diff options
Diffstat (limited to 'mysql-test/main/subselect.result')
| -rw-r--r-- | mysql-test/main/subselect.result | 86 |
1 files changed, 50 insertions, 36 deletions
diff --git a/mysql-test/main/subselect.result b/mysql-test/main/subselect.result index dcd1174caf9..f92a3181019 100644 --- a/mysql-test/main/subselect.result +++ b/mysql-test/main/subselect.result @@ -345,7 +345,7 @@ patient_uq clinic_uq explain extended select * from t6 where exists (select * from t7 where uq = clinic_uq); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t7 index PRIMARY PRIMARY 4 NULL 2 100.00 Using index -1 PRIMARY t6 ALL i1 NULL NULL NULL 4 75.00 Using where; Using join buffer (flat, BNL join) +1 PRIMARY t6 ref i1 i1 5 test.t7.uq 2 100.00 Warnings: Note 1276 Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1 Note 1003 select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t7` join `test`.`t6` where `test`.`t6`.`clinic_uq` = `test`.`t7`.`uq` @@ -1429,6 +1429,9 @@ drop table if exists t1; (SELECT 1 as a) UNION (SELECT 1) ORDER BY (SELECT a+0); a 1 +# +# IN subselect optimization test +# create table t1 (a int not null, b int, primary key (a)); create table t2 (a int not null, primary key (a)); create table t3 (a int not null, b int, primary key (a)); @@ -1486,7 +1489,7 @@ a explain extended select * from t2 where t2.a in (select a from 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 -1 PRIMARY t1 ref a a 5 test.t2.a 101 100.00 Using index; FirstMatch(t2) +1 PRIMARY t1 ref a a 5 test.t2.a 101 0.99 Using index; FirstMatch(t2) Warnings: Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where `test`.`t1`.`a` = `test`.`t2`.`a` select * from t2 where t2.a in (select a from t1 where t1.b <> 30); @@ -1496,7 +1499,7 @@ a explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30); 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 -1 PRIMARY t1 ref a a 5 test.t2.a 101 100.00 Using where; Using index; FirstMatch(t2) +1 PRIMARY t1 ref a a 5 test.t2.a 101 0.99 Using where; Using index; FirstMatch(t2) Warnings: Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where `test`.`t1`.`a` = `test`.`t2`.`a` and `test`.`t1`.`b` <> 30 select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); @@ -1506,8 +1509,8 @@ 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 a a 5 NULL 4 100.00 Using where; Using index -1 PRIMARY t3 index a a 5 NULL 3 100.00 Using where; Using index -1 PRIMARY t1 ref a a 10 test.t2.a,test.t3.a 116 100.00 Using index; FirstMatch(t2) +1 PRIMARY t3 range a a 5 NULL 3 100.00 Using where; Using index +1 PRIMARY t1 ref a a 10 test.t2.a,test.t3.a 116 0.29 Using index; FirstMatch(t2) Warnings: Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where `test`.`t1`.`b` = `test`.`t3`.`a` and `test`.`t1`.`a` = `test`.`t2`.`a` insert into t1 values (3,31); @@ -1523,7 +1526,7 @@ a explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30); 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 -1 PRIMARY t1 ref a a 5 test.t2.a 101 100.00 Using where; Using index; FirstMatch(t2) +1 PRIMARY t1 ref a a 5 test.t2.a 101 0.99 Using where; Using index; FirstMatch(t2) Warnings: Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1`) where `test`.`t1`.`a` = `test`.`t2`.`a` and `test`.`t1`.`b` <> 30 drop table t0, t1, t2, t3; @@ -1587,6 +1590,9 @@ Note 1003 (select 'tttt' AS `s1` from dual) s1 tttt drop table t1; +# +# IN optimisation test results +# create table t1 (s1 char(5), index s1(s1)); create table t2 (s1 char(5), index s1(s1)); insert into t1 values ('a1'),('a2'),('a3'); @@ -1614,21 +1620,21 @@ a3 1 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index -2 DEPENDENT SUBQUERY t2 index s1 s1 6 NULL 2 100.00 Using where; Using index +2 SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key Warnings: -Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` +Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1` explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index -2 DEPENDENT SUBQUERY t2 index s1 s1 6 NULL 2 100.00 Using where; Using index +2 SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key Warnings: -Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` +Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1` explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index -2 DEPENDENT SUBQUERY t2 index s1 s1 6 NULL 2 100.00 Using where; Using index +2 SUBQUERY t2 index_subquery s1 s1 6 func 2 100.00 Using index; Full scan on NULL key Warnings: -Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` +Note 1003 /* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1` explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL s1 6 NULL 3 100.00 Using index @@ -2420,22 +2426,23 @@ a 1 3 DROP TABLE t1; +# +# SELECT(EXISTS * ...)optimisation +# create table t1 (a int, b int); insert into t1 values (1,2),(3,4),(5,6),(7,8); -select * from t1 up where exists (select * from t1 where t1.a=up.a); -a b -1 2 -3 4 -5 6 -7 8 -explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a); +insert into t1 select seq,seq from seq_20_to_40; +select sum(a+b) from t1 up where exists (select * from t1 where t1.a=up.a); +sum(a+b) +1296 +explain extended select sum(a+b) from t1 up where exists (select * from t1 where t1.a=up.a); id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY up ALL NULL NULL NULL NULL 4 100.00 +1 PRIMARY up ALL NULL NULL NULL NULL 25 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00 -2 MATERIALIZED t1 ALL NULL NULL NULL NULL 4 100.00 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 25 100.00 Warnings: Note 1276 Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1 -Note 1003 select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` semi join (`test`.`t1`) where 1 +Note 1003 select sum(`test`.`up`.`a` + `test`.`up`.`b`) AS `sum(a+b)` from `test`.`t1` `up` semi join (`test`.`t1`) where 1 drop table t1; CREATE TABLE t1 (t1_a int); INSERT INTO t1 VALUES (1); @@ -3103,6 +3110,10 @@ retailerID statusID changed 0048 1 2006-01-06 12:37:50 0059 1 2006-01-06 12:37:50 drop table t1; +# +# Bug#21180 Subselect with index for both WHERE and ORDER BY +# produces empty result +# create table t1(a int, primary key (a)); insert into t1 values (10); create table t2 (a int primary key, b varchar(32), c int, unique key cb(c, b)); @@ -3118,7 +3129,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system PRIMARY NULL NULL NULL 1 1 PRIMARY r const PRIMARY PRIMARY 4 const 1 -2 SUBQUERY t2 ref cb cb 5 const 1 Using where +2 SUBQUERY t2 range cb cb 40 NULL 3 Using where SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10; @@ -3130,7 +3141,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system PRIMARY NULL NULL NULL 1 1 PRIMARY r const PRIMARY PRIMARY 4 const 1 -2 SUBQUERY t2 ref cb cb 5 const 1 Using index condition; Using where +2 SUBQUERY t2 range cb cb 40 NULL 3 Using index condition SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899' ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10; @@ -4230,8 +4241,8 @@ INSERT INTO t2 VALUES (7), (5), (1), (3); SELECT id, st FROM t1 WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id); id st -3 FL 1 GA +3 FL 7 FL SELECT id, st FROM t1 WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id) @@ -4332,6 +4343,9 @@ SELECT ((a1,a2) IN (SELECT * FROM t2 WHERE b2 > 0)) IS NULL FROM t1; 0 0 DROP TABLE t1, t2; +# +# Bug#28076 inconsistent binary/varbinary comparison +# CREATE TABLE t1 (s1 BINARY(5), s2 VARBINARY(5)); INSERT INTO t1 VALUES (0x41,0x41), (0x42,0x42), (0x43,0x43); SELECT s1, s2 FROM t1 WHERE s2 IN (SELECT s1 FROM t1); @@ -4393,8 +4407,8 @@ CREATE INDEX I1 ON t1 (a); CREATE INDEX I2 ON t1 (b); EXPLAIN SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY t1 ALL I2 NULL NULL NULL 2 Using where -1 PRIMARY t1 ref I1 I1 2 test.t1.b 2 Using where; Using index; FirstMatch(t1) +1 PRIMARY t1 index I1 I1 2 NULL 2 Using where; Using index; LooseScan +1 PRIMARY t1 ref I2 I2 13 test.t1.a 2 Using index condition SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); a b CREATE TABLE t2 (a VARCHAR(1), b VARCHAR(10)); @@ -4403,15 +4417,15 @@ CREATE INDEX I1 ON t2 (a); CREATE INDEX I2 ON t2 (b); EXPLAIN SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2); id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY t2 ALL I2 NULL NULL NULL 2 Using where -1 PRIMARY t2 ref I1 I1 4 test.t2.b 2 Using where; Using index; FirstMatch(t2) +1 PRIMARY t2 index I1 I1 4 NULL 2 Using where; Using index; LooseScan +1 PRIMARY t2 ref I2 I2 13 test.t2.a 2 Using index condition SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2); a b EXPLAIN SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500); id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY t1 ALL I2 NULL NULL NULL 2 Using where -1 PRIMARY t1 ref I1 I1 2 test.t1.b 2 Using where; Using index; FirstMatch(t1) +1 PRIMARY t1 index I1 I1 2 NULL 2 Using where; Using index; LooseScan +1 PRIMARY t1 ref I2 I2 13 test.t1.a 2 Using index condition SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500); a b DROP TABLE t1,t2; @@ -4456,11 +4470,10 @@ EXPLAIN EXTENDED SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a)); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 4 100.00 -1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00 -2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 100.00 +1 PRIMARY t2 ALL NULL NULL NULL NULL 3 100.00 Using where; FirstMatch(t1); