diff options
Diffstat (limited to 'mysql-test/r/subselect_no_opts.result')
| -rw-r--r-- | mysql-test/r/subselect_no_opts.result | 296 |
1 files changed, 275 insertions, 21 deletions
diff --git a/mysql-test/r/subselect_no_opts.result b/mysql-test/r/subselect_no_opts.result index 91878c5dec5..518f9366b80 100644 --- a/mysql-test/r/subselect_no_opts.result +++ b/mysql-test/r/subselect_no_opts.result @@ -1,9 +1,12 @@ set @optimizer_switch_for_subselect_test='materialization=off,semijoin=off,subquery_cache=off,mrr=on,mrr_sort_keys=on,index_condition_pushdown=on'; +set join_cache_level=1; +set @join_cache_level_for_subselect_test=@@join_cache_level; 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,semijoin_with_cache=on,partial_match_rowid_merge=off,partial_match_table_scan=off"); +set join_cache_level=@join_cache_level_for_subselect_test; set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on'; select (select 2); (select 2) @@ -202,6 +205,8 @@ select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from (select * from t2 where a>1) as tt; (select t3.a from t3 where a<8 order by 1 desc limit 1) a 7 2 +set @tmp_optimizer_switch=@@optimizer_switch; +set optimizer_switch='derived_merge=off,derived_with_keys=off'; explain extended select (select t3.a from t3 where a<8 order by 1 desc limit 1), a from (select * from t2 where a>1) as tt; id select_type table type possible_keys key key_len ref rows filtered Extra @@ -210,6 +215,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort Warnings: Note 1003 select (select `test`.`t3`.`a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`tt`.`a` AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt` +set optimizer_switch=@tmp_optimizer_switch; select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1); a 2 @@ -1371,7 +1377,7 @@ create table t1 (id int not null auto_increment primary key, salary int, key(sal insert into t1 (salary) values (100),(1000),(10000),(10),(500),(5000),(50000); explain extended SELECT id FROM t1 where salary = (SELECT MAX(salary) FROM t1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using index condition +1 PRIMARY t1 ref salary salary 5 const 0 0.00 Using where 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Select tables optimized away Warnings: Note 1003 select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`salary` = (select max(`test`.`t1`.`salary`) from `test`.`t1`)) @@ -1396,7 +1402,7 @@ insert into t1 values (1,0), (2,0), (3,0); insert into t2 values (1,1), (2,1), (3,1), (2,2); update ignore t1 set b=(select b from t2 where t1.a=t2.a); Warnings: -Error 1242 Subquery returns more than 1 row +Warning 1242 Subquery returns more than 1 row select * from t1; a b 1 1 @@ -1497,10 +1503,10 @@ a explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index -2 DEPENDENT SUBQUERY t1 ref a a 5 func 1001 100.00 Using index -2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index; Using join buffer (flat, BNL join) +2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index +2 DEPENDENT SUBQUERY t1 ref a a 10 func,test.t3.a 1167 100.00 Using index Warnings: -Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))) +Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where <in_optimizer>(`test`.`t2`.`a`,<exists>(select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`a`) and (<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a`)))) insert into t1 values (3,31); select * from t2 where t2.a in (select a from t1 where t1.b <> 30); a @@ -1659,7 +1665,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where 2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found Warnings: -Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,(<max>(select NULL from `test`.`t2` group by 1) > <cache>(`test`.`t3`.`a`)))) +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>(<in_optimizer>(`test`.`t3`.`a`,((select max(NULL) from `test`.`t2`) > <cache>(`test`.`t3`.`a`)))) select * from t3 where a >= some (select b from t2 group by 1); a explain extended select * from t3 where a >= some (select b from t2 group by 1); @@ -1667,7 +1673,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where 2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found Warnings: -Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,(<min>(select NULL from `test`.`t2` group by 1) <= <cache>(`test`.`t3`.`a`)))) +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(`test`.`t3`.`a`,((select min(NULL) from `test`.`t2`) <= <cache>(`test`.`t3`.