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Commit b4b7d941 authored by Igor Babaev's avatar Igor Babaev
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Fixed LP bug #889750. 

If the optimizer switch 'semijoin_with_cache' is set to 'off' then 
join cache cannot be used to join inner tables of a semijoin.

Also fixed a bug in the function check_join_cache_usage() that led
to wrong output of the EXPLAIN commands for some test cases.
parent db0aed93
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Showing with 183 additions and 52 deletions
mysql-test/r/derived.result
View file @ b4b7d941
......@@ -190,13 +190,13 @@ pla_id test
explain SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY m2 ALL NULL NULL NULL NULL 9
1 PRIMARY <derived2> ALL NULL $hj 7 test.m2.matintnum 9 Using where
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9 Using where
2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort
2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1
explain SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY m2 ALL NULL NULL NULL NULL 9
1 PRIMARY <derived2> ALL NULL $hj 7 test.m2.matintnum 9 Using where
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9 Using where
2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort
2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1
drop table t1,t2;
......
mysql-test/r/derived_view.result
View file @ b4b7d941
......@@ -1480,7 +1480,7 @@ WHERE t2.c = v1.c AND t2.c = v1.b AND v1.b = t3.c);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 3 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 3 Using where; End temporary
3 DERIVED t1 ALL NULL NULL NULL NULL 3
SELECT * FROM t3
WHERE t3.b IN (SELECT v1.b FROM v1, t2
......
mysql-test/r/explain.result
View file @ b4b7d941
......@@ -200,7 +200,7 @@ flush tables;
EXPLAIN SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN (SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.dt IS NULL );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; End temporary
flush tables;
SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN (SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.dt IS NULL );
dt
......@@ -208,7 +208,7 @@ flush tables;
EXPLAIN SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN ( SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.t < '2005-11-13 7:41:31' );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY OUTR ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY INNR ALL NULL NULL NULL NULL 2 Using where; End temporary
flush tables;
SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN ( SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.t < '2005-11-13 7:41:31' );
dt
......
mysql-test/r/subselect.result
View file @ b4b7d941
......@@ -2,7 +2,7 @@ drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
......@@ -2893,6 +2893,8 @@ select * from (select max(fld) from t1) as foo;
max(fld)
1
drop table t1;
set @tmp11867_optimizer_switch=@@optimizer_switch;
set optimizer_switch='semijoin_with_cache=off';
CREATE TABLE t1 (one int, two int, flag char(1));
CREATE TABLE t2 (one int, two int, flag char(1));
INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
......@@ -2977,6 +2979,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa');
SELECT * FROM t1 WHERE (a,b) IN (('aaa','aaa'), ('aaa','bbb'));
......
mysql-test/r/subselect3.result
View file @ b4b7d941
drop table if exists t0, t1, t2, t3, t4, t5, t11, t12, t21, t22;
set @subselect3_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on';
create table t1 (oref int, grp int, ie int) ;
insert into t1 (oref, grp, ie) values
(1, 1, 1),
......@@ -345,8 +345,8 @@ dd NULL 0
bb NULL NULL
select oref, a from t2 where a in (select ie from t1 where oref=t2.oref);
oref a
ff 2
aa 1
ff 2
select oref, a from t2 where a not in (select ie from t1 where oref=t2.oref);
oref a
bb 2
......@@ -523,8 +523,8 @@ aa 1 1 1
dd 1 NULL 0
select oref, a, b from t2 where (a,b) in (select ie1,ie2 from t1 where oref=t2.oref);
oref a b
ff 2 2
aa 1 1
ff 2 2
select oref, a, b from t2 where (a,b) not in (select ie1,ie2 from t1 where oref=t2.oref);
oref a b
bb 2 1
......@@ -1117,7 +1117,7 @@ set @@optimizer_switch=@save_optimizer_switch;
explain select * from (select a from t0) X where a in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 11
1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using where; FirstMatch(<derived2>)
1 PRIMARY t1 ALL NULL NULL NULL NULL 20 Using where; FirstMatch(<derived2>); Using join buffer (flat, BNL join)
2 DERIVED t0 ALL NULL NULL NULL NULL 11
drop table t0, t1;
create table t0 (a int);
......
