drop table if exists t1; create table t1 (t datetime); insert into t1 values (101),(691231),(700101),(991231),(10000101),(99991231),(101000000),(691231000000),(700101000000),(991231235959),(10000101000000),(99991231235959),(20030100000000),(20030000000000); select * from t1; t 2000-01-01 00:00:00 2069-12-31 00:00:00 1970-01-01 00:00:00 1999-12-31 00:00:00 1000-01-01 00:00:00 9999-12-31 00:00:00 2000-01-01 00:00:00 2069-12-31 00:00:00 1970-01-01 00:00:00 1999-12-31 23:59:59 1000-01-01 00:00:00 9999-12-31 23:59:59 2003-01-00 00:00:00 2003-00-00 00:00:00 delete from t1 where t > 0; optimize table t1; Table Op Msg_type Msg_text test.t1 optimize status OK check table t1; Table Op Msg_type Msg_text test.t1 check status OK delete from t1; insert into t1 values("000101"),("691231"),("700101"),("991231"),("00000101"),("00010101"),("99991231"),("00101000000"),("691231000000"),("700101000000"),("991231235959"),("10000101000000"),("99991231235959"),("20030100000000"),("20030000000000"); insert into t1 values ("2003-003-03"); insert into t1 values ("20030102T131415"),("2001-01-01T01:01:01"), ("2001-1-1T1:01:01"); select * from t1; t 2000-01-01 00:00:00 2069-12-31 00:00:00 1970-01-01 00:00:00 1999-12-31 00:00:00 0000-01-01 00:00:00 0001-01-01 00:00:00 9999-12-31 00:00:00 2000-10-10 00:00:00 2069-12-31 00:00:00 1970-01-01 00:00:00 1999-12-31 23:59:59 1000-01-01 00:00:00 9999-12-31 23:59:59 2003-01-00 00:00:00 2003-00-00 00:00:00 2003-03-03 00:00:00 2003-01-02 13:14:15 2001-01-01 01:01:01 2001-01-01 01:01:01 truncate table t1; insert into t1 values("2003-0303 12:13:14"); Warnings: Warning 1264 Out of range value for column 't' at row 1 select * from t1; t 0000-00-00 00:00:00 drop table t1; CREATE TABLE t1 (a timestamp, b date, c time, d datetime); insert into t1 (b,c,d) values(now(),curtime(),now()); Warnings: Note 1265 Data truncated for column 'b' at row 1 select date_format(a,"%Y-%m-%d")=b,right(a+0,6)=c+0,a=d+0 from t1; date_format(a,"%Y-%m-%d")=b right(a+0,6)=c+0 a=d+0 1 1 1 drop table t1; CREATE TABLE t1 (a datetime not null); insert into t1 values (0); select * from t1 where a is null; a 0000-00-00 00:00:00 drop table t1; create table t1 (id int, dt datetime); insert into t1 values (1,"2001-08-14 00:00:00"),(2,"2001-08-15 00:00:00"),(3,"2001-08-16 00:00:00"),(4,"2003-09-15 01:20:30"); select * from t1 where dt='2001-08-14 00:00:00' and dt = if(id=1,'2001-08-14 00:00:00','1999-08-15'); id dt 1 2001-08-14 00:00:00 create index dt on t1 (dt); select * from t1 where dt > 20021020; id dt 4 2003-09-15 01:20:30 select * from t1 ignore index (dt) where dt > 20021020; id dt 4 2003-09-15 01:20:30 drop table t1; CREATE TABLE `t1` ( `date` datetime NOT NULL default '0000-00-00 00:00:00', `numfacture` int(6) unsigned NOT NULL default '0', `expedition` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`numfacture`), KEY `date` (`date`), KEY `expedition` (`expedition`) ) ENGINE=MyISAM; INSERT INTO t1 (expedition) VALUES ('0001-00-00 00:00:00'); SELECT * FROM t1 WHERE expedition='0001-00-00 