SET timestamp=unix_timestamp('2001-02-03 10:20:30'); select CAST(1-2 AS UNSIGNED); CAST(1-2 AS UNSIGNED) 18446744073709551615 Warnings: Note 1105 Cast to unsigned converted negative integer to it's positive complement select CAST(CAST(1-2 AS UNSIGNED) AS SIGNED INTEGER); CAST(CAST(1-2 AS UNSIGNED) AS SIGNED INTEGER) -1 Warnings: Note 1105 Cast to unsigned converted negative integer to it's positive complement select CAST('10 ' as unsigned integer); CAST('10 ' as unsigned integer) 10 Warnings: Note 1292 Truncated incorrect INTEGER value: '10 ' select cast(-5 as unsigned) | 1, cast(-5 as unsigned) & -1; cast(-5 as unsigned) | 1 cast(-5 as unsigned) & -1 18446744073709551611 18446744073709551611 Warnings: Note 1105 Cast to unsigned converted negative integer to it's positive complement Note 1105 Cast to unsigned converted negative integer to it's positive complement select cast(-5 as unsigned) -1, cast(-5 as unsigned) + 1; cast(-5 as unsigned) -1 cast(-5 as unsigned) + 1 18446744073709551610 18446744073709551612 Warnings: Note 1105 Cast to unsigned converted negative integer to it's positive complement Note 1105 Cast to unsigned converted negative integer to it's positive complement select ~5, cast(~5 as signed); ~5 cast(~5 as signed) 18446744073709551610 -6 explain extended select ~5, cast(~5 as signed); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select ~5 AS `~5`,cast(~5 as signed) AS `cast(~5 as signed)` select cast(18446744073709551615 as signed); cast(18446744073709551615 as signed) -1 select cast(5 as unsigned) -6.0; cast(5 as unsigned) -6.0 -1.0 select cast(NULL as signed), cast(1/0 as signed); cast(NULL as signed) cast(1/0 as signed) NULL NULL Warnings: Warning 1365 Division by 0 select cast(1 as double(5,2)); cast(1 as double(5,2)) 1.00 select cast("5.2222" as double(5,2)); cast("5.2222" as double(5,2)) 5.22 select cast(12.444 as double(5,2)); cast(12.444 as double(5,2)) 12.44 select cast(cast(12.444 as decimal(10,3)) as double(5,2)); cast(cast(12.444 as decimal(10,3)) as double(5,2)) 12.44 select cast(null as double(5,2)); cast(null as double(5,2)) NULL select cast(12.444 as double); cast(12.444 as double) 12.444 select cast(cast("20:01:01" as time) as datetime); cast(cast("20:01:01" as time) as datetime) 2001-02-03 20:01:01 select cast(cast("8:46:06.23434" AS time) as decimal(32,10)); cast(cast("8:46:06.23434" AS time) as decimal(32,10)) 84606.0000000000 select cast(cast("2011-04-05 8:46:06.23434" AS datetime) as decimal(32,6)); cast(cast("2011-04-05 8:46:06.23434" AS datetime) as decimal(32,6)) 20110405084606.000000 # # Check handling of cast with microseconds # select cast(cast(20010203101112.121314 as double) as datetime); cast(cast(20010203101112.121314 as double) as datetime) 2001-02-03 10:11:12 select cast(cast(010203101112.12 as double) as datetime); cast(cast(010203101112.12 as double) as datetime) 2001-02-03 10:11:12 select cast(cast(20010203101112.121314 as decimal(32,6)) as datetime); cast(cast(20010203101112.121314 as decimal(32,6)) as datetime) 2001-02-03 10:11:12 select cast(20010203101112.121314 as datetime); cast(20010203101112.121314 as datetime) 2001-02-03 10:11:12 select cast(110203101112.121314 as datetime); cast(110203101112.121314 as datetime) 2011-02-03 10:11:12 select cast(cast(010203101112.12 as double) as datetime); cast(cast(010203101112.12 as double) as datetime) 2001-02-03 10:11:12 select cast("2011-02-03 10:11:12.123456" as datetime); cast("2011-02-03 10:11:12.123456" as datetime) 2011-02-03 10:11:12 select cast("2011-02-03 10:11:12.123456" as datetime(0)); cast("2011-02-03 10:11:12.123456" as datetime(0)) 2011-02-03 10:11:12 select cast("2011-02-03 10:11:12.123456" as datetime(5)); cast("2011-02-03 10:11:12.123456" as datetime(5)) 2011-02-03 10:11:12.12345 select cast("2011-02-03 10:11:12.123456" as datetime(6)); cast("2011-02-03 10:11:12.123456" as datetime(6)) 2011-02-03 10:11:12.123456 select cast("2011-02-03 10:11:12" as datetime(6)); cast("2011-02-03 10:11:12" as datetime(6)) 2011-02-03 10:11:12.000000 select cast(cast(20010203101112.5 as double) as datetime(1)); cast(cast(20010203101112.5 as double) as datetime(1)) 2001-02-03 10:11:12.5 select cast(cast(010203101112.12 as double) as datetime(2)); cast(cast(010203101112.12 as double) as datetime(2)) 2001-02-03 10:11:12.12 select cast(cast(20010203101112.121314 as decimal(32,6)) as datetime(6)); cast(cast(20010203101112.121314 as decimal(32,6)) as datetime(6)) 2001-02-03 10:11:12.121314 select cast(20010203101112.121314 as datetime(6)); cast(20010203101112.121314 as datetime(6)) 2001-02-03 10:11:12.121314 select cast(110203101112.121314 as datetime(6)); cast(110203101112.121314 as datetime(6)) 2011-02-03 10:11:12.121314 select cast(cast(010203101112.12 as double) as datetime(6)); cast(cast(010203101112.12 as double) as datetime(6)) 2001-02-03 10:11:12.120000 select cast("2011-02-03 10:11:12.123456" as time); cast("2011-02-03 10:11:12.123456" as time) 10:11:12 select cast("2011-02-03 10:11:12.123456" as time(6)); cast("2011-02-03 10:11:12.123456" as time(6)) 10:11:12.123456 