mysql-test/r/subselect3_jcl6.result
View file @ b4b7d941
......@@ -9,7 +9,7 @@ Variable_name Value
join_cache_level 6
drop table if exists t0, t1, t2, t3, t4, t5, t11, t12, t21, t22;
set @subselect3_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on';
create table t1 (oref int, grp int, ie int) ;
insert into t1 (oref, grp, ie) values
(1, 1, 1),
......
mysql-test/r/subselect4.result
View file @ b4b7d941
drop table if exists t1,t2,t3,t4,t5,t6;
set @subselect4_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='semijoin_with_cache=on';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
#
# Bug #46791: Assertion failed:(table->key_read==0),function unknown
......
mysql-test/r/subselect_extra.result
View file @ b4b7d941
drop table if exists t1,t2,t3,t4;
drop view if exists v1,v2,v3;
set @subselect_extra_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_extra_test,
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
# From explain.test:
#
# Bug#37870: Usage of uninitialized value caused failed assertion.
......@@ -226,7 +229,7 @@ group by a1,a2,b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 range NULL idx_t1_1 147 NULL 17 Using where; Using index for group-by
2 DEPENDENT SUBQUERY t2 index NULL idx_t2_1 163 NULL 164 Using where; Using index
2 DEPENDENT SUBQUERY t3 index NULL idx_t3_1 10 NULL 192 Using where; Using index; FirstMatch(t2)
2 DEPENDENT SUBQUERY t3 index NULL idx_t3_1 10 NULL 192 Using where; Using index; FirstMatch(t2); Using join buffer (flat, BNL join)
select a1,a2,b,c,min(c), max(c) from t1
where exists ( select * from t2
where t2.c in (select c from t3 where t3.c > t1.b) and
......@@ -257,7 +260,7 @@ group by a1,a2,b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL idx_t1_1 163 NULL 128 Using where; Using index
2 DEPENDENT SUBQUERY t2 index NULL idx_t2_1 163 NULL 164 Using where; Using index
2 DEPENDENT SUBQUERY t3 index NULL idx_t3_1 10 NULL 192 Using where; Using index; FirstMatch(t2)
2 DEPENDENT SUBQUERY t3 index NULL idx_t3_1 10 NULL 192 Using where; Using index; FirstMatch(t2); Using join buffer (flat, BNL join)
select a1,a2,b,c,min(c), max(c) from t1
where exists ( select * from t2
where t2.c in (select c from t3 where t3.c > t1.c) and
......@@ -304,7 +307,7 @@ EXPLAIN SELECT 1 FROM t1 WHERE a IN
(SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index PRIMARY,i2 PRIMARY 4 NULL 144 Using index
1 PRIMARY t1 ALL NULL NULL NULL NULL 144 Using where; FirstMatch(t1)
1 PRIMARY t1 ALL NULL NULL NULL NULL 144 Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
CREATE TABLE t2 (a INT, b INT, KEY(a));
INSERT INTO t2 VALUES (1, 1), (2, 2), (3,3), (4,4);
EXPLAIN SELECT a, SUM(b) FROM t2 GROUP BY a LIMIT 2;
......@@ -317,7 +320,7 @@ EXPLAIN SELECT 1 FROM t2 WHERE a IN
(SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 4 Using index
1 PRIMARY t1 ALL NULL NULL NULL NULL 144 Using where; FirstMatch(t2)
1 PRIMARY t1 ALL NULL NULL NULL NULL 144 Using where; FirstMatch(t2); Using join buffer (flat, BNL join)
DROP TABLE t1, t2;
#
# From derived_view.test
......@@ -427,8 +430,8 @@ WHERE t3.b IN (SELECT v1.b FROM v1, t2
WHERE t2.c = v1.c AND t2.c = v1.b AND v1.b = t3.c);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where; Start temporary
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 3 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 3 Using where; Start temporary; End temporary
3 DERIVED t1 ALL NULL NULL NULL NULL 3
SELECT * FROM t3
WHERE t3.b IN (SELECT v1.b FROM v1, t2
......
