mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 12:02:42 +01:00
488 lines
11 KiB
Text
488 lines
11 KiB
Text
--source include/have_innodb.inc
|
|
--source include/default_optimizer_switch.inc
|
|
--source include/have_sequence.inc
|
|
|
|
--echo #
|
|
--echo # MDEV-16917: do not use splitting for derived with join cache
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (
|
|
n1 int(10) NOT NULL,
|
|
n2 int(10) NOT NULL,
|
|
c1 char(1) NOT NULL,
|
|
KEY c1 (c1),
|
|
KEY n1_c1_n2 (n1,c1,n2)
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (0, 2, 'a'), (1, 3, 'a');
|
|
insert into t1 select seq+1,seq+2,'c' from seq_1_to_1000;
|
|
|
|
ANALYZE TABLE t1;
|
|
|
|
Let $q=
|
|
SELECT t1.n1 FROM t1, (SELECT n1, n2 FROM t1 WHERE c1 = 'a' GROUP BY n1) as t
|
|
WHERE t.n1 = t1.n1 AND t.n2 = t1.n2 AND c1 = 'a' GROUP BY n1;
|
|
|
|
eval EXPLAIN $q;
|
|
eval $q;
|
|
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # MDEV-17211: splittable materialized derived joining 3 tables with
|
|
--echo # GROUP BY list containing fields from 2 of them
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (
|
|
id1 int, i1 int, id2 int,
|
|
PRIMARY KEY (id1), KEY (i1), KEY (id2)
|
|
) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (1,1,1);
|
|
|
|
CREATE TABLE t2 (id2 int, i2 int) ENGINE=InnoDB;
|
|
INSERT INTO t2 VALUES (1, 1);
|
|
|
|
CREATE TABLE t3 (id3 int, i3 int, PRIMARY KEY (id3)) ENGINE=InnoDB;
|
|
INSERT INTO t3 VALUES (1,1);
|
|
|
|
let $q=
|
|
SELECT id3
|
|
FROM (SELECT t3.id3, t2.i2, t1.id2 FROM t3,t1,t2
|
|
WHERE t3.i3=t1.id1 AND t2.id2=t1.id2
|
|
GROUP BY t3.id3, t1.id2) AS t,
|
|
t2
|
|
WHERE t2.id2=t.id2;
|
|
|
|
eval EXPLAIN $q;
|
|
eval $q;
|
|
|
|
DROP TABLE t1,t2,t3;
|
|
|
|
--echo #
|
|
--echo # Bug mdev-17381: equi-join of derived table with join_cache_level=4
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (
|
|
id int NOT NULL,
|
|
amount decimal DEFAULT NULL,
|
|
PRIMARY KEY (id)
|
|
) ENGINE=INNODB;
|
|
|
|
CREATE TABLE t2 (
|
|
id int NOT NULL,
|
|
name varchar(50) DEFAULT NULL,
|
|
PRIMARY KEY (id)
|
|
) ENGINE=INNODB;
|
|
|
|
INSERT INTO t1 VALUES
|
|
(1, 10.0000), (2, 20.0000), (3, 30.0000), (4, 40.0000),
|
|
(5, NULL), (6, NULL), (7, 70.0000), (8, 80.0000);
|
|
|
|
INSERT INTO t2 VALUES
|
|
(1,'A'), (2,'B'), (3,'C'), (4,'D'), (5, NULL), (6, NULL),
|
|
(7,'E'), (8,'F'), (9,'G'), (10,'H'), (11, NULL), (12, NULL);
|
|
|
|
set join_cache_level=4;
|
|
|
|
let $q=
|
|
SELECT t2.id,t2.name,t.total_amt
|
|
FROM t2
|
|
LEFT JOIN
|
|
(SELECT id, sum(amount) total_amt FROM t1 GROUP BY id) AS t
|
|
ON t2.id=t.id
|
|
WHERE t2.id < 3;
|
|
|
|
eval $q;
|
|
eval EXPLAIN $q;
