path: root/mysql-test/t/cast.test

#
# Test of cast function
#

select CAST(1-2 AS UNSIGNED);
select CAST(CAST(1-2 AS UNSIGNED) AS SIGNED INTEGER);
select CAST('10 ' as unsigned integer);
select cast(-5 as unsigned) | 1, cast(-5 as unsigned) & -1;
select cast(-5 as unsigned) -1, cast(-5 as unsigned) + 1;
select ~5, cast(~5 as signed);
explain extended select ~5, cast(~5 as signed);
select cast(5 as unsigned) -6.0;
select cast(NULL as signed), cast(1/0 as signed);
#
# Bug #28250: Run-Time Check Failure #3 - The variable 'value' is being used 
# without being def
# 
# The following line causes Run-Time Check Failure on 
# binaries built with Visual C++ 2005
select cast(NULL as unsigned), cast(1/0 as unsigned); 
select cast("A" as binary) = "a", cast(BINARY "a" as CHAR) = "A";
select cast("2001-1-1" as DATE), cast("2001-1-1" as DATETIME);
select cast("1:2:3" as TIME);
select CONVERT("2004-01-22 21:45:33",DATE);
select 10+'10';
select 10.0+'10';
select 10E+0+'10';

# The following cast creates warnings

select CONVERT(DATE "2004-01-22 21:45:33" USING latin1);
select CONVERT(DATE "2004-01-22 21:45:33",CHAR);
select CONVERT(DATE "2004-01-22 21:45:33",CHAR(4));
select CONVERT(DATE "2004-01-22 21:45:33",BINARY(4));
select CAST(DATE "2004-01-22 21:45:33" AS BINARY(4));
select CAST(0xb3 as signed);
select CAST(0x8fffffffffffffff as signed);
select CAST(0xffffffffffffffff as unsigned);
select CAST(0xfffffffffffffffe as signed);
select cast('-10a' as signed integer);
select cast('a10' as unsigned integer);
select 10+'a';
select 10.0+cast('a' as decimal);
select 10E+0+'a';

# out-of-range cases
select cast('18446744073709551616' as unsigned);
select cast('18446744073709551616' as signed);
select cast('9223372036854775809' as signed);
select cast('-1' as unsigned);
select cast('abc' as signed);
select cast('1a' as signed);
select cast('' as signed);

#
# Character set conversion
#
set names binary;
select cast(_latin1'test' as char character set latin2);
select cast(_koi8r'ÔÅÓÔ' as char character set cp1251);
create table t1 select cast(_koi8r'ÔÅÓÔ' as char character set cp1251) as t;
show create table t1;
drop table t1;

#
# CAST to CHAR with/without length
#
select
  cast(_latin1'ab'  AS char)    as c1,
  cast(_latin1'a '  AS char)    as c2,
  cast(_latin1'abc' AS char(2)) as c3,
  cast(_latin1'a  ' AS char(2)) as c4,
  hex(cast(_latin1'a'   AS char(2))) as c5;
select cast(1000 as CHAR(3));

create table t1 select
  cast(_latin1'ab'  AS char)    as c1,
  cast(_latin1'a '  AS char)    as c2,
  cast(_latin1'abc' AS char(2)) as c3,
  cast(_latin1'a  ' AS char(2)) as c4,
  cast(_latin1'a'   AS char(2)) as c5;
select c1,c2,c3,c4,hex(c5) from t1;
show create table t1;
drop table t1;

#
# CAST to NCHAR with/without length
#
select
  cast(_koi8r'ÆÇ'  AS nchar)    as c1,
  cast(_koi8r'Æ '  AS nchar)    as c2,
  cast(_koi8r'ÆÇÈ' AS nchar(2)) as c3,
  cast(_koi8r'Æ  ' AS nchar(2)) as c4,
  cast(_koi8r'Æ'   AS nchar(2)) as c5;

create table t1 select
  cast(_koi8r'ÆÇ'  AS nchar)    as c1,
  cast(_koi8r'Æ '  AS nchar)    as c2,
  cast(_koi8r'ÆÇÈ' AS nchar(2)) as c3,
  cast(_koi8r'Æ  ' AS nchar(2)) as c4,
  cast(_koi8r'Æ'   AS nchar(2)) as c5;
select * from t1;
show create table t1;
drop table t1;

#
# Bug 2202
# CAST from BINARY to non-BINARY and from non-BINARY to BINARY
#
create table t1 (a binary(4), b char(4) character set koi8r);
insert into t1 values (_binary'ÔÅÓÔ',_binary'ÔÅÓÔ');
select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
set names koi8r;
select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
set names cp1251;
select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
drop table t1;
set names binary;

#
# The following should be fixed in 4.1
#

select cast("2001-1-1" as date) = "2001-01-01";
select cast("2001-1-1" as datetime) = "2001-01-01 00:00:00";
select cast("1:2:3" as TIME) = "1:02:03";
select cast(NULL as DATE);
select cast(NULL as BINARY);

#
# Bug #5228 ORDER BY CAST(enumcol) sorts incorrectly under certain conditions
#
CREATE TABLE t1 (a enum ('aac','aab','aaa') not null);
INSERT INTO t1 VALUES ('aaa'),('aab'),('aac');
# these two should be in enum order
SELECT a, CAST(a AS CHAR) FROM t1 ORDER BY CAST(a AS UNSIGNED) ;
SELECT a, CAST(a AS CHAR(3)) FROM t1 ORDER BY CAST(a AS CHAR(2)), a;
# these two should be in alphabetic order
SELECT a, CAST(a AS UNSIGNED) FROM t1 ORDER BY CAST(a AS CHAR) ;
SELECT a, CAST(a AS CHAR(2)) FROM t1 ORDER BY CAST(a AS CHAR(3)), a;
DROP TABLE t1;