mysql-test/r/subselect_extra_no_semijoin.result
View file @ b4b7d941
set @subselect_extra_no_sj_tmp=@@optimizer_switch;
set optimizer_switch='semijoin=off,firstmatch=off,loosescan=off';
set @optimizer_switch_for_subselect_extra_test='semijoin=off,firstmatch=off,loosescan=off,semijoin_with_cache=off';
drop table if exists t1,t2,t3,t4;
drop view if exists v1,v2,v3;
set @subselect_extra_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_extra_test,
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
# From explain.test:
#
# Bug#37870: Usage of uninitialized value caused failed assertion.
......@@ -478,3 +481,4 @@ DROP VIEW v2;
DROP TABLE t1,t2;
set optimizer_switch= @tmp_subselect_extra_derived;
set optimizer_switch= @subselect_extra_no_sj_tmp;
set @optimizer_switch_for_subselect_extra_test=null;
mysql-test/r/subselect_mat.result
View file @ b4b7d941
set @subselect_mat_test_optimizer_switch_value='materialization=on,in_to_exists=off,semijoin=off';
set @subselect_sj_mat_tmp= @@optimizer_switch;
set optimizer_switch=ifnull(@subselect_mat_test_optimizer_switch_value, 'semijoin=on,firstmatch=on,loosescan=on');
set optimizer_switch=ifnull(@subselect_mat_test_optimizer_switch_value, 'semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on');
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set @optimizer_switch_local_default= @@optimizer_switch;
drop table if exists t1, t2, t3, t4, t5, t1i, t2i, t3i;
......
mysql-test/r/subselect_no_mat.result
View file @ b4b7d941
......@@ -7,7 +7,7 @@ drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
......@@ -2898,6 +2898,8 @@ select * from (select max(fld) from t1) as foo;
max(fld)
1
drop table t1;
set @tmp11867_optimizer_switch=@@optimizer_switch;
set optimizer_switch='semijoin_with_cache=off';
CREATE TABLE t1 (one int, two int, flag char(1));
CREATE TABLE t2 (one int, two int, flag char(1));
INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
......@@ -2982,6 +2984,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa');
SELECT * FROM t1 WHERE (a,b) IN (('aaa','aaa'), ('aaa','bbb'));
......
mysql-test/r/subselect_no_opts.result
View file @ b4b7d941
......@@ -3,7 +3,7 @@ drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
......@@ -2894,6 +2894,8 @@ select * from (select max(fld) from t1) as foo;
max(fld)
1
drop table t1;
set @tmp11867_optimizer_switch=@@optimizer_switch;
set optimizer_switch='semijoin_with_cache=off';
CREATE TABLE t1 (one int, two int, flag char(1));
CREATE TABLE t2 (one int, two int, flag char(1));
INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
......@@ -2978,6 +2980,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa');
SELECT * FROM t1 WHERE (a,b) IN (('aaa','aaa'), ('aaa','bbb'));
......
mysql-test/r/subselect_no_scache.result
View file @ b4b7d941
......@@ -6,7 +6,7 @@ drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
......@@ -2897,6 +2897,8 @@ select * from (select max(fld) from t1) as foo;
max(fld)
1
drop table t1;
set @tmp11867_optimizer_switch=@@optimizer_switch;
set optimizer_switch='semijoin_with_cache=off';
CREATE TABLE t1 (one int, two int, flag char(1));
CREATE TABLE t2 (one int, two int, flag char(1));
INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
......@@ -2981,6 +2983,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa');
SELECT * FROM t1 WHERE (a,b) IN (('aaa','aaa'), ('aaa','bbb'));
......
mysql-test/r/subselect_no_semijoin.result
View file @ b4b7d941
......@@ -3,7 +3,7 @@ drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
(select 2)
......@@ -2894,6 +2894,8 @@ select * from (select max(fld) from t1) as foo;
max(fld)
1
drop table t1;
set @tmp11867_optimizer_switch=@@optimizer_switch;
set optimizer_switch='semijoin_with_cache=off';
CREATE TABLE t1 (one int, two int, flag char(1));
CREATE TABLE t2 (one int, two int, flag char(1));
INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
......@@ -2978,6 +2980,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),<exists>(select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` having (trigcond(((<cache>(`test`.`t1`.`one`) = `test`.`t2`.`one`) or isnull(`test`.`t2`.`one`))) and trigcond(((<cache>(`test`.`t1`.`two`) = `test`.`t2`.`two`) or isnull(`test`.`t2`.`two`))) and trigcond(<is_not_null_test>(`test`.`t2`.`one`)) and trigcond(<is_not_null_test>(`test`.`t2`.`two`)))))) AS `test` from `test`.`t1`
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
CREATE TABLE t1 (a char(5), b char(5));
INSERT INTO t1 VALUES (NULL,'aaa'), ('aaa','aaa');
SELECT * FROM t1 WHERE (a,b) IN (('aaa','aaa'), ('aaa','bbb'));
......