|
|
|
|
set join_cache_level=default;
|
|
|
|
DROP TABLE t1,t2;
|
|
|
|
--echo #
|
|
--echo # Bug mdev-18467: join of grouping view and a base table as inner operand
|
|
--echo # of left join with on condition containing impossible range
|
|
--echo #
|
|
|
|
create table t1 (f1 int, f2 int, key(f2)) engine=InnoDB;
|
|
insert into t1 values (3,33), (7,77), (1,11);
|
|
|
|
create table t2 (f1 int, f2 int, primary key (f1)) engine=InnoDB;
|
|
insert into t2 values (3,33), (9,99), (1,11);
|
|
|
|
create view v1 as
|
|
select f1, max(f2) as f2 from t2 group by f1;
|
|
|
|
let $q=
|
|
select t.f2
|
|
from t1
|
|
left join
|
|
(v1 join t1 as t on v1.f1=t.f1 and t.f2 = null)
|
|
on t1.f1=t.f1;
|
|
|
|
eval $q;
|
|
eval explain $q;
|
|
eval set statement optimizer_switch='split_materialized=off' for explain $q;
|
|
|
|
drop view v1;
|
|
|
|
drop table t1,t2;
|
|
|
|
--echo #
|
|
--echo # MDEV-23723: Crash when test_if_skip_sort_order() is checked for derived table subject to split
|
|
--echo #
|
|
CREATE TABLE t1 (a INT, b INT, KEY (a), KEY (a,b)) ENGINE=InnoDB;
|
|
CREATE TABLE t2 (c INT, KEY (c)) ENGINE=InnoDB;
|
|
|
|
SELECT * FROM t1 t1a JOIN t1 t1b;
|
|
|
|
INSERT INTO t2 VALUES (1),(2);
|
|
INSERT INTO t1 VALUES (1,2),(3,4),(5,6),(7,8),(9,10),(11,12);
|
|
|
|
let $query=
|
|
EXPLAIN
|
|
SELECT *
|
|
FROM
|
|
t1 JOIN
|
|
(SELECT t1.a, t1.b FROM t1, t2 WHERE t1.b = t2.c GROUP BY t1.a, t1.b) as dt
|
|
WHERE
|
|
t1.a = dt.a;
|
|
|
|
eval set statement optimizer_switch='split_materialized=off' for $query;
|
|
eval set statement optimizer_switch='split_materialized=on' for $query;
|
|
|
|
DROP TABLE t1, t2;
|
|
|
|
--echo #
|
|
--echo # Bug mdev-25714: usage non-splitting covering index is cheaper than
|
|
--echo # usage of the best splitting index for one group
|
|
--echo #
|
|
|
|
create table t1 (
|
|
id int not null, itemid int not null, index idx (itemid)
|
|
) engine=innodb;
|
|
insert into t1 values (1, 2), (2,2), (4,2), (4,2), (0,3), (3,3);
|
|
create table t2 (id int not null) engine=innodb;
|
|
insert into t2 values (2);
|
|
create table t3 (
|
|
id int not null, itemid int not null, userid int not null, primary key (id),
|
|
index idx1 (userid, itemid), index idx2 (itemid)
|
|
) engine innodb;
|
|
insert into t3 values (1,1,1), (2,1,1), (3,2,1), (4,2,1), (5,3,1);
|
|
set use_stat_tables='never';
|
|
set optimizer_use_condition_selectivity=1;
|
|
analyze table t1,t2,t3;
|
|
|
|
let $q=
|
|
select t1.id, t1.itemid, dt.id, t2.id
|
|
from t1,
|
|
(select itemid, max(id) as id from t3 where userid = 1 group by itemid) dt,
|
|
t2
|
|
where t1.id = dt.id and t1.itemid = dt.itemid and t2.id=t1.itemid;