select cast("10:11:12.123456" as time); cast("10:11:12.123456" as time) 10:11:12 select cast("10:11:12.123456" as time(0)); cast("10:11:12.123456" as time(0)) 10:11:12 select cast("10:11:12.123456" as time(5)); cast("10:11:12.123456" as time(5)) 10:11:12.12345 select cast("10:11:12.123456" as time(6)); cast("10:11:12.123456" as time(6)) 10:11:12.123456 select cast("10:11:12" as time(6)); cast("10:11:12" as time(6)) 10:11:12.000000 select cast(cast("2011-04-05 8:46:06.123456" AS datetime) as time); cast(cast("2011-04-05 8:46:06.123456" AS datetime) as time) 08:46:06 select cast(cast("2011-04-05 8:46:06.123456" AS datetime) as time(6)); cast(cast("2011-04-05 8:46:06.123456" AS datetime) as time(6)) 08:46:06.000000 select cast(cast("2011-04-05 8:46:06.123456" AS datetime(6)) as time); cast(cast("2011-04-05 8:46:06.123456" AS datetime(6)) as time) 08:46:06 select cast(cast("2011-04-05 8:46:06.123456" AS datetime(6)) as time(6)); cast(cast("2011-04-05 8:46:06.123456" AS datetime(6)) as time(6)) 08:46:06.123456 select cast(NULL as unsigned), cast(1/0 as unsigned); cast(NULL as unsigned) cast(1/0 as unsigned) NULL NULL Warnings: Warning 1365 Division by 0 select cast("A" as binary) = "a", cast(BINARY "a" as CHAR) = "A"; cast("A" as binary) = "a" cast(BINARY "a" as CHAR) = "A" 0 1 select cast("2001-1-1" as DATE), cast("2001-1-1" as DATETIME); cast("2001-1-1" as DATE) cast("2001-1-1" as DATETIME) 2001-01-01 2001-01-01 00:00:00 select cast("1:2:3" as TIME); cast("1:2:3" as TIME) 01:02:03 select CONVERT("2004-01-22 21:45:33",DATE); CONVERT("2004-01-22 21:45:33",DATE) 2004-01-22 select 10+'10'; 10+'10' 20 select 10.0+'10'; 10.0+'10' 20 select 10E+0+'10'; 10E+0+'10' 20 select CONVERT(TIMESTAMP "2004-01-22 21:45:33" USING latin1); CONVERT(TIMESTAMP "2004-01-22 21:45:33" USING latin1) 2004-01-22 21:45:33 select CONVERT(TIMESTAMP "2004-01-22 21:45:33",CHAR); CONVERT(TIMESTAMP "2004-01-22 21:45:33",CHAR) 2004-01-22 21:45:33 select CONVERT(TIMESTAMP "2004-01-22 21:45:33",CHAR(4)); CONVERT(TIMESTAMP "2004-01-22 21:45:33",CHAR(4)) 2004 Warnings: Warning 1292 Truncated incorrect CHAR(4) value: '2004-01-22 21:45:33' select CONVERT(TIMESTAMP "2004-01-22 21:45:33",BINARY(4)); CONVERT(TIMESTAMP "2004-01-22 21:45:33",BINARY(4)) 2004 Warnings: Warning 1292 Truncated incorrect BINARY(4) value: '2004-01-22 21:45:33' select CAST(TIMESTAMP "2004-01-22 21:45:33" AS BINARY(4)); CAST(TIMESTAMP "2004-01-22 21:45:33" AS BINARY(4)) 2004 Warnings: Warning 1292 Truncated incorrect BINARY(4) value: '2004-01-22 21:45:33' select CAST(0xb3 as signed); CAST(0xb3 as signed) 179 select CAST(0x8fffffffffffffff as signed); CAST(0x8fffffffffffffff as signed) -8070450532247928833 select CAST(0xffffffffffffffff as unsigned); CAST(0xffffffffffffffff as unsigned) 18446744073709551615 select CAST(0xfffffffffffffffe as signed); CAST(0xfffffffffffffffe as signed) -2 select cast('-10a' as signed integer); cast('-10a' as signed integer) -10 Warnings: Warning 1292 Truncated incorrect INTEGER value: '-10a' select cast('a10' as unsigned integer); cast('a10' as unsigned integer) 0 Warnings: Warning 1292 Truncated incorrect INTEGER value: 'a10' select 10+'a'; 10+'a' 10 Warnings: Warning 1292 Truncated incorrect DOUBLE value: 'a' select 10.0+cast('a' as decimal); 10.0+cast('a' as decimal) 10.0 Warnings: Warning 1292 Truncated incorrect DECIMAL value: 'a' select 10E+0+'a'; 10E+0+'a' 10 Warnings: Warning 1292 Truncated incorrect DOUBLE value: 'a' select cast("a" as double(5,2)); cast("a" as double(5,2)) 0.00 Warnings: Warning 1292 Truncated incorrect DOUBLE value: 'a' select cast(1000 as decimal(5,2)); cast(1000 as decimal(5,2)) 999.99 Warnings: Warning 1264 Out of range value for column 'cast(1000 as decimal(5,2))' at row 1 select cast(-1000 as decimal(5,2)); cast(-1000 as decimal(5,2)) -999.99 Warnings: Warning 1264 Out of range value for column 'cast(-1000 as decimal(5,2))' at row 1 select cast(1000 as double(5,2)); cast(1000 as double(5,2)) 999.99 Warnings: Note 1264 Out of range value for column 'cast(1000 as double(5,2))' at row 1 select cast(-1000 as double(5,2)); cast(-1000 as double(5,2)) -999.99 Warnings: Note 1264 Out of range value for column 'cast(-1000 as double(5,2))' at row 1 select cast(010203101112.121314 as datetime); cast(010203101112.121314 as datetime) 2001-02-03 10:11:12 select cast(120010203101112.121314 as datetime); cast(120010203101112.121314 as datetime) NULL Warnings: Warning 1292 Incorrect datetime value: '120010203101112.121314' select cast(cast(1.1 as decimal) as datetime); cast(cast(1.1 as decimal) as datetime) NULL Warnings: Warning 1292 Incorrect datetime value: '1' select cast(cast(-1.1 as decimal) as datetime); cast(cast(-1.1 as decimal) as datetime) NULL Warnings: Warning 1292 Incorrect datetime value: '-1' select cast('0' as date); cast('0' as date) NULL Warnings: Warning 1292 Incorrect datetime value: '0' select cast('' as date); cast('' as date) NULL Warnings: Warning 1292 Incorrect datetime value: '' select cast('0' as datetime); cast('0' as datetime) NULL Warnings: Warning 1292 Incorrect datetime value: '0' select cast('' as datetime); cast('' as datetime) NULL Warnings: Warning 1292 Incorrect datetime value: '' select cast('0' as time); cast('0' as time) 00:00:00 select cast('' as time); cast('' as time) NULL Warnings: Warning 1292 Incorrect time value: '' select cast(NULL as DATE); cast(NULL as DATE) NULL select cast(NULL as DATETIME); cast(NULL as DATETIME) NULL select cast(NULL as TIME); cast(NULL as TIME) NULL select cast(NULL as BINARY); cast(NULL as BINARY) NULL select cast(cast(120010203101112.121314 as double) as datetime); cast(cast(120010203101112.121314 as double) as datetime) NULL select cast(cast(1.1 as double) as datetime); cast(cast(1.1 as double) as datetime) NULL select cast(cast(-1.1 as double) as datetime); cast(cast(-1.1 as double) as datetime) NULL explain extended select cast(10 as double(5,2)); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select cast(10 as double(5,2)) AS `cast(10 as double(5,2))` explain extended select cast(10 as double); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select cast(10 as double) AS `cast(10 as double)` explain extended select cast(10 as decimal(5,2)); id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select cast(10 as decimal(5,2)) AS `cast(10 as decimal(5,2))` select cast('18446744073709551616' as unsigned); cast('18446744073709551616' as unsigned) 18446744073709551615 Warnings: Warning 1292 Truncated incorrect INTEGER value: '18446744073709551616' select cast('18446744073709551616' as signed); cast('18446744073709551616' as signed) -1 Warnings: Warning 1292 Truncated incorrect INTEGER value: '18446744073709551616' select cast('9223372036854775809' as signed); cast('9223372036854775809' as signed) -9223372036854775807 Warnings: Note 1105 Cast to signed converted positive out-of-range integer to it's negative complement select cast('-1' as unsigned); cast('-1' as unsigned) 18446744073709551615 Warnings: Note 1105 Cast to unsigned converted negative integer to it's positive complement select cast('abc' as signed); cast('abc' as signed) 0 Warnings: Warning 1292 Truncated incorrect INTEGER value: 'abc' select cast('1a' as signed); cast('1a' as signed) 1 Warnings: Warning 1292 Truncated incorrect INTEGER value: '1a' select cast('' as signed); cast('' as signed) 0 Warnings: Warning 1292 Truncated incorrect INTEGER value: '' select cast(1 as double(5,6)); ERROR 42000: For float(M,D), double(M,D) or decimal(M,D), M must be >= D (column '') select cast(1 as decimal(5,6)); ERROR 42000: For float(M,D), double(M,D) or decimal(M,D), M must be >= D (column '') select cast(1 as double(66,6)); ERROR 42000: Too big precision 66 specified for '1'. Maximum is 65 select cast(1 as decimal(66,6)); ERROR 42000: Too big precision 66 specified for '1'. Maximum is 65 select cast(1 as decimal(64,63)); ERROR 42000: Too big scale 63 specified for '1'. Maximum is 38 select cast(1 as double(64,63)); ERROR 42000: Too big scale 63 specified for '1'. Maximum is 38 set names binary; select cast(_latin1'test' as char character set latin2); cast(_latin1'test' as char character set latin2) test select cast(_koi8r'ÔÅÓÔ' as char character set cp1251); cast(_koi8r'\xD4\xC5\xD3\xD4' as char character set cp1251) òåñò create table t1 select cast(_koi8r'ÔÅÓÔ' as char character set cp1251) as t; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `t` varchar(4) CHARACTER SET cp1251 DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop 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, hex(cast(_latin1'a' AS char(2))) as c5; c1 c2 c3 c4 c5 ab a ab a 6100 Warnings: Warning 1292 Truncated incorrect BINARY(2) value: 'abc' Warning 1292 Truncated incorrect BINARY(2) value: 'a ' select cast(1000 as CHAR(3)); cast(1000 as CHAR(3)) 100 Warnings: Warning 1292 Truncated incorrect BINARY(3) value: '1000' SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR 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; Warnings: Warning 1292 Truncated incorrect BINARY(2) value: 'abc' Warning 1292 Truncated incorrect BINARY(2) value: 'a ' select c1,c2,c3,c4,hex(c5) from t1; c1 c2 c3 c4 hex(c5) ab a ab a 6100 show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `c1` varbinary(2) NOT NULL, `c2` varbinary(2) NOT NULL, `c3` varbinary(2) NOT NULL, `c4` varbinary(2) NOT NULL, `c5` varbinary(2) NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop 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; c1 c2 c3 c4 c5 фг Ñ„ фг Ñ„ Ñ„ Warnings: Warning 1292 Truncated incorrect CHAR(2) value: 'фгх' Warning 1292 Truncated incorrect CHAR(2) value: 'Ñ„ ' SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR 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; Warnings: Warning 1292 Truncated incorrect CHAR(2) value: 'фгх' Warning 1292 Truncated incorrect CHAR(2) value: 'Ñ„ ' select * from t1; c1 c2 c3 c4 c5 фг Ñ„ фг Ñ„ Ñ„ show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `c1` varchar(2) CHARACTER SET utf8 NOT NULL, `c2` varchar(2) CHARACTER SET utf8 NOT NULL, `c3` varchar(2) CHARACTER SET utf8 NOT NULL, `c4` varchar(2) CHARACTER SET utf8 NOT