mysql-test/r/subselect_sj.result
View file @ b4b7d941
......@@ -726,7 +726,7 @@ FROM it1 LEFT JOIN it2 ON it2.datetime_key);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY it1 index NULL int_key 4 NULL 2 Using index; Start temporary
1 PRIMARY ot1 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join)
1 PRIMARY it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where; End temporary
DROP TABLE ot1, it1, it2;
# End of BUG#38075
#
......@@ -1047,8 +1047,8 @@ AND t1.val IN (SELECT t3.val FROM t3
WHERE t3.val LIKE 'a%' OR t3.val LIKE 'e%');
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5 Start temporary
1 PRIMARY t3 ALL NULL NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 5 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary
SELECT *
FROM t1
WHERE t1.val IN (SELECT t2.val FROM t2
......@@ -1238,7 +1238,7 @@ A.t1field IN (SELECT C.t2field FROM t2 C
WHERE C.t2field IN (SELECT D.t2field FROM t2 D));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY A index PRIMARY PRIMARY 4 NULL 3 Using index; Start temporary
1 PRIMARY B index NULL PRIMARY 4 NULL 3 Using index; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY B index NULL PRIMARY 4 NULL 3 Using index; End temporary
1 PRIMARY C eq_ref PRIMARY PRIMARY 4 test.A.t1field 1 Using index
1 PRIMARY D eq_ref PRIMARY PRIMARY 4 test.A.t1field 1 Using index
SELECT * FROM t1 A
......@@ -1268,8 +1268,8 @@ where A.a = B.a and A.a in (select a from t2 C) and B.a in (select a from t2 D);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY A ALL NULL NULL NULL NULL 3 Start temporary
1 PRIMARY B ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
1 PRIMARY C ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
1 PRIMARY D ALL NULL NULL NULL NULL 3 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY C ALL NULL NULL NULL NULL 3 Using where
1 PRIMARY D ALL NULL NULL NULL NULL 3 Using where; End temporary
drop table t1, t2;
#
# BUG#784441: Abort on semijoin with a view as the inner table
......@@ -1378,7 +1378,7 @@ insert into t3 values('three'),( 'four');
explain select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a=t2.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t3 ALL NULL NULL NULL NULL 8 Using where; End temporary; Using join buffer (flat, BNL join)
select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a=t2.a);
b
......@@ -1432,7 +1432,7 @@ explain
select * from t0 where a in (select t1.a from t1 left join t2 on t1.a=t2.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where; End temporary
select * from t0 where a in (select t1.a from t1 left join t2 on t1.a=t2.a);
a
......@@ -1491,7 +1491,7 @@ select * from t0
where a in (select t1.a from t1 left join (t3 join t2 on t3.b=t2.b) on t1.a=t3.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where
1 PRIMARY t3 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where; End temporary
select * from t0
......@@ -1509,7 +1509,7 @@ select * from t0
where a in (select t1.a from t1 left join (t3 join t2 on t3.b=t2.b) on t1.a=t3.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 1
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 Using where; End temporary
select * from t0
......@@ -1664,8 +1664,6 @@ FROM t4
WHERE t4.f10 != t2.f11
);
f10 f10 f11 f10
0 0 b 0
0 0 b 0
0 0 a 0
0 0 a 0
0 0 b 0
......@@ -1684,6 +1682,8 @@ f10 f10 f11 f10
0 0 b 0
0 0 a 0
0 0 a 0
0 0 b 0
0 0 b 0
drop table t1,t2,t3,t4;
#
# BUG#803457: Wrong result with semijoin + view + outer join in maria-5.3-subqueries-mwl90
......@@ -1706,7 +1706,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t3 ALL NULL NULL NULL NULL 5 Using where
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; End temporary
SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3 ) WHERE IFNULL(t2.f3,'foo') IN (SELECT * FROM t4);
f1 f2 f3 f3
2 0 0 0
......@@ -1766,7 +1766,7 @@ SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Start temporary
