# # Test of cast function # select CAST(1-2 AS UNSIGNED); select CAST(CAST(1-2 AS UNSIGNED) AS SIGNED INTEGER); select CONVERT('-1',UNSIGNED); 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); 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 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)); # # Character set convertion # 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, cast(_latin1'a' AS char(2)) as c5; 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 * 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(10), b char(10) 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;