00:00:00'; date numfacture expedition 0000-00-00 00:00:00 0 0001-00-00 00:00:00 INSERT INTO t1 (numfacture,expedition) VALUES ('1212','0001-00-00 00:00:00'); SELECT * FROM t1 WHERE expedition='0001-00-00 00:00:00'; date numfacture expedition 0000-00-00 00:00:00 0 0001-00-00 00:00:00 0000-00-00 00:00:00 1212 0001-00-00 00:00:00 EXPLAIN SELECT * FROM t1 WHERE expedition='0001-00-00 00:00:00'; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref expedition expedition 8 const 1 drop table t1; create table t1 (a datetime not null, b datetime not null); insert into t1 values (now(), now()); insert into t1 values (now(), now()); select * from t1 where a is null or b is null; a b drop table t1; create table t1 (t datetime); insert into t1 values (20030102030460),(20030102036301),(20030102240401), (20030132030401),(20031302030401),(100001202030401); Warnings: Warning 1264 Out of range value for column 't' at row 1 Warning 1264 Out of range value for column 't' at row 2 Warning 1264 Out of range value for column 't' at row 3 Warning 1264 Out of range value for column 't' at row 4 Warning 1264 Out of range value for column 't' at row 5 Warning 1264 Out of range value for column 't' at row 6 select * from t1; t 0000-00-00 00:00:00 0000-00-00 00:00:00 0000-00-00 00:00:00 0000-00-00 00:00:00 0000-00-00 00:00:00 0000-00-00 00:00:00 delete from t1; insert into t1 values ("2003-01-02 03:04:60"),("2003-01-02 03:63:01"),("2003-01-02 24:04:01"), ("2003-01-32 03:04:01"),("2003-13-02 03:04:01"), ("10000-12-02 03:04:00"); Warnings: Warning 1264 Out of range value for column 't' at row 1 Warning 1264 Out of range value for column 't' at row 2 Warning 1264 Out of range value for column 't' at row 3 Warning 1264 Out of range value for column 't' at row 4 Warning 1264 Out of range value for column 't' at row 5 Warning 1264 Out of range value for column 't' at row 6 select * from t1; t 0000-00-00 00:00:00 0000-00-00 00:00:00 0000-00-00 00:00:00 0000-00-00 00:00:00 0000-00-00 00:00:00 0000-00-00 00:00:00 delete from t1; insert into t1 values ("0000-00-00 00:00:00 some trailer"),("2003-01-01 00:00:00 some trailer"); Warnings: Warning 1264 Out of range value for column 't' at row 1 Warning 1264 Out of range value for column 't' at row 2 select * from t1 order by t; t 0000-00-00 00:00:00 2003-01-01 00:00:00 drop table t1; create table t1 (dt datetime); insert into t1 values ("12-00-00"), ("00-00-00 01:00:00"); insert into t1 values ("00-00-00"), ("00-00-00 00:00:00"); select * from t1; dt 2012-00-00 00:00:00 2000-00-00 01:00:00 0000-00-00 00:00:00 0000-00-00 00:00:00 drop table t1; select cast('2006-12-05 22:10:10' as datetime) + 0; cast('2006-12-05 22:10:10' as datetime) + 0 20061205221010.000000 CREATE TABLE t1(a DATETIME NOT NULL); INSERT INTO t1 VALUES ('20060606155555'); SELECT a FROM t1 WHERE a=(SELECT MAX(a) FROM t1) AND (a="20060606155555"); a 2006-06-06 15:55:55 PREPARE s FROM 'SELECT a FROM t1 WHERE a=(SELECT MAX(a) FROM t1) AND (a="20060606155555")'; EXECUTE s; a 2006-06-06 15:55:55 DROP PREPARE s; DROP