1 PRIMARY t2 index PRIMARY PRIMARY 4 NULL 2 Using index; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL b NULL NULL NULL 5 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL b NULL NULL NULL 5 Using where; End temporary
SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
b a
5 6
......@@ -1872,8 +1872,8 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Start temporary
1 PRIMARY alias2 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 20 Using join buffer (flat, BNL join)
1 PRIMARY SQ3_alias1 ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join)
1 PRIMARY SQ3_alias2 index NULL PRIMARY 4 NULL 20 Using index; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY SQ3_alias1 ALL NULL NULL NULL NULL 20 Using where
1 PRIMARY SQ3_alias2 index NULL PRIMARY 4 NULL 20 Using index; End temporary
2 DERIVED t2 ALL NULL NULL NULL NULL 20
create table t3 as
SELECT
......@@ -2018,4 +2018,36 @@ EXECUTE st1;
b c b d
DROP TABLE t1,t2,t3;
set optimizer_switch=@tmp878753;
#
# Bug #889750: semijoin=on + firstmatch=off + semijoin_with_cache=off
#
create table t1 (a int);
insert into t1 values (7), (1), (5), (3);
create table t2 (a int);
insert into t2 values (4), (1), (8), (3), (9), (2);
set @tmp_otimizer_switch= @@optimizer_switch;
set optimizer_switch='semijoin=on';
set optimizer_switch='firstmatch=off';
set optimizer_switch='semijoin_with_cache=on';
explain
select * from t1 where t1.a in (select t2.a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
select * from t1 where t1.a in (select t2.a from t2);
a
1
3
set optimizer_switch='semijoin_with_cache=off';
explain
select * from t1 where t1.a in (select t2.a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary
select * from t1 where t1.a in (select t2.a from t2);
a
1
3
set optimizer_switch= @tmp_otimizer_switch;
drop table t1,t2;
set optimizer_switch=@subselect_sj_tmp;
mysql-test/r/subselect_sj2.result
View file @ b4b7d941
......@@ -867,7 +867,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 2
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; End temporary
3 DERIVED t1 ALL NULL NULL NULL NULL 1
SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);
......
mysql-test/r/subselect_sj_jcl6.result
View file @ b4b7d941
......@@ -2029,6 +2029,38 @@ EXECUTE st1;
b c b d
DROP TABLE t1,t2,t3;
set optimizer_switch=@tmp878753;
#
# Bug #889750: semijoin=on + firstmatch=off + semijoin_with_cache=off
#
create table t1 (a int);
insert into t1 values (7), (1), (5), (3);
create table t2 (a int);
insert into t2 values (4), (1), (8), (3), (9), (2);
set @tmp_otimizer_switch= @@optimizer_switch;
set optimizer_switch='semijoin=on';
set optimizer_switch='firstmatch=off';
set optimizer_switch='semijoin_with_cache=on';
explain
select * from t1 where t1.a in (select t2.a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary; Using join buffer (flat, BNL join)
select * from t1 where t1.a in (select t2.a from t2);
a
1
3
set optimizer_switch='semijoin_with_cache=off';
explain
select * from t1 where t1.a in (select t2.a from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Start temporary
1 PRIMARY t2 ALL NULL NULL NULL NULL 6 Using where; End temporary
select * from t1 where t1.a in (select t2.a from t2);
a
1
3
set optimizer_switch= @tmp_otimizer_switch;
drop table t1,t2;
set optimizer_switch=@subselect_sj_tmp;
#
# BUG#49129: Wrong result with IN-subquery with join_cache_level=6 and firstmatch=off
......
mysql-test/r/subselect_sj_mat.result
View file @ b4b7d941
set @subselect_sj_mat_tmp= @@optimizer_switch;
set optimizer_switch=ifnull(@subselect_mat_test_optimizer_switch_value, 'semijoin=on,firstmatch=on,loosescan=on');
set optimizer_switch=ifnull(@subselect_mat_test_optimizer_switch_value, 'semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on');
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set @optimizer_switch_local_default= @@optimizer_switch;
drop table if exists t1, t2, t3, t4, t5, t1i, t2i, t3i;
......