|
|
|
|
set optimizer_switch='split_materialized=on';
|
|
eval explain $q;
|
|
eval $q;
|
|
|
|
set optimizer_switch='split_materialized=off';
|
|
eval explain $q;
|
|
eval $q;
|
|
|
|
drop table t1,t2,t3;
|
|
set optimizer_switch='split_materialized=default';
|
|
set use_stat_tables=default;
|
|
set optimizer_use_condition_selectivity=default;
|
|
|
|
--echo #
|
|
--echo # MDEV-26337: subquery with groupby and ROLLUP returns incorrect results
|
|
--echo # (The testcase is taken from testcase for MDEV-13389 due to it being
|
|
--echo # much smaller)
|
|
--echo #
|
|
|
|
create table t3 (a int, b int, c char(127), index idx_b(b)) engine=myisam;
|
|
insert into t3 values
|
|
(8,11,'aa'), (5,15,'cc'), (1,14,'bb'), (2,12,'aa'), (7,17,'cc'),
|
|
(7,18,'aa'), (2,11,'aa'), (7,10,'bb'), (3,11,'dd'), (4,12,'ee'),
|
|
(5,14,'dd'), (9,12,'ee');
|
|
create table t4 (a int, b int, c char(127), index idx(a,c)) engine=myisam;
|
|
insert into t4 values
|
|
(7,10,'cc'), (1,20,'aa'), (2,23,'bb'), (7,18,'cc'), (1,30,'bb'),
|
|
(4,71,'xx'), (3,15,'aa'), (7,82,'aa'), (8,12,'dd'), (4,15,'aa'),
|
|
(11,33,'yy'), (10,42,'zz'), (4,53,'xx'), (10,17,'yy'), (7,12,'cc'),
|
|
(8,20,'dd'), (7,32,'bb'), (1,50,'aa'), (3,40,'bb'), (3,77,'aa');
|
|
insert into t4 select a+10, b+10, concat(c,'f') from t4;
|
|
analyze table t3,t4;
|
|
|
|
--echo # This should use a plan with LATERAL DERIVED:
|
|
explain select t3.a,t3.c,t.max,t.min
|
|
from t3 join
|
|
(select a, c, max(b) max, min(b) min from t4 group by a,c) t
|
|
on t3.a=t.a and t3.c=t.c
|
|
where t3.b > 15;
|
|
|
|
--echo # ... and if one adds WITH ROLLUP, then LATERAL DERIVED is no longer used:
|
|
explain select t3.a,t3.c,t.max,t.min
|
|
from t3 join
|
|
(select a, c, max(b) max, min(b) min from t4 group by a,c with rollup) t
|
|
on t3.a=t.a and t3.c=t.c
|
|
where t3.b > 15;
|
|
|
|
drop table t3, t4;
|
|
|
|
--echo # End of 10.3 tests
|
|
|
|
--source include/have_sequence.inc
|
|
|
|
--echo #
|
|
--echo # MDEV-26301: Split optimization refills temporary table too many times
|
|
--echo #
|
|
|
|
# 5 values
|
|
create table t1(a int, b int);
|
|
insert into t1 select seq,seq from seq_1_to_5;
|
|
|
|
# 5 value groups of size 2 each
|
|
create table t2(a int, b int, key(a));
|
|
insert into t2
|
|
select A.seq,B.seq from seq_1_to_25 A, seq_1_to_2 B;
|
|
|
|
# 5 value groups of size 3 each
|
|
create table t3(a int, b int, key(a));
|
|
insert into t3
|
|
select A.seq,B.seq from seq_1_to_5 A, seq_1_to_3 B;
|
|
|
|
analyze table t1,t2,t3 persistent for all;
|
|
|
|
explain
|
|
select * from
|
|
(t1 left join t2 on t2.a=t1.b) left join t3 on t3.a=t1.b;