TABLE t1; SELECT CAST(CAST('2006-08-10' AS DATE) AS DECIMAL(20,6)); CAST(CAST('2006-08-10' AS DATE) AS DECIMAL(20,6)) 20060810.000000 SELECT CAST(CAST('2006-08-10 10:11:12' AS DATETIME) AS DECIMAL(20,6)); CAST(CAST('2006-08-10 10:11:12' AS DATETIME) AS DECIMAL(20,6)) 20060810101112.000000 SELECT CAST(CAST('2006-08-10 10:11:12' AS DATETIME) + INTERVAL 14 MICROSECOND AS DECIMAL(20,6)); CAST(CAST('2006-08-10 10:11:12' AS DATETIME) + INTERVAL 14 MICROSECOND AS DECIMAL(20,6)) 20060810101112.000014 SELECT CAST(CAST('10:11:12.098700' AS TIME) AS DECIMAL(20,6)); CAST(CAST('10:11:12.098700' AS TIME) AS DECIMAL(20,6)) 101112.098700 set @org_mode=@@sql_mode; create table t1 (da date default '1962-03-03 23:33:34', dt datetime default '1962-03-03'); Warnings: Note 1265 Data truncated for column 'da' at row 1 show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `da` date DEFAULT '1962-03-03', `dt` datetime DEFAULT '1962-03-03 00:00:00' ) ENGINE=MyISAM DEFAULT CHARSET=latin1 insert into t1 values (); insert into t1 values ('2007-03-23 13:49:38','2007-03-23 13:49:38'); Warnings: Note 1265 Data truncated for column 'da' at row 1 set @@sql_mode='ansi,traditional'; insert into t1 values ('2007-03-23 13:49:38','2007-03-23 13:49:38'); Warnings: Note 1265 Data truncated for column 'da' at row 1 insert into t1 set dt='2007-03-23 13:49:38',da=dt; Warnings: Note 1265 Data truncated for column 'da' at row 1 insert into t1 values ('2007-03-32','2007-03-23 13:49:38'); ERROR 22007: Incorrect date value: '2007-03-32' for column 'da' at row 1 select * from t1; da dt 1962-03-03 1962-03-03 00:00:00 2007-03-23 2007-03-23 13:49:38 2007-03-23 2007-03-23 13:49:38 2007-03-23 2007-03-23 13:49:38 drop table t1; create table t1 (da date default '1962-03-32 23:33:34', dt datetime default '1962-03-03'); ERROR 42000: Invalid default value for 'da' create table t1 (t time default '916:00:00 a'); ERROR 42000: Invalid default value for 't' set @@sql_mode= @org_mode; create table t1 (f1 date, f2 datetime, f3 timestamp); insert into t1(f1) values(curdate()); select curdate() < now(), f1 < now(), cast(f1 as date) < now() from t1; curdate() < now() f1 < now() cast(f1 as date) < now() 1 1 1 delete from t1; insert into t1 values('2001-01-01','2001-01-01 01:01:01','2001-01-01 01:01:01'); insert into t1 values('2001-02-05','2001-02-05 00:00:00','2001-02-05 01:01:01'); insert into t1 values('2001-03-10','2001-03-09 01:01:01','2001-03-10 01:01:01'); insert into t1 values('2001-04-15','2001-04-15 00:00:00','2001-04-15 00:00:00'); insert into t1 values('2001-05-20','2001-05-20 01:01:01','2001-05-20 01:01:01'); select f1, f3 from t1 where f1 >= '2001-02-05 00:00:00' and f3 <= '2001-04-15'; f1 f3 2001-02-05 2001-02-05 01:01:01 2001-03-10 2001-03-10 01:01:01 2001-04-15 2001-04-15 00:00:00 select f1, f3 from t1 where f1 >= '2001-2-5 0:0:0' and f2 <= '2001-4-15'; f1 f3 2001-02-05 2001-02-05 01:01:01 2001-03-10 2001-03-10 01:01:01 2001-04-15 2001-04-15 00:00:00 select f1, f2 from t1 where if(1, f1, 0) >= f2; f1 f2 2001-02-05 2001-02-05 