mysql-test/r/type_datetime.result
View file @ b4b7d941
......@@ -539,7 +539,7 @@ select * from t1
where id in (select id from t1 as x1 where (t1.cur_date is null));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Start temporary
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; End temporary
Warnings:
Note 1276 Field or reference 'test.t1.cur_date' of SELECT #2 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`cur_date` AS `cur_date` from `test`.`t1` semi join (`test`.`t1` `x1`) where ((`test`.`x1`.`id` = `test`.`t1`.`id`) and (`test`.`t1`.`cur_date` = 0))
......@@ -551,7 +551,7 @@ select * from t2
where id in (select id from t2 as x1 where (t2.cur_date is null));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Start temporary
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY x1 ALL NULL NULL NULL NULL 2 100.00 Using where; End temporary
Warnings:
Note 1276 Field or reference 'test.t2.cur_date' of SELECT #2 was resolved in SELECT #1
Note 1003 select `test`.`t2`.`id` AS `id`,`test`.`t2`.`cur_date` AS `cur_date` from `test`.`t2` semi join (`test`.`t2` `x1`) where ((`test`.`x1`.`id` = `test`.`t2`.`id`) and (`test`.`t2`.`cur_date` = 0))
......
mysql-test/suite/pbxt/r/derived.result
View file @ b4b7d941
......@@ -190,13 +190,13 @@ pla_id test
explain SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY m2 ALL NULL NULL NULL NULL 9
1 PRIMARY <derived2> ALL NULL $hj 7 test.m2.matintnum 9 Using where
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9 Using where
2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort
2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1
explain SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY m2 ALL NULL NULL NULL NULL 9
1 PRIMARY <derived2> ALL NULL $hj 7 test.m2.matintnum 9 Using where
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 9 Using where
2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort
2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1
drop table t1,t2;
......
mysql-test/suite/pbxt/r/subselect.result
View file @ b4b7d941
......@@ -1362,7 +1362,7 @@ explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 index a a 5 NULL 4 100.00 Using where; Using index; Start temporary
1 PRIMARY t1 ref a a 5 test.t2.a 1 100.00 Using index
1 PRIMARY t3 index a a 5 NULL 3 100.00 Using where; Using index; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t3 index a a 5 NULL 3 100.00 Using where; Using index; End temporary
Warnings:
Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where ((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`t3`.`a` = `test`.`t1`.`b`))
insert into t1 values (3,31);
......
mysql-test/t/subselect.test
View file @ b4b7d941
......@@ -14,7 +14,7 @@ drop view if exists v2;
set @subselect_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_test,
"semijoin=on,firstmatch=on,loosescan=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
select (select 2);
......@@ -1866,6 +1866,9 @@ drop table t1;
# Bug#11867 queries with ROW(,elems>) IN (SELECT DISTINCT <cols> FROM ...)
#
set @tmp11867_optimizer_switch=@@optimizer_switch;
set optimizer_switch='semijoin_with_cache=off';
CREATE TABLE t1 (one int, two int, flag char(1));
CREATE TABLE t2 (one int, two int, flag char(1));
INSERT INTO t1 VALUES(1,2,'Y'),(2,3,'Y'),(3,4,'Y'),(5,6,'N'),(7,8,'N');
......@@ -1893,6 +1896,7 @@ explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FR
explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1;
DROP TABLE t1,t2;
set optimizer_switch=@tmp11867_optimizer_switch;
#
# Bug#12392 where cond with IN predicate for rows and NULL values in table
......
mysql-test/t/subselect3.test
View file @ b4b7d941
......@@ -3,7 +3,7 @@ drop table if exists t0, t1, t2, t3, t4, t5, t11, t12, t21, t22;
--enable_warnings
set @subselect3_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on';
#
# 1. Subquery with GROUP/HAVING
......
mysql-test/t/subselect4.test
View file @ b4b7d941
......@@ -6,6 +6,7 @@ drop table if exists t1,t2,t3,t4,t5,t6;
set @subselect4_tmp= @@optimizer_switch;
set optimizer_switch='semijoin=on,firstmatch=on,loosescan=on';
set optimizer_switch='semijoin_with_cache=on';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
--echo #
......