NULL, `c5` varchar(2) CHARACTER SET utf8 NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop table t1; 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; a b cast(a as char character set cp1251) cast(b as binary) ÔÅÓÔ ÔÅÓÔ ÔÅÓÔ ÔÅÓÔ set names koi8r; select a,b,cast(a as char character set cp1251),cast(b as binary) from t1; a b cast(a as char character set cp1251) cast(b as binary) ÔÅÓÔ ÔÅÓÔ æåõæ ÔÅÓÔ set names cp1251; select a,b,cast(a as char character set cp1251),cast(b as binary) from t1; a b cast(a as char character set cp1251) cast(b as binary) ÔÅÓÔ òåñò ÔÅÓÔ ÔÅÓÔ drop table t1; set names binary; select cast("2001-1-1" as date) = "2001-01-01"; cast("2001-1-1" as date) = "2001-01-01" 1 select cast("2001-1-1" as datetime) = "2001-01-01 00:00:00"; cast("2001-1-1" as datetime) = "2001-01-01 00:00:00" 1 select cast("1:2:3" as TIME) = "1:02:03"; cast("1:2:3" as TIME) = "1:02:03" 1 CREATE TABLE t1 (a enum ('aac','aab','aaa') not null); INSERT INTO t1 VALUES ('aaa'),('aab'),('aac'); SELECT a, CAST(a AS CHAR) FROM t1 ORDER BY CAST(a AS UNSIGNED) ; a CAST(a AS CHAR) aac aac aab aab aaa aaa SELECT a, CAST(a AS CHAR(3)) FROM t1 ORDER BY CAST(a AS CHAR(2)), a; a CAST(a AS CHAR(3)) aac aac aab aab aaa aaa Warnings: Warning 1292 Truncated incorrect BINARY(2) value: 'aaa' Warning 1292 Truncated incorrect BINARY(2) value: 'aab' Warning 1292 Truncated incorrect BINARY(2) value: 'aac' SELECT a, CAST(a AS UNSIGNED) FROM t1 ORDER BY CAST(a AS CHAR) ; a CAST(a AS UNSIGNED) aaa 3 aab 2 aac 1 SELECT a, CAST(a AS CHAR(2)) FROM t1 ORDER BY CAST(a AS CHAR(3)), a; a CAST(a AS CHAR(2)) aaa aa aab aa aac aa Warnings: Warning 1292 Truncated incorrect BINARY(2) value: 'aaa' Warning 1292 Truncated incorrect BINARY(2) value: 'aab' Warning 1292 Truncated incorrect BINARY(2) value: 'aac' DROP TABLE t1; select date_add(cast('2004-12-30 12:00:00' as date), interval 0 hour); date_add(cast('2004-12-30 12:00:00' as date), interval 0 hour) 2004-12-30 00:00:00 select timediff(cast('2004-12-30 12:00:00' as time), '12:00:00'); timediff(cast('2004-12-30 12:00:00' as time), '12:00:00') 00:00:00 select timediff(cast('1 12:00:00' as time), '12:00:00'); timediff(cast('1 12:00:00' as time), '12:00:00') 24:00:00 select cast(18446744073709551615 as unsigned); cast(18446744073709551615 as unsigned) 18446744073709551615 select cast(18446744073709551615 as signed); cast(18446744073709551615 as signed) -1 select cast('18446744073709551615' as unsigned); cast('18446744073709551615' as unsigned) 18446744073709551615 select cast('18446744073709551615' as signed); cast('18446744073709551615' as signed) -1 Warnings: Note 1105 Cast to signed converted positive out-of-range integer to it's negative complement select cast('9223372036854775807' as signed); cast('9223372036854775807' as signed) 9223372036854775807 select cast(concat('184467440','73709551615') as unsigned); cast(concat('184467440','73709551615') as unsigned) 18446744073709551615 select cast(concat('184467440','73709551615') as signed); cast(concat('184467440','73709551615') as signed) -1 Warnings: Note 1105 Cast to signed converted positive out-of-range integer to it's negative complement select cast(repeat('1',20) as unsigned); cast(repeat('1',20) as unsigned) 11111111111111111111 select cast(repeat('1',20) as signed); cast(repeat('1',20) as signed) -7335632962598440505 Warnings: Note 1105 Cast to signed converted positive out-of-range integer to it's negative complement select cast(1.0e+300 as signed int); cast(1.0e+300 as signed int) 9223372036854775807 Warnings: Note 1916 Got overflow when converting '1e300' to SIGNED BIGINT. Value truncated create table t1 select cast(1 as unsigned), cast(1 as signed), cast(1 as double(5,2)), cast(1 as decimal(5,3)), cast("A" as binary), cast("A" as char(100)), cast("2001-1-1" as DATE), cast("2001-1-1" as DATETIME), cast("1:2:3" as TIME); show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `cast(1 as unsigned)` int(1) unsigned NOT NULL, `cast(1 as signed)` int(2) NOT NULL, `cast(1 as double(5,2))` double(5,2) DEFAULT NULL, `cast(1 as decimal(5,3))` decimal(5,3) NOT NULL, `cast("A" as binary)` varbinary(1) DEFAULT NULL, `cast("A" as char(100))` varbinary(100) DEFAULT NULL, `cast("2001-1-1" as DATE)` date DEFAULT NULL, `cast("2001-1-1" as DATETIME)` datetime DEFAULT NULL, `cast("1:2:3" as TIME)` time DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop table t1; CREATE TABLE t1 (f1 double); INSERT INTO t1 SET f1 = -1.0e+30 ; INSERT INTO t1 SET f1 = +1.0e+30 ; SELECT f1 AS double_val, CAST(f1 AS SIGNED INT) AS cast_val FROM t1; double_val cast_val -1e30 -9223372036854775808 1e30 9223372036854775807 Warnings: Note 1916 Got overflow when converting '-1e30' to SIGNED BIGINT. Value truncated Note 1916 Got overflow when converting '1e30' to SIGNED BIGINT. Value truncated DROP TABLE t1; select isnull(date(NULL)), isnull(cast(NULL as DATE)); isnull(date(NULL)) isnull(cast(NULL as DATE)) 1 1 SELECT CAST(cast('01-01-01' as date) AS UNSIGNED); CAST(cast('01-01-01' as date) AS UNSIGNED) 20010101 SELECT CAST(cast('01-01-01' as date) AS SIGNED); CAST(cast('01-01-01' as date) AS SIGNED) 20010101 End of 4.1 tests select cast('1.2' as decimal(3,2)); cast('1.2' as decimal(3,2)) 1.20 select 1e18 * cast('1.2' as decimal(3,2)); 1e18 * cast('1.2' as decimal(3,2)) 1.2e18 select cast(cast('1.2' as decimal(3,2)) as signed); cast(cast('1.2' as decimal(3,2)) as signed) 1 set @v1=1e18; select cast(@v1 as decimal(22, 2)); cast(@v1 as decimal(22, 2)) 1000000000000000000.00 select cast(-1e18 as decimal(22,2)); cast(-1e18 as decimal(22,2)) -1000000000000000000.00 create table t1(s1 time); insert into t1 values ('11:11:11'); select cast(s1 as decimal(7,2)) from t1; cast(s1 as decimal(7,2)) 99999.99 Warnings: Warning 1264 Out of range value for column 'cast(s1 as decimal(7,2))' at row 1 drop table t1; 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; CAST(v AS DECIMAL) CAST(tt AS DECIMAL) CAST(t AS DECIMAL) CAST(mt AS DECIMAL) CAST(lt AS DECIMAL) 1 2 3 4 5 DROP TABLE t1; select cast(NULL as decimal(6)) as t1; t1 NULL set names latin1; select hex(cast('a' as char(2) binary)); hex(cast('a' as char(2) binary)) 61 select hex(cast('a' as binary(2))); hex(cast('a' as binary(2))) 6100 select hex(cast('a' as char(2) binary)); hex(cast('a' as char(2) binary)) 61 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; cast(date(d1) as signed) 20070719 NULL 20070719 NULL 20070719 drop table t1; CREATE TABLE t1 (f1 DATE); INSERT INTO t1 VALUES ('2007-07-19'), (NULL); SELECT HOUR(f1), MINUTE(f1), SECOND(f1) FROM t1; HOUR(f1) MINUTE(f1) SECOND(f1) 0 0 0 NULL NULL NULL SELECT HOUR(CAST('2007-07-19' AS DATE)), MINUTE(CAST('2007-07-19' AS DATE)), SECOND(CAST('2007-07-19' AS DATE)); HOUR(CAST('2007-07-19' AS DATE)) MINUTE(CAST('2007-07-19' AS DATE)) SECOND(CAST('2007-07-19' AS DATE)) 0 0 0 SELECT HOUR(CAST(NULL AS DATE)), MINUTE(CAST(NULL AS DATE)), SECOND(CAST(NULL AS DATE)); HOUR(CAST(NULL AS DATE)) MINUTE(CAST(NULL AS DATE)) SECOND(CAST(NULL AS DATE)) NULL NULL NULL SELECT HOUR(NULL), MINUTE(NULL), SECOND(NULL); HOUR(NULL) MINUTE(NULL) SECOND(NULL) NULL NULL NULL DROP TABLE t1; End of 5.0 tests # # Bug #44766: valgrind error when using convert() in a subquery # 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; 1 1 DROP TABLE t1; # # Bug #11765023: 57934: DOS POSSIBLE SINCE BINARY CASTING # DOESN'T ADHERE TO MAX_ALLOWED_PACKET set @save_max_allowed_packet=@@global.max_allowed_packet; SET @@GLOBAL.max_allowed_packet=2048; Warnings: Warning 1708 The value of 'max_allowed_packet' should be no less than the value of 'net_buffer_length' connect newconn, localhost, root,,; SELECT CONVERT('a', BINARY(2049)); CONVERT('a', BINARY(2049)) a Warnings: Warning 1301 Result of cast_as_binary() was larger than max_allowed_packet (2048) - truncated SELECT CONVERT('a', CHAR(2049)); CONVERT('a', CHAR(2049)) a Warnings: Warning 1301 Result of cast_as_char() was larger than max_allowed_packet (2048) - truncated SELECT length(CONVERT(repeat('a',2048), CHAR(2049))); length(CONVERT(repeat('a',2048), CHAR(2049))) 2048 Warnings: Warning 1301 Result of cast_as_char() was larger than max_allowed_packet (2048) - truncated connection default; disconnect newconn; SET @@GLOBAL.max_allowed_packet=@save_max_allowed_packet; # # Bug#13519724 63793: CRASH IN DTCOLLATION::SET(DTCOLLATION &SET) # CREATE TABLE t1 (a VARCHAR(50)); SELECT a FROM t1 WHERE CAST(a as BINARY)=x'62736D697468' AND CAST(a AS BINARY)=x'65736D697468'; a DROP TABLE t1; # # Bug#13581962 HIGH MEMORY USAGE ATTEMPT, THEN CRASH WITH # LONGTEXT, UNION, USER VARIABLE # Bug#14096619 UNABLE TO RESTORE DATABASE DUMP # SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR CREATE TABLE t1 AS SELECT CONCAT(CAST(REPEAT('9', 1000) AS SIGNED)), CONCAT(CAST(REPEAT('9', 1000) AS UNSIGNED)); Warnings: Warning 1292 Truncated incorrect INTEGER value: '99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999...' Warning 1292 Truncated incorrect INTEGER value: '99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999...' SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `CONCAT(CAST(REPEAT('9', 1000) AS SIGNED))` varchar(21) NOT NULL, `CONCAT(CAST(REPEAT('9', 1000) AS UNSIGNED))` varchar(20) NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 DROP TABLE t1; # End of test for Bug#13581962, Bug#14096619 End of 5.1 tests select cast("2101-00-01 02:03:04" as datetime); cast("2101-00-01 02:03:04" as datetime) 2101-00-01 02:03:04 select cast(cast("2101-00-01 02:03:04" as datetime) as time); cast(cast("2101-00-01 02:03:04" as datetime) as time) 02:03:04 SELECT CAST(CAST('20:05:05' AS TIME) as date); CAST(CAST('20:05:05' AS TIME) as date) 2001-02-03 set sql_mode= TRADITIONAL; select cast("2101-00-01 02:03:04" as datetime); cast("2101-00-01 02:03:04" as datetime) NULL Warnings: Warning 1292 Incorrect datetime value: '2101-00-01 02:03:04' select cast(cast("2101-00-01 02:03:04" as datetime) as time); cast(cast("2101-00-01 02:03:04" as datetime) as time) NULL Warnings: Warning 1292 Incorrect datetime value: '2101-00-01 02:03:04' SELECT CAST(CAST('20:05:05' AS TIME) as date); CAST(CAST('20:05:05' AS TIME) as date) 2001-02-03 set