2 FROM (SELECT AES_DECRYPT(AES_ENCRYPT(t,'x'),'x') t2 FROM t1) sub;
SELECT LENGTH(CONCAT(t2,'-',t2)) c2 FROM (SELECT AES_DECRYPT(AES_ENCRYPT(t,'x'),'x') t2 FROM t1) sub;
SELECT LENGTH(CONCAT(t2,'--',t2)) c2 FROM (SELECT AES_DECRYPT(AES_ENCRYPT(t,'x'),'x') t2 FROM t1) sub;
DROP TABLE t1;


# Functions not affected by MDEV-10306
# They only had an unused tmp_value, which was removed.

CREATE TABLE t1 (t VARCHAR(64) CHARSET latin1);
INSERT INTO t1 VALUES('123456789');
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT MD5(t) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT FORMAT(t,2) t2 FROM t1) sub;
DROP TABLE t1;

# Functions not affected by MDEV-10306
# They already use tmp_value only for internal purposes and
# return the result in the String passed to val_str()

CREATE TABLE t1 (t VARCHAR(32) CHARSET latin1);
INSERT INTO t1 VALUES('abcdefghi');
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT INSERT(t,3,4,'xxx') t2 FROM t1) sub;
DROP TABLE t1;


# Functions not affected by MDEV-10306
# They use this code style:
#   String *res= args[0]->val_str(str);
#   tmp_value.set(*res, start, end);
#   return &tmp_value;

CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
INSERT INTO t1 VALUES('abcdefghi');
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LEFT(t,10) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT RIGHT(t,10) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT SUBSTR(t,1,10) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LTRIM(t) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT RTRIM(t) t2 FROM t1) sub;
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT TRIM(t) t2 FROM t1) sub;
DROP TABLE t1;

SET optimizer_switch=@save_optimizer_switch;

--echo #
--echo # MDEV-13790 UNHEX() of a somewhat complicated CONCAT() returns NULL
--echo #

SELECT UNHEX(CONCAT('414C2', HEX(8 + ROUND(RAND()*7)), SUBSTR(SHA(UUID()),6,33),HEX(2+ROUND(RAND()*8)))) IS NULL AS c1;


--echo #
--echo # MDEV-13119 Wrong results with CAST(AS CHAR) and subquery
--echo #

SET optimizer_switch=_utf8'derived_merge=on';
CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
INSERT INTO t1 VALUES('abcdefghi');
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT CAST(t AS CHAR CHARACTER SET utf8) t2 FROM t1) sub;
DROP TABLE t1;
SET optimizer_switch=@save_optimizer_switch;


--echo #
--echo # MDEV-13120 Wrong results with MAKE_SET() and subquery
--echo #

CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
INSERT INTO t1 VALUES('abcdefghi');
SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT MAKE_SET(3,t,t) t2 FROM t1) sub;
DROP TABLE t1;