mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 03:52:35 +01:00
9608773f75
This essentially reverts commit 4e89ec6692
and only disables InnoDB persistent statistics for tests where it is
desirable. By design, InnoDB persistent statistics will not be updated
except by ANALYZE TABLE or by STATS_AUTO_RECALC.
The internal transactions that update persistent InnoDB statistics
in background tasks (with innodb_stats_auto_recalc=ON) may cause
nondeterministic query plans or interfere with some tests that deal
with other InnoDB internals, such as the purge of transaction history.
286 lines
7.1 KiB
Text
286 lines
7.1 KiB
Text
SET @@session.default_storage_engine = 'InnoDB';
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SET @save_innodb_stats_persistent=@@GLOBAL.innodb_stats_persistent;
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SET GLOBAL innodb_stats_persistent=0;
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create table t1 (a int not null,
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b int as (-a),
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c int as (-a) persistent);
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insert into t1 (a) values (1), (1), (2), (2), (3);
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create view v1 (d,e) as select abs(b), abs(c) from t1;
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select d,e from v1;
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d e
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1 1
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1 1
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2 2
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2 2
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3 3
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select is_updatable from information_schema.views where table_name='v1';
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is_updatable
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NO
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explain extended select d,e from v1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00
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Warnings:
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Note 1003 select abs(`test`.`t1`.`b`) AS `d`,abs(`test`.`t1`.`c`) AS `e` from `test`.`t1`
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create algorithm=temptable view v2 (d,e) as select abs(b), abs(c) from t1;
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show create view v2;
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View Create View character_set_client collation_connection
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v2 CREATE ALGORITHM=TEMPTABLE DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v2` AS select abs(`t1`.`b`) AS `d`,abs(`t1`.`c`) AS `e` from `t1` latin1 latin1_swedish_ci
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select d,e from v2;
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d e
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1 1
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1 1
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2 2
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2 2
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3 3
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explain extended select d,e from v2;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 5 100.00
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2 DERIVED t1 ALL NULL NULL NULL NULL 5 100.00
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Warnings:
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Note 1003 /* select#1 */ select `v2`.`d` AS `d`,`v2`.`e` AS `e` from `test`.`v2`
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create view v3 (d,e) as select d*2, e*2 from v1;
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select * from v3;
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d e
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2 2
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2 2
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4 4
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4 4
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6 6
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explain extended select * from v3;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00
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Warnings:
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Note 1003 select abs(`test`.`t1`.`b`) * 2 AS `d`,abs(`test`.`t1`.`c`) * 2 AS `e` from `test`.`t1`
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drop view v1,v2,v3;
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drop table t1;
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create table t1 (a int not null,
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b int as (-a),
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c int as (-a) persistent);
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insert into t1 (a) values (1), (2), (3), (1), (2), (3);
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create view v1 as select distinct b from t1;
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select * from v1;
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b
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-1
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-2
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-3
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explain select * from v1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6
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2 DERIVED t1 ALL NULL NULL NULL NULL 6 Using temporary
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select * from t1;
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a b c
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1 -1 -1
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2 -2 -2
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3 -3 -3
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1 -1 -1
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2 -2 -2
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3 -3 -3
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drop view v1;
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create view v1 as select distinct c from t1;
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select * from v1;
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c
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-1
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-2
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-3
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explain select * from v1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6
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2 DERIVED t1 ALL NULL NULL NULL NULL 6 Using temporary
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select * from t1;
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a b c
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1 -1 -1
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2 -2 -2
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3 -3 -3
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1 -1 -1
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2 -2 -2
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3 -3 -3
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drop view v1;
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drop table t1;
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create table t1 (a int not null,
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b int as (-a),
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c int as (-a) persistent);
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insert into t1 (a) values (1), (2), (3), (4);
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create view v1 as select b+1 from t1 order by 1 desc limit 2;
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select * from v1;
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b+1
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0
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-1
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MariaDB-5.3: the following EXPLAIN produces incorrect #rows for table t1.
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MariaDB-5.3: this is expected to go away when FROM subquery optimizations are pushed
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explain select * from v1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
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2 DERIVED t1 ALL NULL NULL NULL NULL 4 Using filesort
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drop view v1;
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create view v1 as select c+1 from t1 order by 1 desc limit 2;
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select * from v1;
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c+1
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0
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-1
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MariaDB-5.3: the following EXPLAIN produces incorrect #rows for table t1.