`a`)))) select * from t3 where NULL >= any (select b from t2); a explain extended select * from t3 where NULL >= any (select b from t2); @@ -1683,7 +1689,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found Warnings: -Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL))) +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL))) select * from t3 where NULL >= some (select b from t2); a explain extended select * from t3 where NULL >= some (select b from t2); @@ -1699,7 +1705,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found Warnings: -Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,(<min>(select NULL from `test`.`t2` group by 1) <= NULL))) +Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>(<in_optimizer>(NULL,((select min(NULL) from `test`.`t2`) <= NULL))) insert into t2 values (2,2), (2,1), (3,3), (3,1); select * from t3 where a > all (select max(b) from t2 group by a); a @@ -2976,9 +2982,9 @@ Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `tes 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; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 -2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where 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` +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') and 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`)))) having (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)); @@ -4354,6 +4360,9 @@ LEFT(t1.a1,1) SELECT a2 FROM t2 WHERE t2.a2 IN (SELECT t1.a1 FROM t1,t3 WHERE t1.b1=t3.a3); a2 DROP TABLE t1, t2, t3; +SET @save_optimizer_switch=@@optimizer_switch; +SET optimizer_switch='semijoin_with_cache=off'; +SET optimizer_switch='materialization=off'; CREATE TABLE t1 (a CHAR(1), b VARCHAR(10)); INSERT INTO t1 VALUES ('a', 'aa'); INSERT INTO t1 VALUES ('a', 'aaa'); @@ -4385,6 +4394,7 @@ id select_type table type possible_keys key key_len ref rows Extra SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500); a b DROP TABLE t1,t2; +SET optimizer_switch= @save_optimizer_switch; CREATE TABLE t1(a INT, b INT); INSERT INTO t1 VALUES (1,1), (1,2), (2,3), (2,4); EXPLAIN @@ -4510,18 +4520,21 @@ a drop table t1, t2; CREATE TABLE t1 (a INT); INSERT INTO t1 VALUES (1),(2); -EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 GROUP BY a); +SET @save_join_cache_level=@@join_cache_level; +SET join_cache_level=0; +EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a); 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 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary Warnings: -Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) -EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 FROM t1 WHERE a > 3 GROUP BY a); +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a` having (1 = <ref_null_helper>(min(`test`.`t1`.`a`))))) +EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a); 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 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary Warnings: -Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(1)))) +Note 1003 select 1 AS `1` from `test`.`t1` where <in_optimizer>(1,<exists>(select min(`test`.`t1`.`a`) from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` having (1 = <ref_null_helper>(min(`test`.`t1`.`a`))))) +SET join_cache_level=@save_join_cache_level; DROP TABLE t1; # # Bug#45061: Incorrectly market field caused wrong result. @@ -4597,6 +4610,32 @@ pk int_key 3 3 7 3 DROP TABLE t1,t2; +# +# Bug#12329653 +# EXPLAIN, UNION, PREPARED STATEMENT, CRASH, SQL_FULL_GROUP_BY +# +CREATE TABLE t1(a1 int); +INSERT INTO t1 VALUES (1),(2); +SELECT @@session.sql_mode INTO @old_sql_mode; +SET SESSION sql_mode='ONLY_FULL_GROUP_BY'; +SELECT 1 FROM t1 WHERE 1 < SOME (SELECT a1 FROM t1); +1 +1 +1 +PREPARE stmt FROM +'SELECT 1 UNION ALL +SELECT 1 FROM t1 +ORDER BY +(SELECT 1 FROM t1 AS t1_0 + WHERE 1 < SOME (SELECT a1 FROM t1) +)' ; +EXECUTE stmt ; +ERROR 21000: Subquery returns more than 1 row +EXECUTE stmt ; +ERROR 21000: Subquery returns more than 1 row +SET SESSION sql_mode=@old_sql_mode; +DEALLOCATE PREPARE stmt; +DROP TABLE t1; End of 5.0 tests. create table t_out (subcase char(3), a1 char(2), b1 char(2), c1 char(2)); @@ -4839,8 +4878,6 @@ SELECT * FROM t1 WHERE EXISTS (SELECT DISTINCT a FROM t2 WHERE t1.a < t2.a ORDER BY b); pk a 1 10 -3 30 -2 20 DROP TABLE t1,t2; CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), KEY b (b)); INSERT INTO t1 VALUES (1,NULL), (9,NULL); @@ -5593,16 +5630,19 @@ CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL); INSERT INTO t2 VALUES (11,1); INSERT INTO t2 VALUES (12,2); INSERT INTO t2 VALUES (15,4); +SET @save_join_cache_level=@@join_cache_level; +SET join_cache_level=0; EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where -2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using index 2 DEPENDENT SUBQUERY it eq_ref PRIMARY PRIMARY 4 func 1 Using index +2 DEPENDENT SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using index SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1); pk