|
|
|
|
# Now, create tables for Groups.
|
|
|
|
create table t10 (
|
|
grp_id int,
|
|
col1 int,
|
|
key(grp_id)
|
|
);
|
|
|
|
# 100 groups of 100 values each
|
|
insert into t10
|
|
select
|
|
A.seq,
|
|
B.seq
|
|
from
|
|
seq_1_to_100 A,
|
|
seq_1_to_100 B;
|
|
|
|
# and X10 multiplier
|
|
|
|
create table t11 (
|
|
col1 int,
|
|
col2 int
|
|
);
|
|
insert into t11
|
|
select A.seq, A.seq from seq_1_to_10 A;
|
|
|
|
analyze table t10,t11 persistent for all;
|
|
|
|
let $q1=
|
|
select * from
|
|
(
|
|
(t1 left join t2 on t2.a=t1.b)
|
|
left join t3 on t3.a=t1.b
|
|
) left join (select grp_id, count(*)
|
|
from t10 left join t11 on t11.col1=t10.col1
|
|
group by grp_id) T on T.grp_id=t1.b;
|
|
|
|
eval
|
|
explain $q1;
|
|
|
|
--echo # The important part in the below output is:
|
|
--echo # "lateral": 1,
|
|
--echo # "query_block": {
|
|
--echo # "select_id": 2,
|
|
--echo # "r_loops": 5, <-- must be 5, not 30.
|
|
--source include/analyze-format.inc
|
|
|
|
eval
|
|
analyze format=json $q1;
|
|
|
|
create table t21 (pk int primary key);
|
|
insert into t21 values (1),(2),(3);
|
|
|
|
create table t22 (pk int primary key);
|
|
insert into t22 values (1),(2),(3);
|
|
|
|
# Same as above but throw in a couple of const tables.
|
|
explain
|
|
select * from
|
|
t21, t22,
|
|
(
|
|
(t1 left join t2 on t2.a=t1.b)
|
|
left join t3 on t3.a=t1.b
|
|
) left join (select grp_id, count(*)
|
|
from t10 left join t11 on t11.col1=t10.col1
|
|
group by grp_id) T on T.grp_id=t1.b
|
|
where
|
|
t21.pk=1 and t22.pk=2;
|
|
|
|
explain
|
|
select * from
|
|
t21,
|
|
(
|
|
(t1 left join t2 on t2.a=t1.b)
|
|
left join t3 on t3.a=t1.b
|
|
) left join (select grp_id, count(*)
|
|
from
|
|
t22 join t10 left join t11 on t11.col1=t10.col1
|
|
where
|
|
t22.pk=1
|
|
group by grp_id) T on T.grp_id=t1.b
|
|
where
|
|
t21.pk=1;
|
|
|
|
# And also add a non-const table
|
|
|
|
create table t5 (
|
|
pk int primary key
|
|
);
|
|
insert into t5 select seq from seq_1_to_1000;
|
|
|
|
explain
|
|
select * from
|
|
t21,
|
|
(
|
|
(((t1 join t5 on t5.pk=t1.b)) left join t2 on t2.a=t1.b)
|
|
left join t3 on t3.a=t1.b
|
|
) left join (select grp_id, count(*)
|
|
from
|
|
t22 join t10 left join t11 on t11.col1=t10.col1
|
|
where
|
|
t22.pk=1
|
|
group by grp_id) T on T.grp_id=t1.b
|
|
where
|
|
t21.pk=1;
|
|
|
|
drop table t1,t2,t3,t5, t10, t11, t21, t22;
|
|
|
|
# 5 values
|
|
create table t1(a int, b int);
|
|
insert into t1 select seq,seq from seq_1_to_5;
|
|
|
|
# 5 value groups of size 2 each
|
|
create table t2(a int, b int, key(a));
|
|
insert into t2
|
|