00:00:00 2001-03-10 2001-03-09 01:01:01 2001-04-15 2001-04-15 00:00:00 select 1 from dual where cast('2001-1-1 2:3:4' as date) = cast('2001-01-01' as datetime); 1 1 select f1, f2, f1 > f2, f1 = f2, f1 < f2 from t1; f1 f2 f1 > f2 f1 = f2 f1 < f2 2001-01-01 2001-01-01 01:01:01 0 0 1 2001-02-05 2001-02-05 00:00:00 0 1 0 2001-03-10 2001-03-09 01:01:01 1 0 0 2001-04-15 2001-04-15 00:00:00 0 1 0 2001-05-20 2001-05-20 01:01:01 0 0 1 drop table t1; create table t1 (f1 date, f2 datetime, f3 timestamp); insert into t1 values('2001-01-01','2001-01-01 01:01:01','2001-01-01 01:01:01'); insert into t1 values('2001-02-05','2001-02-05 00:00:00','2001-02-05 01:01:01'); insert into t1 values('2001-03-10','2001-03-09 01:01:01','2001-03-10 01:01:01'); insert into t1 values('2001-04-15','2001-04-15 00:00:00','2001-04-15 00:00:00'); insert into t1 values('2001-05-20','2001-05-20 01:01:01','2001-05-20 01:01:01'); select f2 from t1 where f2 between '2001-2-5' and '01-04-14'; f2 2001-02-05 00:00:00 2001-03-09 01:01:01 select f1, f2, f3 from t1 where f1 between f2 and f3; f1 f2 f3 2001-02-05 2001-02-05 00:00:00 2001-02-05 01:01:01 2001-03-10 2001-03-09 01:01:01 2001-03-10 01:01:01 2001-04-15 2001-04-15 00:00:00 2001-04-15 00:00:00 select f1, f2, f3 from t1 where cast(f1 as datetime) between f2 and cast(f3 as date); f1 f2 f3 2001-02-05 2001-02-05 00:00:00 2001-02-05 01:01:01 2001-03-10 2001-03-09 01:01:01 2001-03-10 01:01:01 2001-04-15 2001-04-15 00:00:00 2001-04-15 00:00:00 select f2 from t1 where '2001-04-10 12:34:56' between f2 and '01-05-01'; f2 2001-01-01 01:01:01 2001-02-05 00:00:00 2001-03-09 01:01:01 select f2, f3 from t1 where '01-03-10' between f2 and f3; f2 f3 2001-03-09 01:01:01 2001-03-10 01:01:01 select f2 from t1 where DATE(f2) between "2001-4-15" AND "01-4-15"; f2 2001-04-15 00:00:00 SELECT 1 from dual where NOW() BETWEEN CURRENT_DATE() - INTERVAL 1 DAY AND CURRENT_DATE(); 1 drop table t1; create table t1 (f1 date); insert into t1 values('01-01-01'),('01-01-02'),('01-01-03'); select * from t1 where f1 in ('01-01-01','2001-01-02','2001-01-03 00:00:00'); f1 2001-01-01 2001-01-02 2001-01-03 create table t2(f2 datetime); insert into t2 values('01-01-01 00:00:00'),('01-02-03 12:34:56'),('02-04-06 11:22:33'); select * from t2 where f2 in ('01-01-01','01-02-03 12:34:56','01-02-03'); f2 2001-01-01 00:00:00 2001-02-03 12:34:56 select * from t1,t2 where '01-01-02' in (f1, cast(f2 as date)); f1 f2 2001-01-02 2001-01-01 00:00:00 2001-01-02 2001-02-03 12:34:56 2001-01-02 2002-04-06 11:22:33 select * from t1,t2 where '01-01-01' in (f1, '01-02-03'); f1 f2 2001-01-01 2001-01-01 00:00:00 2001-01-01 2001-02-03 12:34:56 2001-01-01 2002-04-06 11:22:33 select * from t1,t2 where if(1,'01-02-03 12:34:56','') in (f1, f2); f1 f2 2001-01-01 2001-02-03 12:34:56 2001-01-02 2001-02-03 12:34:56 2001-01-03 2001-02-03 12:34:56 create table t3(f3 varchar(20)); insert into t3 select * from t2; select * from t2,t3 where f2 in (f3,'03-04-05'); f2 f3 2001-01-01 00:00:00 2001-01-01 00:00:00 2001-02-03 12:34:56 2001-02-03 