mirror of
https://github.com/MariaDB/server.git
synced 2025-07-24 19:42:23 +03:00
Merge moonbone.local:/work/tmp_merge-5.0-mysql
into moonbone.local:/work/tmp_merge-5.1-opt-mysql BUILD/check-cpu: Auto merged include/config-netware.h: Auto merged mysql-test/r/func_time.result: Auto merged mysql-test/r/group_by.result: Auto merged mysql-test/r/join_outer.result: Auto merged mysql-test/r/ndb_condition_pushdown.result: Auto merged mysql-test/r/range.result: Auto merged mysql-test/r/select.result: Auto merged mysql-test/r/subselect.result: Auto merged mysql-test/r/type_datetime.result: Auto merged mysql-test/r/user_var.result: Auto merged mysql-test/r/view.result: Auto merged mysql-test/t/func_time.test: Auto merged mysql-test/t/range.test: Auto merged mysql-test/t/select.test: Auto merged mysql-test/t/type_datetime.test: Auto merged mysql-test/t/view.test: Auto merged sql/ha_innodb.cc: Auto merged sql/item.cc: Auto merged sql/item.h: Auto merged sql/item_func.cc: Auto merged sql/item_func.h: Auto merged sql/item_subselect.cc: Auto merged sql/item_timefunc.cc: Auto merged sql/opt_range.h: Auto merged sql/set_var.cc: Auto merged sql/sql_acl.cc: Auto merged sql/sql_class.cc: Auto merged sql/sql_delete.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_load.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_update.cc: Auto merged storage/innobase/btr/btr0btr.c: Auto merged storage/innobase/buf/buf0buf.c: Auto merged storage/innobase/dict/dict0dict.c: Auto merged storage/innobase/fil/fil0fil.c: Auto merged storage/innobase/fsp/fsp0fsp.c: Auto merged storage/innobase/include/buf0buf.ic: Auto merged storage/innobase/log/log0log.c: Auto merged storage/innobase/log/log0recv.c: Auto merged storage/innobase/os/os0file.c: Auto merged storage/innobase/row/row0sel.c: Auto merged storage/innobase/srv/srv0start.c: Auto merged storage/innobase/ut/ut0dbg.c: Auto merged tests/mysql_client_test.c: Auto merged client/mysqltest.c: Manual merge mysql-test/r/innodb_mysql.result: Manual merge mysql-test/t/innodb_mysql.test: Manual merge mysql-test/t/join_outer.test: Manual merge sql/item_cmpfunc.cc: Manual merge sql/mysql_priv.h: Manual merge sql/opt_range.cc: Manual merge sql/sql_base.cc: Manual merge storage/innobase/include/btr0cur.ic: Manual merge storage/innobase/row/row0mysql.c: Manual merge
This commit is contained in:
@ -89,6 +89,27 @@ b a
|
||||
3 3
|
||||
3 3
|
||||
DROP TABLE t1, t2, t3;
|
||||
CREATE TABLE `t1` (`id1` INT) ;
|
||||
INSERT INTO `t1` (`id1`) VALUES (1),(5),(2);
|
||||
CREATE TABLE `t2` (
|
||||
`id1` INT,
|
||||
`id2` INT NOT NULL,
|
||||
`id3` INT,
|
||||
`id4` INT NOT NULL,
|
||||
UNIQUE (`id2`,`id4`),
|
||||
KEY (`id1`)
|
||||
) ENGINE=InnoDB;
|
||||
INSERT INTO `t2`(`id1`,`id2`,`id3`,`id4`) VALUES
|
||||
(1,1,1,0),
|
||||
(1,1,2,1),
|
||||
(5,1,2,2),
|
||||
(6,1,2,3),
|
||||
(1,2,2,2),
|
||||
(1,2,1,1);
|
||||
SELECT `id1` FROM `t1` WHERE `id1` NOT IN (SELECT `id1` FROM `t2` WHERE `id2` = 1 AND `id3` = 2);
|
||||
id1
|
||||
2
|
||||
DROP TABLE t1, t2;
|
||||
create table t1m (a int) engine=myisam;
|
||||
create table t1i (a int) engine=innodb;
|
||||
create table t2m (a int) engine=myisam;
|
||||
@ -303,6 +324,25 @@ explain select distinct f1, f2 from t1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL PRIMARY 5 NULL 3 Using index for group-by; Using temporary
|
||||
drop table t1;
|
||||
CREATE TABLE t1 (id int(11) NOT NULL PRIMARY KEY, name varchar(20),
|
||||
INDEX (name)) ENGINE=InnoDB;
|
||||
CREATE TABLE t2 (id int(11) NOT NULL PRIMARY KEY, fkey int(11),
|
||||
FOREIGN KEY (fkey) REFERENCES t2(id)) ENGINE=InnoDB;
|
||||
INSERT INTO t1 VALUES (1,'A1'),(2,'A2'),(3,'B');
|
||||
INSERT INTO t2 VALUES (1,1),(2,2),(3,2),(4,3),(5,3);
|
||||
EXPLAIN
|
||||
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
|
||||
WHERE t1.name LIKE 'A%';
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index PRIMARY,name name 23 NULL 3 Using where; Using index
|
||||
1 SIMPLE t2 ref fkey fkey 5 test.t1.id 1 Using where; Using index
|
||||
EXPLAIN
|
||||
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
|
||||
WHERE t1.name LIKE 'A%' OR FALSE;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 index NULL fkey 5 NULL 5 Using index
|
||||
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.fkey 1 Using where
|
||||
DROP TABLE t1,t2;
|
||||
set storage_engine=innodb;
|
||||
CREATE TABLE t1 (a int, b int);
|
||||
insert into t1 values (1,1),(1,2);
|
||||
|
Reference in New Issue
Block a user