select A.seq,B.seq from seq_1_to_25 A, seq_1_to_2 B;
|
|
|
|
# 5 value groups of size 3 each
|
|
create table t3(a int, b int, key(a));
|
|
insert into t3
|
|
select A.seq,B.seq from seq_1_to_5 A, seq_1_to_3 B;
|
|
|
|
analyze table t1,t2,t3 persistent for all;
|
|
|
|
create table t10 (
|
|
grp_id int,
|
|
col1 int,
|
|
key(grp_id)
|
|
);
|
|
|
|
# 100 groups of 100 values each
|
|
insert into t10
|
|
select
|
|
A.seq,
|
|
B.seq
|
|
from
|
|
seq_1_to_100 A,
|
|
seq_1_to_100 B;
|
|
|
|
# and X10 multiplier
|
|
|
|
create table t11 (
|
|
col1 int,
|
|
col2 int
|
|
);
|
|
insert into t11
|
|
select A.seq, A.seq from seq_1_to_10 A;
|
|
|
|
analyze table t10,t11 persistent for all;
|
|
|
|
let $q=
|
|
select *
|
|
from
|
|
(
|
|
(t1 left join t2 on t2.a=t1.b)
|
|
left join
|
|
t3
|
|
on t3.a=t1.b
|
|
)
|
|
left join
|
|
(
|
|
select grp_id, count(*)
|
|
from t10 left join t11 on t11.col1=t10.col1
|
|
group by grp_id
|
|
)dt
|
|
on dt.grp_id=t1.b;
|
|
|
|
eval explain $q;
|
|
eval $q;
|
|
|
|
set join_cache_level=4;
|
|
eval explain $q;
|
|
eval $q;
|
|
|
|
set join_cache_level=default;
|
|
|
|
drop index a on t2;
|
|
drop index a on t3;
|
|
|
|
eval explain $q;
|
|
eval $q;
|
|
|
|
drop table t1,t2,t3;
|
|
drop table t10, t11;
|
|
|
|
|
|
--echo #
|
|
--echo # MDEV-31194: Server crash or assertion failure with join_cache_level=4
|
|
--echo # (a followup to the above bug, MDEV-26301)
|
|
--echo #
|
|
CREATE TABLE t1 (a INT);
|
|
INSERT INTO t1 VALUES (3),(4);
|
|
|
|
CREATE TABLE t2 (id INT PRIMARY KEY) ENGINE=Aria;
|
|
INSERT INTO t2 VALUES (1),(2);
|
|
|
|
set @tmp1= @@optimizer_switch, @tmp2= @@join_cache_level;
|
|
set
|
|
optimizer_switch= 'derived_with_keys=off',
|
|
join_cache_level= 4;
|
|
|
|
SELECT t1.* FROM t1 JOIN (SELECT id, COUNT(*) FROM t2 GROUP BY id) sq ON sq.id= t1.a;
|
|
|
|
set optimizer_switch= @tmp1, join_cache_level= @tmp2;
|
|
|
|
# Cleanup
|
|
DROP TABLE t1, t2;
|
|
|
|
--echo #
|
|
--echo # MDEV-31403: Server crashes in st_join_table::choose_best_splitting (still)
|
|
--echo #
|
|
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES
|
|
(1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11),(12),(13),(14),(15);
|
|
|
|
CREATE TABLE t2 (b INT) ENGINE=InnoDB;
|
|
INSERT INTO t2 VALUES (100),(200);
|
|
|
|
CREATE TABLE t3 (c INT, d INT, KEY(c)) ENGINE=InnoDB;
|
|
INSERT INTO t3 VALUES (1,1),(2,2);
|
|
|
|
CREATE VIEW v AS SELECT c, d FROM t3 GROUP BY c, d;
|
|
|
|
SELECT * FROM t1 JOIN t2 WHERE (t1.a, t2.b) IN (SELECT * FROM v);
|
|
|
|
# Cleanup
|
|
DROP VIEW v;
|
|
DROP TABLE t1, t2, t3;
|
|
|
|
--echo # End of 10.4 tests
|