12:34:56 2002-04-06 11:22:33 2002-04-06 11:22:33 select f1,f2,f3 from t1,t2,t3 where (f1,'1') in ((f2,'1'),(f3,'1')); f1 f2 f3 2001-01-01 2001-01-01 00:00:00 2001-01-01 00:00:00 2001-01-01 2001-02-03 12:34:56 2001-01-01 00:00:00 2001-01-01 2002-04-06 11:22:33 2001-01-01 00:00:00 2001-01-01 2001-01-01 00:00:00 2001-02-03 12:34:56 2001-01-01 2001-01-01 00:00:00 2002-04-06 11:22:33 select f1 from t1 where ('1',f1) in (('1','01-01-01'),('1','2001-1-1 0:0:0'),('1','02-02-02')); f1 2001-01-01 drop table t1,t2,t3; select least(cast('01-01-01' as date), '01-01-02'); least(cast('01-01-01' as date), '01-01-02') 2001-01-01 select greatest(cast('01-01-01' as date), '01-01-02'); greatest(cast('01-01-01' as date), '01-01-02') 01-01-02 select least(cast('01-01-01' as date), '01-01-02') + 0; least(cast('01-01-01' as date), '01-01-02') + 0 20010101 select greatest(cast('01-01-01' as date), '01-01-02') + 0; greatest(cast('01-01-01' as date), '01-01-02') + 0 20010102 select least(cast('01-01-01' as datetime), '01-01-02') + 0; least(cast('01-01-01' as datetime), '01-01-02') + 0 20010101000000 select cast(least(cast('01-01-01' as datetime), '01-01-02') as signed); cast(least(cast('01-01-01' as datetime), '01-01-02') as signed) 20010101000000 select cast(least(cast('01-01-01' as datetime), '01-01-02') as decimal(16,2)); cast(least(cast('01-01-01' as datetime), '01-01-02') as decimal(16,2)) 20010101000000.00 DROP PROCEDURE IF EXISTS test27759 ; CREATE PROCEDURE test27759() BEGIN declare v_a date default '2007-4-10'; declare v_b date default '2007-4-11'; declare v_c datetime default '2004-4-9 0:0:0'; select v_a as a,v_b as b, least( v_a, v_b ) as a_then_b, least( v_b, v_a ) as b_then_a, least( v_c, v_a ) as c_then_a; END;| call test27759(); a b a_then_b b_then_a c_then_a 2007-04-10 2007-04-11 2007-04-10 2007-04-10 2004-04-09 00:00:00 drop procedure test27759; create table t1 (f1 date); insert into t1 values (curdate()); select left(f1,10) = curdate() from t1; left(f1,10) = curdate() 1 drop table t1; create table t1(f1 date); insert into t1 values('01-01-01'),('02-02-02'),('01-01-01'),('02-02-02'); set @bug28261=''; select if(@bug28261 = f1, '', @bug28261:= f1) from t1; if(@bug28261 = f1, '', @bug28261:= f1) 2001-01-01 2002-02-02 2001-01-01 2002-02-02 Warnings: Warning 1292 Incorrect date value: '' for column 'f1' at row 1 select if(@bug28261 = f1, '', @bug28261:= f1) from t1; if(@bug28261 = f1, '', @bug28261:= f1) 2001-01-01 2002-02-02 2001-01-01 2002-02-02 select if(@bug28261 = f1, '', @bug28261:= f1) from t1; if(@bug28261 = f1, '', @bug28261:= f1) 2001-01-01 2002-02-02 2001-01-01 2002-02-02 drop table t1; create table t1(f1 datetime); insert into t1 values('2001-01-01'),('2002-02-02'); select * from t1 where f1 between 20020101 and 20070101000000; f1 2002-02-02 00:00:00 select * from t1 where f1 between 2002010 and 20070101000000; f1 2001-01-01 00:00:00 2002-02-02 00:00:00 Warnings: Warning 1292 Incorrect datetime value: '2002010' for column 'f1' at row 1 select * from t1 where f1 between 20020101 