sql_mode=DEFAULT; create table t1 (f1 time, f2 date, f3 datetime); insert into t1 values ('11:22:33','2011-12-13','2011-12-13 11:22:33'); select cast(f1 as unsigned), cast(f2 as unsigned), cast(f3 as unsigned) from t1; cast(f1 as unsigned) cast(f2 as unsigned) cast(f3 as unsigned) 112233 20111213 20111213112233 drop table t1; SELECT CAST(TIME('10:20:30') AS DATE) + INTERVAL 1 DAY; CAST(TIME('10:20:30') AS DATE) + INTERVAL 1 DAY 2001-02-04 SET SQL_MODE=ALLOW_INVALID_DATES; SELECT DATE("foo"); DATE("foo") NULL Warnings: Warning 1292 Incorrect datetime value: 'foo' create table t1 (a int, b char(5) as (cast("a" as char(10) binary) + a) ); show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `a` int(11) DEFAULT NULL, `b` char(5) GENERATED ALWAYS AS (cast('a' as char(10) charset latin1) + `a`) VIRTUAL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop table t1; select collation(cast("a" as char(10) binary)); collation(cast("a" as char(10) binary)) latin1_bin select collation(cast("a" as char(10) charset utf8 binary)); collation(cast("a" as char(10) charset utf8 binary)) utf8_bin select collation(cast("a" as char(10) ascii binary)); collation(cast("a" as char(10) ascii binary)) latin1_bin select collation(cast("a" as char(10) binary charset utf8)); collation(cast("a" as char(10) binary charset utf8)) utf8_bin select collation(cast("a" as char(10) binary ascii)); collation(cast("a" as char(10) binary ascii)) latin1_bin # # MDEV-11030 Assertion `precision > 0' failed in decimal_bin_size # SELECT * FROM (SELECT IFNULL(CONVERT(NULL, UNSIGNED), NULL)) sq; IFNULL(CONVERT(NULL, UNSIGNED), NULL) NULL CREATE TABLE t1 AS SELECT IFNULL(CONVERT(NULL, UNSIGNED), NULL); SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `IFNULL(CONVERT(NULL, UNSIGNED), NULL)` decimal(1,0) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 DROP TABLE t1; CREATE TABLE t1 AS SELECT COALESCE(CONVERT(NULL, UNSIGNED), NULL); SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `COALESCE(CONVERT(NULL, UNSIGNED), NULL)` decimal(1,0) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 DROP TABLE t1; CREATE TABLE t1 AS SELECT CASE WHEN TRUE THEN CONVERT(NULL, UNSIGNED) ELSE NULL END; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `CASE WHEN TRUE THEN CONVERT(NULL, UNSIGNED) ELSE NULL END` decimal(1,0) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 DROP TABLE t1; CREATE TABLE t1 AS SELECT IFNULL(CONVERT(NULL,SIGNED),CONVERT(NULL,UNSIGNED)) AS a; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` decimal(1,0) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 DROP TABLE t1; CREATE TABLE t1 AS SELECT -1, CONVERT(NULL,SIGNED), CONCAT(CONVERT(NULL,SIGNED)), 1, CONVERT(NULL,UNSIGNED), CONCAT(CONVERT(NULL,UNSIGNED)); SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `-1` int(2) NOT NULL, `CONVERT(NULL,SIGNED)` int(2) DEFAULT NULL, `CONCAT(CONVERT(NULL,SIGNED))` varchar(2) DEFAULT NULL, `1` int(1) NOT NULL, `CONVERT(NULL,UNSIGNED)` int(1) unsigned DEFAULT NULL, `CONCAT(CONVERT(NULL,UNSIGNED))` varchar(1) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 DROP TABLE t1; CREATE TABLE t1 AS SELECT CONVERT('',SIGNED), CONCAT(CONVERT('',SIGNED)), CONVERT('',UNSIGNED), CONCAT(CONVERT('',UNSIGNED)); Warnings: Warning 1292 Truncated incorrect INTEGER value: '' Warning 1292 Truncated incorrect INTEGER value: '' Warning 1292 Truncated incorrect INTEGER value: '' Warning 1292 Truncated incorrect INTEGER value: '' SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `CONVERT('',SIGNED)` int(2) NOT NULL, `CONCAT(CONVERT('',SIGNED))` varchar(2) NOT NULL, `CONVERT('',UNSIGNED)` int(1) unsigned NOT NULL, `CONCAT(CONVERT('',UNSIGNED))` varchar(1) NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 DROP TABLE t1; # # MDEV-12849 Out-of-range errors when casting hex-hybrid to SIGNED and UNSIGNED # SET sql_mode=STRICT_ALL_TABLES; CREATE PROCEDURE p1(hh TEXT) BEGIN EXECUTE IMMEDIATE CONCAT('CREATE OR REPLACE TABLE t1 AS SELECT CAST(0x', hh, ' AS UNSIGNED) AS c'); DESCRIBE t1; SELECT c, LENGTH(c) FROM t1; DROP TABLE t1; EXECUTE IMMEDIATE CONCAT('CREATE OR REPLACE TABLE t1 AS SELECT CAST(0x', hh, ' AS SIGNED) AS c'); DESCRIBE t1; SELECT c, LENGTH(c) FROM t1; DROP TABLE t1; SELECT '' AS `------`; END $$ CALL p1('FF'); Field Type Null Key Default Extra c int(3) unsigned NO NULL c LENGTH(c) 255 3 Field Type Null Key Default Extra c int(3) NO NULL c LENGTH(c) 255 3 ------ CALL p1('FFFF'); Field Type Null Key Default Extra c int(5) unsigned NO NULL c LENGTH(c) 65535 5 Field Type Null Key Default Extra c int(5) NO NULL c LENGTH(c) 65535 5 ------ CALL p1('FFFFFF'); Field Type Null Key Default Extra c int(8) unsigned NO NULL c LENGTH(c) 16777215 8 Field Type Null Key Default Extra c int(8) NO NULL c LENGTH(c) 16777215 8 ------ CALL p1('FFFFFFFF'); Field Type Null Key Default Extra c int(10) unsigned NO NULL c LENGTH(c) 4294967295 10 Field Type Null Key Default Extra c bigint(10) NO NULL c LENGTH(c) 4294967295 10 ------ CALL p1('FFFFFFFFFF'); Field Type Null Key Default Extra c bigint(13) unsigned NO NULL c LENGTH(c) 