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MariaDB-5.3: this is expected to go away when FROM subquery optimizations are pushed
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explain select * from v1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
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2 DERIVED t1 ALL NULL NULL NULL NULL 4 Using filesort
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drop view v1;
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drop table t1;
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create table t1 (a int,
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b int,
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c int as (-a),
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d int as (-a) persistent,
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primary key(a));
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insert into t1 (a,b) values (10,2), (20,3), (30,4), (40,5), (50,10);
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create view v1 (a,e,f,g) as select a, b+1,c+1,d+1 from t1;
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update v1 set a=a+e;
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select * from v1;
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a e f g
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13 3 -12 -12
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24 4 -23 -23
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35 5 -34 -34
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46 6 -45 -45
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61 11 -60 -60
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select * from t1;
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a b c d
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13 2 -13 -13
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24 3 -24 -24
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35 4 -35 -35
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46 5 -46 -46
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61 10 -61 -61
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delete from v1;
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select * from v1;
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a e f g
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select * from t1;
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a b c d
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insert into v1 (a,e) values (60,15);
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ERROR HY000: The target table v1 of the INSERT is not insertable-into
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drop table t1;
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drop view v1;
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SET @save_optimizer_switch=@@optimizer_switch;
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SET optimizer_switch='outer_join_with_cache=off';
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create table t1 (a int,
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b int as (-a),
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c int as (-a) persistent,
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primary key(a));
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insert into t1 (a) values (1), (2), (3);
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create view v1 (x,y,z) as select a,b,c from t1 where b < -1;
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select t1.a, v1.x, v1.y, v1.z from t1 left join v1 on (t1.b= v1.y);
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a x y z
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1 NULL NULL NULL
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2 2 -2 -2
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3 3 -3 -3
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drop view v1;
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create view v1 (x,y,z) as select a,b,c from t1 where c < -1;
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select t1.a, v1.x, v1.y, v1.z from t1 left join v1 on (t1.c= v1.z);
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a x y z
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1 NULL NULL NULL
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2 2 -2 -2
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3 3 -3 -3
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drop view v1;
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drop table t1;
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SET optimizer_switch=@save_optimizer_switch;
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create table t1 (a1 int,
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b1 int as (-a1),
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c1 int as (-a1) persistent);
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create table t2 (a2 int,
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b2 int as (-a2),
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c2 int as (-a2) persistent);
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insert into t1 (a1) values (1), (2);
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insert into t2 (a2) values (2), (3);
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create view v1 as select * from t1,t2 union all select * from t1,t2;
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select * from v1;
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a1 b1 c1 a2 b2 c2
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1 -1 -1 2 -2 -2
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2 -2 -2 2 -2 -2
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1 -1 -1 3 -3 -3
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2 -2 -2 3 -3 -3
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1 -1 -1 2 -2 -2
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2 -2 -2 2 -2 -2
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1 -1 -1 3 -3 -3
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2 -2 -2 3 -3 -3
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drop view v1;
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drop table t1, t2;
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create table t1 (a int,
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b int as (-a),
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c int as (-a) persistent);
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create table t2 like t1;
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create view v1 as select a,b,c from t1;
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create view v2 as select a,b,c from t2 where b in (select b from v1);
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show create view v2;
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View Create View character_set_client collation_connection
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v2 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v2` AS select `t2`.`a` AS `a`,`t2`.`b` AS `b`,`t2`.`c` AS `c` from `t2` where `t2`.`b` in (select `v1`.`b` from `v1`) latin1 latin1_swedish_ci
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drop view v2, v1;
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drop table t1, t2;
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create table t1 (a int,
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b int as (-a),
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c int as (-a) persistent);
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insert into t1 (a) values (1),(1),(2),(2),(3),(3);
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create view v1 as select b from t1;
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select distinct b from v1;
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b
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-1
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-2
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-3
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select distinct b from v1 limit 2;
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b
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-1
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-2
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select distinct b from t1 limit 2;
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b
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-1
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-2
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prepare stmt1 from "select distinct b from v1 limit 2";
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execute stmt1;
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b
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-1
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-2
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execute stmt1;
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b
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-1
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-2
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deallocate prepare stmt1;
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drop view v1;
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create view v1 as select c from t1;
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select distinct c from v1;
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c
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-1
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-2
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-3
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select distinct c from v1 limit 2;
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c
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-1
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-2
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select distinct c from t1 limit 2;
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c
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-1
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-2
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prepare stmt1 from "select distinct c from v1 limit 2";
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execute stmt1;
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c
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-1
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-2
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execute stmt1;
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c
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-1
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-2
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deallocate prepare stmt1;
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drop view v1;
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drop table t1;
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create table t1 (a int,
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b int as (-a),
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c int as (-a) persistent);
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create view v1 as select * from t1 where b > -2 && c >-2 with check option;
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insert into v1 (a) values (1);
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insert into v1 (a) values (3);
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ERROR 44000: CHECK OPTION failed `test`.`v1`
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insert ignore into v1 (a) values (2),(3),(0);
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Warnings:
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Warning 1369 CHECK OPTION failed `test`.`v1`
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Warning 1369 CHECK OPTION failed `test`.`v1`
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select * from t1;
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a b c
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1 -1 -1
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0 0 0
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drop view v1;
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drop table t1;
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SET GLOBAL innodb_stats_persistent=@save_innodb_stats_persistent;
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