and 2007010100000; f1 Warnings: Warning 1292 Incorrect datetime value: '2007010100000' for column 'f1' at row 1 drop table t1; # # Bug#27216: functions with parameters of different date types may # return wrong type of the result. # create table t1 (f1 date, f2 datetime, f3 varchar(20)); create table t2 as select coalesce(f1,f1) as f4 from t1; desc t2; Field Type Null Key Default Extra f4 date YES NULL create table t3 as select coalesce(f1,f2) as f4 from t1; desc t3; Field Type Null Key Default Extra f4 datetime YES NULL create table t4 as select coalesce(f2,f2) as f4 from t1; desc t4; Field Type Null Key Default Extra f4 datetime YES NULL create table t5 as select coalesce(f1,f3) as f4 from t1; desc t5; Field Type Null Key Default Extra f4 varbinary(20) YES NULL create table t6 as select coalesce(f2,f3) as f4 from t1; desc t6; Field Type Null Key Default Extra f4 varbinary(20) YES NULL create table t7 as select coalesce(makedate(1997,1),f2) as f4 from t1; desc t7; Field Type Null Key Default Extra f4 datetime YES NULL create table t8 as select coalesce(cast('01-01-01' as datetime),f2) as f4 from t1; desc t8; Field Type Null Key Default Extra f4 datetime YES NULL create table t9 as select case when 1 then cast('01-01-01' as date) when 0 then cast('01-01-01' as date) end as f4 from t1; desc t9; Field Type Null Key Default Extra f4 date YES NULL create table t10 as select case when 1 then cast('01-01-01' as datetime) when 0 then cast('01-01-01' as datetime) end as f4 from t1; desc t10; Field Type Null Key Default Extra f4 datetime YES NULL create table t11 as select if(1, cast('01-01-01' as datetime), cast('01-01-01' as date)) as f4 from t1; desc t11; Field Type Null Key Default Extra f4 datetime YES NULL create table t12 as select least(cast('01-01-01' as datetime), cast('01-01-01' as date)) as f4 from t1; desc t12; Field Type Null Key Default Extra f4 datetime YES NULL create table t13 as select ifnull(cast('01-01-01' as datetime), cast('01-01-01' as date)) as f4 from t1; desc t13; Field Type Null Key Default Extra f4 datetime YES NULL drop tables t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13; ################################################################### create table t1 (f1 time); insert into t1 set f1 = '45:44:44'; insert into t1 set f1 = '15:44:44'; select * from t1 where (convert(f1,datetime)) != 1; f1 15:44:44 Warnings: Warning 1292 Incorrect datetime value: '0000-00-00 45:44:44' drop table t1; create table t1 (a tinyint); insert into t1 values (), (), (); select sum(a) from t1 group by convert(a, datetime); sum(a) NULL drop table t1; create table t1 (id int(10) not null, cur_date datetime not null); create table t2 (id int(10) not null, cur_date date not null); insert into t1 (id, cur_date) values (1, '2007-04-25 18:30:22'); insert into t2 (id, cur_date) values (1, '2007-04-25'); explain extended select * from t1 where id in (select id from t1 as x1 where (t1.cur_date is null)); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE Warnings: Note 1276 Field or reference 'test.t1.cur_date' of SELECT #2 was resolved in SELECT #1 Note 1003 select '1' AS `id`,'2007-04-25 18:30:22' AS `cur_date` from `test`.