mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-01-18 04:53:01 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions
mariadb/mysql-test/r/null_key.result
unknown 7032486889 Fixes for valgrind 
Added optimzation for clustered index
Fixed bug in UPDATE ... ORDER BY
Fixed handling of UPDATE ... LIMIT


BitKeeper/deleted/.del-.cvsignore~7e29af89a3559f4c:
  Delete: Images/.cvsignore
BitKeeper/deleted/.del-README~d5a4e7ca3a2e87a9:
  Delete: repl-tests/README
BitKeeper/deleted/.del-run-all-tests~4deb6479a13e4568:
  Delete: repl-tests/run-all-tests
BitKeeper/deleted/.del-run.test~3dc5b9bd1e9feea5:
  Delete: repl-tests/test-repl-alter/run.test
BitKeeper/deleted/.del-run.test~4020771cff278f14:
  Delete: repl-tests/test-bad-query/run.test
BitKeeper/deleted/.del-run.test~452f2b66537404a8:
  Delete: repl-tests/test-dump/run.test
BitKeeper/deleted/.del-run.test~b1f0c1f96554df8:
  Delete: repl-tests/test-auto-inc/run.test
BitKeeper/deleted/.del-table-dump-check.master~e13afeb8c79264b5:
  Delete: repl-tests/test-dump/table-dump-check.master
BitKeeper/deleted/.del-table-dump-select.master~744acb955e33f3db:
  Delete: repl-tests/test-dump/table-dump-select.master
BitKeeper/deleted/.del-x.master~29a93ed7956c8693:
  Delete: repl-tests/test-auto-inc/x.master
BitKeeper/deleted/.del-x.master~3b248cbac9abda2b:
  Delete: repl-tests/test-bad-query/x.master
BitKeeper/deleted/.del-foo-dump-master.master~b49ae6bec1e918ee:
  Delete: repl-tests/test-repl/foo-dump-master.master
BitKeeper/deleted/.del-foo-dump-slave.master~f16ed20457d59be9:
  Delete: repl-tests/test-repl/foo-dump-slave.master
BitKeeper/deleted/.del-repl-timestamp.master.reject~3492d2b74b413771:
  Delete: repl-tests/test-repl-ts/repl-timestamp.master.reject
BitKeeper/deleted/.del-repl-timestamp.master~4b7782da5cc13161:
  Delete: repl-tests/test-repl-ts/repl-timestamp.master
BitKeeper/deleted/.del-run.test~a1e32ea1e4253af4:
  Delete: repl-tests/test-repl/run.test
BitKeeper/deleted/.del-run.test~ce5e626c91b760ec:
  Delete: repl-tests/test-repl-ts/run.test
BitKeeper/deleted/.del-sum-wlen-master.master~1a5ea625c79e978:
  Delete: repl-tests/test-repl/sum-wlen-master.master
BitKeeper/deleted/.del-sum-wlen-slave.master~f016d98833433084:
  Delete: repl-tests/test-repl/sum-wlen-slave.master
BitKeeper/deleted/.del-test.master~5829e7b3770179db:
  Delete: repl-tests/test-repl-alter/test.master
BitKeeper/deleted/.del-master-slave.inc~6775f6ae10137c39:
  Delete: repl-tests/include/master-slave.inc
include/my_global.h:
  Fix for purify/valgrind
myisam/mi_info.c:
  Updated comment
mysql-test/r/group_by.result:
  New test results
mysql-test/r/innodb.result:
  New test results
mysql-test/r/join_outer.result:
  New test results
mysql-test/r/multi_update.result:
  New test results
mysql-test/r/null_key.result:
  New test results
mysql-test/r/update.result:
  New test results
mysql-test/t/group_by.test:
  Added extra explain to 'suspicious' test.