mysql-test/t/subselect_extra.test
View file @ b4b7d941
......@@ -12,6 +12,9 @@ drop table if exists t1,t2,t3,t4;
drop view if exists v1,v2,v3;
--enable_warnings
set @subselect_extra_tmp=@@optimizer_switch;
set @@optimizer_switch=ifnull(@optimizer_switch_for_subselect_extra_test,
"semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off");
--echo # From explain.test:
--echo #
......@@ -390,4 +393,3 @@ DROP VIEW v2;
DROP TABLE t1,t2;
set optimizer_switch= @tmp_subselect_extra_derived;
mysql-test/t/subselect_extra_no_semijoin.test
View file @ b4b7d941
set @subselect_extra_no_sj_tmp=@@optimizer_switch;
set optimizer_switch='semijoin=off,firstmatch=off,loosescan=off';
set @optimizer_switch_for_subselect_extra_test='semijoin=off,firstmatch=off,loosescan=off,semijoin_with_cache=off';
--source t/subselect_extra.test
set optimizer_switch= @subselect_extra_no_sj_tmp;
set @optimizer_switch_for_subselect_extra_test=null;
\ No newline at end of file
mysql-test/t/subselect_sj.test
View file @ b4b7d941
......@@ -776,6 +776,7 @@ eval EXPLAIN EXTENDED $query;
eval $query;
DROP TABLE t1, t2;
--echo # End of Bug#48213
--echo #
......@@ -1852,5 +1853,32 @@ EXECUTE st1;
DROP TABLE t1,t2,t3;
set optimizer_switch=@tmp878753;
--echo #
--echo # Bug #889750: semijoin=on + firstmatch=off + semijoin_with_cache=off
--echo #
create table t1 (a int);
insert into t1 values (7), (1), (5), (3);
create table t2 (a int);
insert into t2 values (4), (1), (8), (3), (9), (2);
set @tmp_otimizer_switch= @@optimizer_switch;
set optimizer_switch='semijoin=on';
set optimizer_switch='firstmatch=off';
set optimizer_switch='semijoin_with_cache=on';
explain
select * from t1 where t1.a in (select t2.a from t2);
select * from t1 where t1.a in (select t2.a from t2);
set optimizer_switch='semijoin_with_cache=off';
explain
select * from t1 where t1.a in (select t2.a from t2);
select * from t1 where t1.a in (select t2.a from t2);
set optimizer_switch= @tmp_otimizer_switch;
drop table t1,t2;
# The following command must be the last one the file
set optimizer_switch=@subselect_sj_tmp;
mysql-test/t/subselect_sj_mat.test
View file @ b4b7d941
......@@ -4,7 +4,7 @@
#
set @subselect_sj_mat_tmp= @@optimizer_switch;
set optimizer_switch=ifnull(@subselect_mat_test_optimizer_switch_value, 'semijoin=on,firstmatch=on,loosescan=on');
set optimizer_switch=ifnull(@subselect_mat_test_optimizer_switch_value, 'semijoin=on,firstmatch=on,loosescan=on,semijoin_with_cache=on');
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set @optimizer_switch_local_default= @@optimizer_switch;
......
sql/sql_select.cc
View file @ b4b7d941
......@@ -9025,7 +9025,7 @@ uint check_join_cache_usage(JOIN_TAB *tab,
if (tab->inside_loosescan_range)
goto no_join_cache;
if (tab->is_inner_table_of_semi_join_with_first_match() &&
if (tab->is_inner_table_of_semijoin() &&
!join->allowed_semijoin_with_cache)
goto no_join_cache;
if (tab->is_inner_table_of_outer_join() &&
......@@ -9172,7 +9172,10 @@ uint check_join_cache_usage(JOIN_TAB *tab,
no_join_cache:
if (tab->type != JT_ALL && tab->is_ref_for_hash_join())
{
tab->type= JT_ALL;
tab->ref.key_parts= 0;
}
revise_cache_usage(tab);
return 0;
}
......
sql/sql_select.h
View file @ b4b7d941
......@@ -391,6 +391,10 @@ typedef struct st_join_table {
{
return first_sj_inner_tab != NULL;
}
bool is_inner_table_of_semijoin()
{
return emb_sj_nest != NULL;
}
bool is_inner_table_of_outer_join()
{
return first_inner != NULL;
......
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