`t1` where ('1',(select 1 from `test`.`t1` `x1` where 0)) select * from t1 where id in (select id from t1 as x1 where (t1.cur_date is null)); id cur_date explain extended select * from t2 where id in (select id from t2 as x1 where (t2.cur_date is null)); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables 2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE Warnings: Note 1276 Field or reference 'test.t2.cur_date' of SELECT #2 was resolved in SELECT #1 Note 1003 select '1' AS `id`,'2007-04-25' AS `cur_date` from `test`.`t2` where ('1',(select 1 from `test`.`t2` `x1` where 0)) select * from t2 where id in (select id from t2 as x1 where (t2.cur_date is null)); id cur_date insert into t1 (id, cur_date) values (2, '2007-04-26 18:30:22'); insert into t2 (id, cur_date) values (2, '2007-04-26'); explain extended select * from t1 where id in (select id from t1 as x1 where (t1.cur_date is null)); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where 2 DEPENDENT SUBQUERY x1 ALL NULL NULL NULL NULL 2 100.00 Using where Warnings: Note 1276 Field or reference 'test.t1.cur_date' of SELECT #2 was resolved in SELECT #1 Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`cur_date` AS `cur_date` from `test`.`t1` where (`test`.`t1`.`id`,(select 1 from `test`.`t1` `x1` where ((`test`.`t1`.`cur_date` = 0) and ((`test`.`t1`.`id`) = `test`.`x1`.`id`)))) select * from t1 where id in (select id from t1 as x1 where (t1.cur_date is null)); id cur_date explain extended select * from t2 where id in (select id from t2 as x1 where (t2.cur_date is null)); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where 2 DEPENDENT SUBQUERY x1 ALL NULL NULL NULL NULL 2 100.00 Using where Warnings: Note 1276 Field or reference 'test.t2.cur_date' of SELECT #2 was resolved in SELECT #1 Note 1003 select `test`.`t2`.`id` AS `id`,`test`.`t2`.`cur_date` AS `cur_date` from `test`.`t2` where (`test`.`t2`.`id`,(select 1 from `test`.`t2` `x1` where ((`test`.`t2`.`cur_date` = 0) and ((`test`.`t2`.`id`) = `test`.`x1`.`id`)))) select * from t2 where id in (select id from t2 as x1 where (t2.cur_date is null)); id cur_date drop table t1,t2; SELECT CAST('NULL' AS DATE) <=> CAST('2008-01-01' AS DATE) n1, CAST('2008-01-01' AS DATE) <=> CAST('NULL' AS DATE) n2, CAST('NULL' AS DATE) <=> CAST('NULL' AS DATE) n3, CAST('NULL' AS DATE) <> CAST('2008-01-01' AS DATE) n4, CAST('2008-01-01' AS DATE) <> CAST('NULL' AS DATE) n5, CAST('NULL' AS DATE) <> CAST('NULL' AS DATE) n6, CAST('NULL' AS DATE) < CAST('2008-01-01' AS DATE) n7, CAST('2008-01-01' AS DATE) < CAST('NULL' AS DATE) n8, CAST('NULL' AS DATE) < CAST('NULL' AS DATE) n9; n1 n2 n3 n4 n5 n6 n7 n8 n9 0 0 1 NULL NULL NULL NULL NULL NULL Warnings: Warning 1292 Incorrect datetime value: 'NULL' Warning 1292 Incorrect datetime value: 'NULL' Warning 1292 Incorrect datetime value: 'NULL' Warning 1292 Incorrect datetime value: 