mysql-test/t/innodb.test:
  Added test for UPDATE ... ORDER BY
mysql-test/t/join_outer.test:
  Changed test to be repeatable
mysql-test/t/multi_update.test:
  Slight change of test to catch more bugs
mysql-test/t/update.test:
  Better test for UPDATE ... ORDER BY
sql/field.cc:
  Simple optimization
sql/ha_heap.h:
  Added optimzation for clustered index
sql/ha_innodb.cc:
  Added optimzation for clustered index
sql/ha_innodb.h:
  Added optimzation for clustered index
sql/handler.h:
  Added optimzation for clustered index
sql/item_sum.cc:
  Removed some usage of current_thd
sql/mysqld.cc:
  Fix bug when compiling for purify/valgrind
sql/opt_range.cc:
  Added optimzation for clustered index
sql/records.cc:
  Fixed comment
sql/sql_list.h:
  Fixed comment
sql/sql_select.cc:
  Removed some usage of current_thd
sql/sql_select.h:
  Removed some usage of current_thd
sql/sql_union.cc:
  Removed some usage of current_thd
sql/sql_update.cc:
  Fixed bug in UPDATE ... ORDER BY
  Fixed handling of UPDATE ... LIMIT
support-files/my-huge.cnf.sh:
  Added default size for query cache
support-files/my-large.cnf.sh:
  Added default size for query cache
2003-04-23 21:52:16 +03:00

263 lines
8.1 KiB
Text
Raw Blame History

drop table if exists t1;
create table t1 (a int, b int not null,unique key (a,b),index(b)) type=myisam;
insert ignore into t1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(null,7),(9,9),(8,8),(7,7),(null,9),(null,9),(6,6);
explain select * from t1 where a is null;
table type possible_keys key key_len ref rows Extra
t1 ref a a 5 const 3 Using where; Using index
explain select * from t1 where a is null and b = 2;
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 9 const,const 1 Using where; Using index
explain select * from t1 where a is null and b = 7;
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 9 const,const 1 Using where; Using index
explain select * from t1 where a=2 and b = 2;
table type possible_keys key key_len ref rows Extra
t1 const a,b a 9 const,const 1
explain select * from t1 where a<=>b limit 2;
table type possible_keys key key_len ref rows Extra
t1 index NULL a 9 NULL 12 Using where; Using index
explain select * from t1 where (a is null or a > 0 and a < 3) and b < 5 limit 3;
table type possible_keys key key_len ref rows Extra
t1 range a,b a 9 NULL 3 Using where; Using index
explain select * from t1 where (a is null or a = 7) and b=7;
table type possible_keys key key_len ref rows Extra
t1 ref a,b b 4 const 2 Using where
explain select * from t1 where (a is null and b>a) or a is null and b=7 limit 2;
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 Using where; Using index
explain select * from t1 where a is null and b=9 or a is null and b=7 limit 3;
table type possible_keys key key_len ref rows Extra
t1 range a,b a 9 NULL 2 Using where; Using index
explain select * from t1 where a > 1 and a < 3 limit 1;
table type possible_keys key key_len ref rows Extra
t1 range a a 5 NULL 1 Using where; Using index
explain select * from t1 where a > 8 and a < 9;
table type possible_keys key key_len ref rows Extra
t1 range a a 5 NULL 1 Using where; Using index
select * from t1 where a is null;
a b
NULL 7
NULL 9
NULL 9
select * from t1 where a is null and b = 7;
a b
NULL 7
select * from t1 where a<=>b limit 2;
a b
1 1
2 2
select * from t1 where (a is null or a > 0 and a < 3) and b < 5 limit 3;
a b
1 1
2 2
select * from t1 where (a is null or a > 0 and a < 3) and b > 7 limit 3;
a b
NULL 9
NULL 9
select * from t1 where (a is null or a = 7) and b=7;
a b
NULL 7
7 7
select * from t1 where a is null and b=9 or a is null and b=7 limit 3;
a b
NULL 7
NULL 9
NULL 9
alter table t1 modify b blob not null, add c int not null, drop key a, add unique key (a,b(20),c), drop key b, add key (b(10));
explain select * from t1 where a is null and b = 2;
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 Using where
explain select * from t1 where a is null and b = 2 and c=0;
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 Using where
explain select * from t1 where a is null and b = 7 and c=0;
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 Using where
explain select * from t1 where a=2 and b = 2;
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 1 Using where
explain select * from t1 where a<=>b limit 2;
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 12 Using where
explain select * from t1 where (a is null or a > 0 and a < 3) and b < 5 and c=0 limit 3;
table type possible_keys key key_len ref rows Extra
t1 range a,b a 5 NULL 5 Using where
explain select * from t1 where (a is null or a = 7) and b=7 and c=0;
table type possible_keys key key_len ref rows Extra
t1 ALL a,b NULL NULL NULL 12 Using where