#
# Test for bug #6914 "Problems using time()/date() output in expressions".
# When we are casting datetime value to DATE/TIME we should throw away
# time/date parts (correspondingly).
#
select date_add(cast('2004-12-30 12:00:00' as date), interval 0 hour);
select timediff(cast('2004-12-30 12:00:00' as time), '12:00:00');
# Still we should not throw away "days" part of time value
select timediff(cast('1 12:00:00' as time), '12:00:00');

#
# Bug #7036: Casting from string to unsigned would cap value of result at
# maximum signed value instead of maximum unsigned value
#
select cast(18446744073709551615 as unsigned);
select cast(18446744073709551615 as signed);
select cast('18446744073709551615' as unsigned);
select cast('18446744073709551615' as signed);
select cast('9223372036854775807' as signed);

select cast(concat('184467440','73709551615') as unsigned);
select cast(concat('184467440','73709551615') as signed);

select cast(repeat('1',20) as unsigned);
select cast(repeat('1',20) as signed);

#
# Bug #13344: cast of large decimal to signed int not handled correctly
#
select cast(1.0e+300 as signed int);

#
# Bugs: #15098: CAST(column double TO signed int), wrong result
#
CREATE TABLE t1 (f1 double);
INSERT INTO t1 SET f1 = -1.0e+30 ;
INSERT INTO t1 SET f1 = +1.0e+30 ;
# Expected result is +-1e+30, but Windows returns +-1e+030.
--replace_result 1e+030 1e+30
SELECT f1 AS double_val, CAST(f1 AS SIGNED INT) AS cast_val FROM t1;
DROP TABLE t1;					   

#
# Bug #23938: cast(NULL as DATE)
#

select isnull(date(NULL)), isnull(cast(NULL as DATE));

#
# Bug#23656: Wrong result of CAST from DATE to int
#
SELECT CAST(cast('01-01-01' as date) AS UNSIGNED);
SELECT CAST(cast('01-01-01' as date) AS SIGNED);

--echo End of 4.1 tests


#decimal-related additions
select cast('1.2' as decimal(3,2));
select 1e18 * cast('1.2' as decimal(3,2));
select cast(cast('1.2' as decimal(3,2)) as signed);
set @v1=1e18;
select cast(@v1 as decimal(22, 2));
select cast(-1e18 as decimal(22,2));

create table t1(s1 time);
insert into t1 values ('11:11:11');
select cast(s1 as decimal(7,2)) from t1;
drop table t1;

#
# Test for bug #11283: field conversion from varchar, and text types to decimal
#

CREATE TABLE t1 (v varchar(10), tt tinytext, t text,
                 mt mediumtext, lt longtext);
INSERT INTO t1 VALUES ('1.01', '2.02', '3.03', '4.04', '5.05');

SELECT CAST(v AS DECIMAL), CAST(tt AS DECIMAL), CAST(t AS DECIMAL),
       CAST(mt AS DECIMAL), CAST(lt AS DECIMAL) from t1;

DROP TABLE t1;

#
# Bug #10237 (CAST(NULL DECIMAL) crashes server)
#
select cast(NULL as decimal(6)) as t1;


#
# Bug #17903: cast to char results in binary
#
set names latin1;
select hex(cast('a' as char(2) binary));
select hex(cast('a' as binary(2)));
select hex(cast('a' as char(2) binary));

#
# Bug#29898: Item_date_typecast::val_int doesn't reset the null_value flag.
#
CREATE TABLE t1 (d1 datetime);
INSERT INTO t1(d1) VALUES ('2007-07-19 08:30:00'), (NULL),
  ('2007-07-19 08:34:00'), (NULL), ('2007-07-19 08:36:00');
SELECT cast(date(d1) as signed) FROM t1;
drop table t1;

#
# Bug #31990: MINUTE() and SECOND() return bogus results when used on a DATE
#

# Show that HH:MM:SS of a DATE are 0, and that it's the same for columns
# and typecasts (NULL in, NULL out).
CREATE TABLE t1 (f1 DATE);
INSERT INTO t1 VALUES ('2007-07-19'), (NULL);
SELECT HOUR(f1),
       MINUTE(f1),
       SECOND(f1) FROM t1;
SELECT HOUR(CAST('2007-07-19' AS DATE)),
       MINUTE(CAST('2007-07-19' AS DATE)),
       SECOND(CAST('2007-07-19' AS DATE));
SELECT HOUR(CAST(NULL AS DATE)),
       MINUTE(CAST(NULL AS DATE)),
       SECOND(CAST(NULL AS DATE));
SELECT HOUR(NULL),
       MINUTE(NULL),
       SECOND(NULL);
DROP TABLE t1;

--echo End of 5.0 tests

--echo #
--echo #  Bug #44766: valgrind error when using convert() in a subquery
--echo #

CREATE TABLE t1(a tinyint);
INSERT INTO t1 VALUES (127);
SELECT 1 FROM
(
 SELECT CONVERT(t2.a USING UTF8) FROM t1, t1 t2 LIMIT 1
) AS s LIMIT 1;
DROP TABLE t1;

--echo #
--echo # Bug #11765023: 57934: DOS POSSIBLE SINCE BINARY CASTING 
--echo #   DOESN'T ADHERE TO MAX_ALLOWED_PACKET

SET @@GLOBAL.max_allowed_packet=2048;
# reconnect to make the new max packet size take effect
--connect (newconn, localhost, root,,)

SELECT CONVERT('a', BINARY(2049));  
SELECT CONVERT('a', CHAR(2049));  

connection default;
disconnect newconn;
SET @@GLOBAL.max_allowed_packet=default;

--echo End of 5.1 tests