'NULL' Warning 1292 Incorrect datetime value: 'NULL' Warning 1292 Incorrect datetime value: 'NULL' Warning 1292 Incorrect datetime value: 'NULL' Warning 1292 Incorrect datetime value: 'NULL' Warning 1292 Incorrect datetime value: 'NULL' Warning 1292 Incorrect datetime value: 'NULL' End of 5.0 tests set @org_mode=@@sql_mode; create table t1 (da date default '1962-03-03 23:33:34', dt datetime default '1962-03-03'); Warnings: Note 1265 Data truncated for column 'da' at row 1 show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `da` date DEFAULT '1962-03-03', `dt` datetime DEFAULT '1962-03-03 00:00:00' ) ENGINE=MyISAM DEFAULT CHARSET=latin1 insert into t1 values (); insert into t1 values ('2007-03-23 13:49:38','2007-03-23 13:49:38'); Warnings: Note 1265 Data truncated for column 'da' at row 1 set @@sql_mode='ansi,traditional'; insert into t1 values ('2007-03-23 13:49:38','2007-03-23 13:49:38'); Warnings: Note 1265 Data truncated for column 'da' at row 1 insert into t1 set dt='2007-03-23 13:49:38',da=dt; Warnings: Note 1265 Data truncated for column 'da' at row 1 insert into t1 values ('2007-03-32','2007-03-23 13:49:38'); ERROR 22007: Incorrect date value: '2007-03-32' for column 'da' at row 1 select * from t1; da dt 1962-03-03 1962-03-03 00:00:00 2007-03-23 2007-03-23 13:49:38 2007-03-23 2007-03-23 13:49:38 2007-03-23 2007-03-23 13:49:38 drop table t1; create table t1 (da date default '1962-03-32 23:33:34', dt datetime default '1962-03-03'); ERROR 42000: Invalid default value for 'da' create table t1 (t time default '916:00:00 a'); ERROR 42000: Invalid default value for 't' set @@sql_mode= @org_mode; SELECT CAST(CAST('2006-08-10 10:11:12.0123450' AS DATETIME) AS DECIMAL(30,7)); CAST(CAST('2006-08-10 10:11:12.0123450' AS DATETIME) AS DECIMAL(30,7)) 20060810101112.0123450 Warnings: Warning 1292 Truncated incorrect datetime value: '2006-08-10 10:11:12.0123450' SELECT CAST(CAST('00000002006-000008-0000010 000010:0000011:00000012.0123450' AS DATETIME) AS DECIMAL(30,7)); CAST(CAST('00000002006-000008-0000010 000010:0000011:00000012.0123450' AS DATETIME) AS DECIMAL(30,7)) 20060810101112.0123450 Warnings: Warning 1292 Truncated incorrect datetime value: '00000002006-000008-0000010 000010:0000011:00000012.0123450' SELECT CAST(CAST('00000002006-000008-0000010 000010:0000011:00000012.012345' AS DATETIME) AS DECIMAL(30,7)); CAST(CAST('00000002006-000008-0000010 000010:0000011:00000012.012345' AS DATETIME) AS DECIMAL(30,7)) 20060810101112.0123450 SELECT CAST(CAST('2008-07-29T10:42:51.1234567' AS DateTime) AS DECIMAL(30,7)); CAST(CAST('2008-07-29T10:42:51.1234567' AS DateTime) AS DECIMAL(30,7)) 20080729104251.1234560 Warnings: Warning 1292 Truncated incorrect datetime value: '2008-07-29T10:42:51.1234567' # # Bug#59173: Failure to handle DATE(TIME) values where Year, Month or # Day is ZERO # CREATE TABLE t1 (dt1 DATETIME); INSERT INTO t1 (dt1) VALUES ('0000-00-01 00:00:01'); DELETE FROM t1 WHERE dt1 = '0000-00-01 00:00:01'; # Should be empty SELECT * FROM t1; dt1 DROP TABLE t1; End of 5.1 tests