1099511627775 13 Field Type Null Key Default Extra c bigint(13) NO NULL c LENGTH(c) 1099511627775 13 ------ CALL p1('FFFFFFFFFFFF'); Field Type Null Key Default Extra c bigint(15) unsigned NO NULL c LENGTH(c) 281474976710655 15 Field Type Null Key Default Extra c bigint(15) NO NULL c LENGTH(c) 281474976710655 15 ------ CALL p1('FFFFFFFFFFFFFF'); Field Type Null Key Default Extra c bigint(17) unsigned NO NULL c LENGTH(c) 72057594037927935 17 Field Type Null Key Default Extra c bigint(17) NO NULL c LENGTH(c) 72057594037927935 17 ------ CALL p1('FFFFFFFFFFFFFFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 18446744073709551615 20 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -1 2 ------ CALL p1('FFFFFFFFFFFFFFFFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 18446744073709551615 20 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -1 2 ------ CALL p1('FFFFFFFFFFFFFFFFFFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 18446744073709551615 20 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -1 2 ------ CALL p1('8000000000000000'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 9223372036854775808 19 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -9223372036854775808 20 ------ CALL p1('80000000000000FF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 9223372036854776063 19 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -9223372036854775553 20 ------ CALL p1('800000000000FFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 9223372036854841343 19 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -9223372036854710273 20 ------ CALL p1('8000000000FFFFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 9223372036871553023 19 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -9223372036837998593 20 ------ CALL p1('80000000FFFFFFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 9223372041149743103 19 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -9223372032559808513 20 ------ CALL p1('800000FFFFFFFFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 9223373136366403583 19 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -9223370937343148033 20 ------ CALL p1('8000FFFFFFFFFFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 9223653511831486463 19 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -9223090561878065153 20 ------ CALL p1('80FFFFFFFFFFFFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 9295429630892703743 19 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -9151314442816847873 20 ------ CALL p1('8FFFFFFFFFFFFFFF'); Field Type Null Key Default Extra c bigint(20) unsigned NO NULL c LENGTH(c) 10376293541461622783 20 Field Type Null Key Default Extra c bigint(20) NO NULL c LENGTH(c) -8070450532247928833 20 ------ DROP PROCEDURE p1; SET sql_mode=DEFAULT; # # MDEV-12852 Out-of-range errors when CAST(1-2 AS UNSIGNED # SET sql_mode=STRICT_ALL_TABLES; CREATE TABLE t1 AS SELECT CAST(-1 AS UNSIGNED), CAST(1-2 AS UNSIGNED); Warnings: Note 1105 Cast to unsigned converted negative integer to it's positive complement Note 1105 Cast to unsigned converted negative integer to it's positive complement SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `CAST(-1 AS UNSIGNED)` bigint(20) unsigned NOT NULL, `CAST(1-2 AS UNSIGNED)` bigint(20) unsigned NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 SELECT * FROM t1; CAST(-1 AS UNSIGNED) CAST(1-2 AS UNSIGNED) 18446744073709551615 18446744073709551615 DROP TABLE t1; SET sql_mode=DEFAULT; # # MDEV-12853 Out-of-range errors when CAST('-1' AS UNSIGNED # SET sql_mode=STRICT_ALL_TABLES; CREATE TABLE t1 AS SELECT CAST('-1' AS UNSIGNED); Warnings: Note 1105 Cast to unsigned converted negative integer to it's positive complement SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `CAST('-1' AS UNSIGNED)` bigint(20) unsigned NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 SELECT * FROM t1; CAST('-1' AS UNSIGNED) 18446744073709551615 DROP TABLE t1; SET sql_mode=DEFAULT; # # MDEV-14376 Explicit CAST(CHAR(N)) erroneously escalates warnings to errors in STRICT_ALL_TABLES # SET sql_mode=STRICT_ALL_TABLES; SELECT CAST('xxx' AS CHAR(1)); CAST('xxx' AS CHAR(1)) x Warnings: Warning 1292 Truncated incorrect CHAR(1) value: 'xxx' CREATE OR REPLACE TABLE t1 (a VARCHAR(1)); INSERT INTO t1 VALUES (CAST('xxx' AS CHAR(1))); Warnings: Warning 1292 Truncated incorrect CHAR(1) value: 'xxx' DROP TABLE t1; CREATE OR REPLACE TABLE t1 (a VARCHAR(3)); INSERT INTO t1 VALUES ('xxx'); UPDATE t1 SET a=CAST(a AS CHAR(1)); Warnings: Warning 1292 Truncated incorrect CHAR(1) value: 'xxx' DROP TABLE t1; BEGIN NOT ATOMIC DECLARE a VARCHAR(30) CHARACTER SET latin1; SET a=CAST('xxx' AS CHAR(1)); END; $$ Warnings: Warning 1292 Truncated incorrect CHAR(1) value: 'xxx' BEGIN NOT ATOMIC DECLARE a VARCHAR(30) CHARACTER SET latin1; SET a=CAST(_latin1'xxx' AS CHAR(1) CHARACTER SET latin1); END; $$ Warnings: Warning 1292 Truncated incorrect CHAR(1) value: 'xxx' BEGIN NOT ATOMIC DECLARE a VARCHAR(30) CHARACTER SET latin1; SET a=CAST(_latin1'xxx' AS CHAR(1) CHARACTER SET utf8); END; $$ Warnings: Warning 