-- source include/have_innodb.inc --disable_warnings drop table if exists t1,t2; --enable_warnings # BUG#16798: Uninitialized row buffer reads in ref-or-null optimizer # (repeatable only w/innodb). create table t1 ( c_id int(11) not null default '0', org_id int(11) default null, unique key contacts$c_id (c_id), key contacts$org_id (org_id) ) engine=innodb; insert into t1 values (2,null),(120,null),(141,null),(218,7), (128,1), (151,2),(234,2),(236,2),(243,2),(255,2),(259,2),(232,3),(235,3),(238,3), (246,3),(253,3),(269,3),(285,3),(291,3),(293,3),(131,4),(230,4),(231,4); create table t2 ( slai_id int(11) not null default '0', owner_tbl int(11) default null, owner_id int(11) default null, sla_id int(11) default null, inc_web int(11) default null, inc_email int(11) default null, inc_chat int(11) default null, inc_csr int(11) default null, inc_total int(11) default null, time_billed int(11) default null, activedate timestamp null default null, expiredate timestamp null default null, state int(11) default null, sla_set int(11) default null, unique key t2$slai_id (slai_id), key t2$owner_id (owner_id), key t2$sla_id (sla_id) ) engine=innodb; insert into t2(slai_id, owner_tbl, owner_id, sla_id) values (1,3,1,1), (3,3,10,2), (4,3,3,6), (5,3,2,5), (6,3,8,3), (7,3,9,7), (8,3,6,8), (9,3,4,9), (10,3,5,10), (11,3,11,11), (12,3,7,12); flush tables; select si.slai_id from t1 c join t2 si on ((si.owner_tbl = 3 and si.owner_id = c.org_id) or ( si.owner_tbl = 2 and si.owner_id = c.c_id)) where c.c_id = 218 and expiredate is null; select * from t1 where org_id is null; select si.slai_id from t1 c join t2 si on ((si.owner_tbl = 3 and si.owner_id = c.org_id) or ( si.owner_tbl = 2 and si.owner_id = c.c_id)) where c.c_id = 218 and expiredate is null; drop table t1, t2; # # Bug #12882 min/max inconsistent on empty table # --disable_warnings create table t1m (a int) engine=myisam; create table t1i (a int) engine=innodb; create table t2m (a int) engine=myisam; create table t2i (a int) engine=innodb; --enable_warnings insert into t2m values (5); insert into t2i values (5); # test with MyISAM select min(a) from t1m; select min(7) from t1m; select min(7) from DUAL; explain select min(7) from t2m join t1m; select min(7) from t2m join t1m; select max(a) from t1m; select max(7) from t1m; select max(7) from DUAL; explain select max(7) from t2m join t1m; select max(7) from t2m join t1m; select 1, min(a) from t1m where a=99; select 1, min(a) from t1m where 1=99; select 1, min(1) from t1m where a=99; select 1, min(1) from t1m where 1=99; select 1, max(a) from t1m where a=99; select 1, max(a) from t1m where 1=99; select 1, max(1) from t1m where a=99; select 1, max(1) from t1m where 1=99; # test with InnoDB select min(a) from t1i; select min(7) from t1i; select min(7) from DUAL; explain select min(7) from t2i join t1i; select min(7) from t2i join t1i; select max(a) from t1i; select max(7) from t1i; select max(7) from DUAL; explain select max(7) from t2i join t1i; select max(7) from t2i join t1i; select 1, min(a) from t1i where a=99; select 1, min(a) from t1i where 1=99; select 1, min(1) from t1i where a=99; select 1, min(1) from t1i where 1=99; select 1, max(a) from t1i where a=99; select 1, max(a) from t1i where 1=99; select 1, max(1) from t1i where a=99; select 1, max(1) from t1i where 1=99; # mixed MyISAM/InnoDB test explain select count(*), min(7), max(7) from t1m, t1i; select count(*), min(7), max(7) from t1m, t1i; explain select count(*), min(7), max(7) from t1m, t2i; select count(*), min(7), max(7) from t1m, t2i; explain select count(*), min(7), max(7) from t2m, t1i; select count(*), min(7), max(7) from t2m, t1i; drop table t1m, t1i, t2m, t2i;