explain select * from t1 where (a is null and b>a) or a is null and b=7 limit 2;
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 Using where
explain select * from t1 where a is null and b=9 or a is null and b=7 limit 3;
table type possible_keys key key_len ref rows Extra
t1 ref a,b a 5 const 3 Using where
explain select * from t1 where a > 1 and a < 3 limit 1;
table type possible_keys key key_len ref rows Extra
t1 range a a 5 NULL 1 Using where
explain select * from t1 where a is null and b=7 or a > 1 and a < 3 limit 1;
table type possible_keys key key_len ref rows Extra
t1 range a,b a 5 NULL 4 Using where
explain select * from t1 where a > 8 and a < 9;
table type possible_keys key key_len ref rows Extra
t1 range a a 5 NULL 1 Using where
explain select * from t1 where b like "6%";
table type possible_keys key key_len ref rows Extra
t1 range b b 12 NULL 1 Using where
select * from t1 where a is null;
a b c
NULL 7 0
NULL 9 0
NULL 9 0
select * from t1 where a is null and b = 7 and c=0;
a b c
NULL 7 0
select * from t1 where a<=>b limit 2;
a b c
1 1 0
2 2 0
select * from t1 where (a is null or a > 0 and a < 3) and b < 5 limit 3;
a b c
1 1 0
2 2 0
select * from t1 where (a is null or a > 0 and a < 3) and b > 7 limit 3;
a b c
NULL 9 0
NULL 9 0
select * from t1 where (a is null or a = 7) and b=7 and c=0;
a b c
NULL 7 0
7 7 0
select * from t1 where a is null and b=9 or a is null and b=7 limit 3;
a b c
NULL 7 0
NULL 9 0
NULL 9 0
select * from t1 where b like "6%";
a b c
6 6 0
drop table t1;
DROP TABLE IF EXISTS t1,t2;
CREATE TABLE t1 (
id int(10) unsigned NOT NULL auto_increment,
uniq_id int(10) unsigned default NULL,
PRIMARY KEY (id),
UNIQUE KEY idx1 (uniq_id)
) TYPE=MyISAM;
CREATE TABLE t2 (
id int(10) unsigned NOT NULL auto_increment,
uniq_id int(10) unsigned default NULL,
PRIMARY KEY (id)
) TYPE=MyISAM;
INSERT INTO t1 VALUES (1,NULL),(2,NULL),(3,1),(4,2),(5,NULL),(6,NULL),(7,3),(8,4),(9,NULL),(10,NULL);
INSERT INTO t2 VALUES (1,NULL),(2,NULL),(3,1),(4,2),(5,NULL),(6,NULL),(7,3),(8,4),(9,NULL),(10,NULL);
explain select id from t1 where uniq_id is null;
table type possible_keys key key_len ref rows Extra
t1 ref idx1 idx1 5 const 1 Using where
explain select id from t1 where uniq_id =1;
table type possible_keys key key_len ref rows Extra
t1 const idx1 idx1 5 const 1
UPDATE t1 SET id=id+100 where uniq_id is null;
UPDATE t2 SET id=id+100 where uniq_id is null;
select id from t1 where uniq_id is null;
id
101
102
105
106
109
110
select id from t2 where uniq_id is null;
id
101
102
105
106
109
110
DELETE FROM t1 WHERE uniq_id IS NULL;
DELETE FROM t2 WHERE uniq_id IS NULL;
SELECT * FROM t1 ORDER BY uniq_id, id;
id uniq_id
3 1
4 2
7 3
8 4
SELECT * FROM t2 ORDER BY uniq_id, id;
id uniq_id
3 1
4 2
7 3
8 4
DROP table t1,t2;
CREATE TABLE `t1` (
`order_id` char(32) NOT NULL default '',
`product_id` char(32) NOT NULL default '',
`product_type` int(11) NOT NULL default '0',
PRIMARY KEY (`order_id`,`product_id`,`product_type`)
) TYPE=MyISAM;
CREATE TABLE `t2` (
`order_id` char(32) NOT NULL default '',
`product_id` char(32) NOT NULL default '',
`product_type` int(11) NOT NULL default '0',
PRIMARY KEY (`order_id`,`product_id`,`product_type`)
) TYPE=MyISAM;
INSERT INTO t1 (order_id, product_id, product_type) VALUES
('3d7ce39b5d4b3e3d22aaafe9b633de51',1206029, 3),
('3d7ce39b5d4b3e3d22aaafe9b633de51',5880836, 3),
('9d9aad7764b5b2c53004348ef8d34500',2315652, 3);
INSERT INTO t2 (order_id, product_id, product_type) VALUES
('9d9aad7764b5b2c53004348ef8d34500',2315652, 3);
select t1.* from t1
left join t2 using(order_id, product_id, product_type)
where t2.order_id=NULL;
order_id product_id product_type
select t1.* from t1
left join t2 using(order_id, product_id, product_type)
where t2.order_id is NULL;
order_id product_id product_type
3d7ce39b5d4b3e3d22aaafe9b633de51 1206029 3
3d7ce39b5d4b3e3d22aaafe9b633de51 5880836 3
drop table t1,t2;
create table t1 (id int);
insert into t1 values (null), (0);
create table t2 (id int);
insert into t2 values (null);
select * from t1, t2 where t1.id = t2.id;
id id
alter table t1 add key id (id);
select * from t1, t2 where t1.id = t2.id;
id id
drop table t1,t2;
create table t1 (
id integer,
id2 integer not null,
index (id),
index (id2)
);
insert into t1 values(null,null),(1,1);
select * from t1;
id id2
NULL 0
1 1
select * from t1 where id <=> null;
id id2
NULL 0
select * from t1 where id <=> null or id > 0;
id id2
NULL 0
1 1
select * from t1 where id is null or id > 0;
id id2
NULL 0
1 1
select * from t1 where id2 <=> null or id2 > 0;
id id2
1 1
select * from t1 where id2 is null or id2 > 0;
id id2
1 1
delete from t1 where id <=> NULL;
select * from t1;
id id2
1 1
drop table t1;
Reference in a new issue View git blame Copy permalink