1292 Truncated incorrect CHAR(1) value: 'xxx' BEGIN NOT ATOMIC DECLARE a VARCHAR(30) CHARACTER SET utf8; SET a=CAST('xxx' AS CHAR(1)); END; $$ Warnings: Warning 1292 Truncated incorrect CHAR(1) value: 'xxx' BEGIN NOT ATOMIC DECLARE a VARCHAR(30) CHARACTER SET utf8; SET a=CAST(_latin1'xxx' AS CHAR(1) CHARACTER SET latin1); END; $$ Warnings: Warning 1292 Truncated incorrect CHAR(1) value: 'xxx' BEGIN NOT ATOMIC DECLARE a VARCHAR(30) CHARACTER SET utf8; SET a=CAST(_latin1'xxx' AS CHAR(1) CHARACTER SET utf8); END; $$ Warnings: Warning 1292 Truncated incorrect CHAR(1) value: 'xxx' # Conversion problems still escalate warnings to errors (without right truncation) BEGIN NOT ATOMIC DECLARE a VARCHAR(30) CHARACTER SET utf8; SET a=CAST(_utf8 0xD18F AS CHAR(1) CHARACTER SET latin1); END; $$ ERROR HY000: Cannot convert 'utf8' character 0xD18F to 'latin1' # Conversion problems still escalate warnings to errors (with right truncation) BEGIN NOT ATOMIC DECLARE a VARCHAR(30) CHARACTER SET utf8; SET a=CAST(_utf8 0xD18FD18F AS CHAR(1) CHARACTER SET latin1); END; $$ ERROR HY000: Cannot convert 'utf8' character 0xD18F to 'latin1' # CAST(number AS CHAR) escalates warnings to errors on truncation CREATE OR REPLACE TABLE t1 (a VARCHAR(10)); INSERT INTO t1 VALUES (CAST(123 AS CHAR(1))); ERROR 22007: Truncated incorrect CHAR(1) value: '123' DROP TABLE t1; CREATE OR REPLACE TABLE t1 (a VARCHAR(10)); INSERT INTO t1 VALUES ('1'); UPDATE t1 SET a=CAST(123 AS CHAR(1)); ERROR 22007: Truncated incorrect CHAR(1) value: '123' DROP TABLE t1; BEGIN NOT ATOMIC DECLARE a VARCHAR(10); SET a=CAST(123 AS CHAR(1)); END; $$ ERROR 22007: Truncated incorrect CHAR(1) value: '123' # CAST(temporal AS CHAR) escalates warnings to errors on truncation CREATE OR REPLACE TABLE t1 (a VARCHAR(10)); INSERT INTO t1 VALUES (CAST(TIME'10:20:30' AS CHAR(1))); ERROR 22007: Truncated incorrect CHAR(1) value: '10:20:30' DROP TABLE t1; CREATE OR REPLACE TABLE t1 (a VARCHAR(10)); INSERT INTO t1 VALUES ('1'); UPDATE t1 SET a=CAST(TIME'10:20:30' AS CHAR(1)); ERROR 22007: Truncated incorrect CHAR(1) value: '10:20:30' DROP TABLE t1; BEGIN NOT ATOMIC DECLARE a VARCHAR(10); SET a=CAST(TIME'10:20:30' AS CHAR(1)); END; $$ ERROR 22007: Truncated incorrect CHAR(1) value: '10:20:30' SET sql_mode=DEFAULT; # # MDEV-10307 CAST(11068046444225730969 AS SIGNED) does not return a warning # SELECT CAST(11068046444225730969 AS SIGNED); CAST(11068046444225730969 AS SIGNED) -7378697629483820647 # # MDEV-8919 Wrong result for CAST(9999999999999999999.0) # SET sql_mode=''; SELECT CAST(9999999999999999999e0 AS UNSIGNED); CAST(9999999999999999999e0 AS UNSIGNED) 10000000000000000000 CREATE TABLE t1 (a BIGINT UNSIGNED); INSERT INTO t1 VALUES (9999999999999999999e0); SELECT * FROM t1; a 10000000000000000000 DROP TABLE t1; SELECT CAST(9999999999999999999.0 AS UNSIGNED); CAST(9999999999999999999.0 AS UNSIGNED) 9999999999999999999 CREATE TABLE t1 (a BIGINT UNSIGNED); INSERT INTO t1 VALUES (9999999999999999999.0); SELECT * FROM t1; a 9999999999999999999 DROP TABLE t1; SELECT CAST(-1.0 AS UNSIGNED); CAST(-1.0 AS UNSIGNED) 0 Warnings: Warning 1916 Got overflow when converting '-1.0' to UNSIGNED INT. Value truncated CREATE TABLE t1 (a BIGINT UNSIGNED); INSERT INTO t1 VALUES (-1.0); Warnings: Warning 1264 Out of range value for column 'a' at row 1 SELECT * FROM t1; a 0 DROP TABLE t1; SELECT CAST(-1e0 AS UNSIGNED); CAST(-1e0 AS UNSIGNED) 0 Warnings: Note 1916 Got overflow when converting '-1' to UNSIGNED BIGINT. Value truncated CREATE TABLE t1 (a BIGINT UNSIGNED); INSERT INTO t1 VALUES (-1e0); Warnings: Warning 1264 Out of range value for column 'a' at row 1 SELECT * FROM t1; a 0 DROP TABLE t1; SELECT CAST(-1e308 AS UNSIGNED); CAST(-1e308 AS UNSIGNED) 0 Warnings: Note 1916 Got overflow when converting '-1e308' to UNSIGNED BIGINT. Value truncated CREATE TABLE t1 (a BIGINT UNSIGNED); INSERT INTO t1 VALUES (-1e308); Warnings: Warning 1264 Out of range value for column 'a' at row 1 SELECT * FROM t1; a 0 DROP TABLE t1; SELECT CAST(TIME'-00:00:01.123' AS UNSIGNED); CAST(TIME'-00:00:01.123' AS UNSIGNED) 0 Warnings: Note 1916 Got overflow when converting '-00:00:01.123000' to UNSIGNED BIGINT. Value truncated CREATE TABLE t1 (a BIGINT UNSIGNED); INSERT INTO t1 VALUES (TIME'-00:00:01.123'); Warnings: Warning 1264 Out of range value for column 'a' at row 1 SELECT * FROM t1; a 0 DROP TABLE t1; CREATE TABLE t1 (a DOUBLE UNSIGNED); INSERT INTO t1 VALUES (1.9e19); SELECT CAST(a AS SIGNED), CAST(MIN(a) AS SIGNED) FROM t1; CAST(a AS SIGNED) CAST(MIN(a) AS SIGNED) 9223372036854775807 9223372036854775807 Warnings: Note 1916 Got overflow when converting '1.9e19' to SIGNED BIGINT. Value truncated Note 1916 Got overflow when converting '1.9e19' to SIGNED BIGINT. Value truncated DROP TABLE t1; CREATE TABLE t1 (a DECIMAL(30,1) UNSIGNED); INSERT INTO t1 VALUES (1e19); SELECT a, CAST(a AS SIGNED) FROM t1; a CAST(a AS SIGNED) 10000000000000000000.0 9223372036854775807 Warnings: Warning 1916 Got overflow when converting '10000000000000000000.0' to INT. Value truncated DROP TABLE t1; SET sql_mode=DEFAULT;