i 11 0 12 5 15 0 +SET join_cache_level=@save_join_cache_level; DROP table t1,t2; # # Bug#751350: crash with pushed condition for outer references when @@ -5610,18 +5650,21 @@ DROP table t1,t2; # CREATE TABLE t1 (a int, b int) ; INSERT INTO t1 VALUES (0,0),(0,0); +set @optimizer_switch_save=@@optimizer_switch; +set @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=on'; EXPLAIN SELECT b FROM t1 WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a ) GROUP BY b; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort -2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where SELECT b FROM t1 WHERE ('0') IN ( SELECT a FROM t1 GROUP BY a ) GROUP BY b; b 0 +set @@optimizer_switch=@optimizer_switch_save; DROP TABLE t1; # # Bug #11765713 58705: @@ -5833,6 +5876,8 @@ CREATE TABLE t2 (a int, b int) ; INSERT INTO t2 VALUES (20,9),(20,9); create table t3 (d int, e int); insert into t3 values (2, 9), (3,10); +SET @save_optimizer_switch=@@optimizer_switch; +SET optimizer_switch='outer_join_with_cache=off'; EXPLAIN SELECT t2.b , t1.c FROM t2 LEFT JOIN t1 ON t1.c < 3 @@ -5847,9 +5892,9 @@ WHERE (t2.b, t1.c) NOT IN (SELECT * from t3); b c 9 NULL 9 NULL +SET optimizer_switch=@save_optimizer_switch; drop table t1, t2, t3; End of 5.3 tests -End of 5.5 tests. # # Bug#12763207 - ASSERT IN SUBSELECT::SINGLE_VALUE_TRANSFORMER # @@ -5882,10 +5927,13 @@ DROP TABLE t1, t2; CREATE TABLE t1 (a INT, b INT, INDEX (a)); INSERT INTO t1 VALUES (3, 10), (2, 20), (7, 10), (5, 20); +set @tmp_optimizer_switch=@@optimizer_switch; +set optimizer_switch='derived_merge=off,derived_with_keys=off'; EXPLAIN SELECT * FROM (SELECT * FROM t1 WHERE a=7) t; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 2 DERIVED t1 ref a a 5 const 1 +set optimizer_switch=@tmp_optimizer_switch; EXPLAIN SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 WHERE a=7); id select_type table type possible_keys key key_len ref rows Extra @@ -5964,7 +6012,7 @@ WHERE f1_key != table2.f1_key AND f1_key >= table1.f1 ); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY table1 ALL NULL NULL NULL NULL 2 1 PRIMARY table2 index NULL f1_key 4 NULL 10 Using where; Using index; Using join buffer (flat, BNL join) -2 DEPENDENT SUBQUERY t2 range f1_key f1_key 4 NULL 6 Range checked for each record (index map: 0x1); Using temporary +2 DEPENDENT SUBQUERY t2 index f1_key f1_key 4 NULL 10 Using where; Using index DROP TABLE t1,t2; # # lp:826279: assertion failure with GROUP BY a result of subquery @@ -6026,6 +6074,212 @@ set @@optimizer_switch='in_to_exists=on,semijoin=off,materialization=off,subquer select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1 where a in (select a from t1))))))))))))))))))))))))))))); a 1 +set @@optimizer_switch=@subselect_tmp; +drop table t1; +# +# LP BUG#894397 Wrong result with in_to_exists, constant table , semijoin=OFF,materialization=OFF +# +CREATE TABLE t1 (a varchar(3)); +INSERT INTO t1 VALUES ('AAA'),('BBB'); +CREATE TABLE t2 (a varchar(3)); +INSERT INTO t2 VALUES ('CCC'); +set @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off'; +SELECT * FROM t1 WHERE t1.a IN (SELECT t2.a FROM t2 WHERE t2.a < 'ZZZ'); +a +set @@optimizer_switch=@subselect_tmp; +drop table t1, t2; +# +# LP bug #859375: Assertion `0' failed in st_select_lex_unit::optimize +# with view , UNION and prepared statement (rewriting fake_select +# condition). +# +CREATE TABLE t1 ( f1 int NOT NULL, f4 varchar(1) NOT NULL) ; +INSERT INTO t1 VALUES (6,'d'),(7,'y'); +CREATE TABLE t2 ( f1 int NOT NULL, f2 int NOT NULL) ; +INSERT INTO t2 VALUES (10,7); +CREATE VIEW v2 AS SELECT * FROM t2; +PREPARE st1 FROM " + SELECT * + FROM t1 + LEFT JOIN v2 ON ( v2.f2 = t1.f1 ) + WHERE v2.f1 NOT IN ( + SELECT 1 UNION + SELECT 247 + ) +"; +EXECUTE st1; +f1 f4 f1 f2 +7 y 10 7 +deallocate prepare st1; +DROP VIEW v2; +DROP TABLE t1,t2; +# +# LP bug #887458 Crash in subselect_union_engine::no_rows with +# double UNION and join_cache_level=3,8 +# (IN/ALL/ANY optimizations should not be applied to fake_select) +CREATE TABLE t2 ( a int, b varchar(1)) ; +INSERT IGNORE INTO t2 VALUES (8,'y'),(8,'y'); +CREATE TABLE t1 ( b varchar(1)) ; +INSERT IGNORE INTO t1 VALUES (NULL),(NULL); +set @save_join_cache_level=@@join_cache_level; +SET SESSION join_cache_level=3; +SELECT * +FROM t1, t2 +WHERE t2.b IN ( +SELECT 'm' UNION +SELECT 'm' +) OR t1.b <> SOME ( +SELECT 'v' UNION +SELECT 't' +); +b a b +set @@join_cache_level= @save_join_cache_level; +drop table t1,t2; +# +# LP bug #885162 Got error 124 from storage engine with UNION inside +# subquery and join_cache_level=3..8 +# (IN/ALL/ANY optimizations should not be applied to fake_select) +# +CREATE TABLE t1 ( +f1 varchar(1) DEFAULT NULL +); +INSERT INTO t1 VALUES ('c'); +set @save_join_cache_level=@@join_cache_level; +SET SESSION join_cache_level=8; +SELECT * FROM t1 WHERE t1.f1 IN ( SELECT 'k' UNION SELECT 'e' ); +f1 +set @@join_cache_level= @save_join_cache_level; drop table t1; +# +# LP BUG#747278 incorrect values of the NULL (no rows) single +# row subquery requested via element_index() interface +# +CREATE TABLE t1 (f1a int, f1b int) ; +INSERT IGNORE INTO t1 VALUES (1,1),(2,2); +CREATE TABLE t2 ( f2 int); +INSERT IGNORE INTO t2 VALUES (3),(4); +CREATE TABLE t3 (f3a int default 1, f3b int default 2); +INSERT INTO t3 VALUES (1,1),(2,2); +set @old_optimizer_switch = @@session.optimizer_switch; +set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,subquery_cache=off,semijoin=off'; +SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2; +(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) +NULL +NULL +SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2; +(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) +NULL +NULL +SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2; +(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) +NULL +NULL +SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1); +(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) +NULL +SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2; +(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) +NULL +NULL +SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2; +(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) +NULL +NULL +SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2; +(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) +NULL +NULL +SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1); +(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) +NULL +set @@session.optimizer_switch=@old_optimizer_switch; +SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2; +(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) +NULL +NULL +SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2; +(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) +NULL +NULL +SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2; +(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) +NULL +NULL +SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1); +(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) +NULL +SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2; +(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) +NULL +NULL +SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2; +(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) +NULL +NULL +SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2; +(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) +NULL +NULL +SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1); +(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) +NULL +select (null, null) = (null, null); +(null, null) = (null, null) +NULL +SELECT (SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0); +(SELECT f3a, f3a FROM t3 where f3a > 3) = (0, 0) +NULL +drop tables t1,t2,t3; +# +# LP BUG#825051 Wrong result with date/datetime and subquery with GROUP BY and in_to_exists +# +CREATE TABLE t1 (a date, KEY (a)) ; +INSERT INTO t1 VALUES ('2009-01-01'),('2009-02-02'); +set @old_optimizer_switch = @@optimizer_switch; +SET @@optimizer_switch='semijoin=off,materialization=off,in_to_exists=on,subquery_cache=off'; +EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index +2 DEPENDENT SUBQUERY t1 index_subquery a a 4 func 2 Using index +SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); +a +2009-01-01 +2009-02-02 +SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquery_cache=off'; +EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index +2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index +SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); +a +2009-01-01 +2009-02-02 +set @@optimizer_switch=@old_optimizer_switch; +drop table t1; +# +# LP BUG#908269 incorrect condition in case of subqueries depending +# on constant tables +# +CREATE TABLE t1 ( a INT ); +INSERT INTO t1 VALUES (1),(5); +CREATE TABLE t2 ( b INT ) ENGINE=MyISAM; +INSERT INTO t2 VALUES (1); +CREATE TABLE t3 ( c INT ); +INSERT INTO t3 VALUES (4),(5); +SET optimizer_switch='subquery_cache=off'; +SELECT ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1; +( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) +1 +NULL +SELECT ( SELECT b FROM t2 WHERE b = a OR b * 0) FROM t1; +( SELECT b FROM t2 WHERE b = a OR b * 0) +1 +NULL +SELECT ( SELECT b FROM t2 WHERE b = a OR rand() * 0) FROM t1; +( SELECT b FROM t2 WHERE b = a OR rand() * 0) +1 +NULL +drop table t1,t2,t3; +# return optimizer switch changed in the beginning of this test set optimizer_switch=@subselect_tmp; set @optimizer_switch_for_subselect_test=null; |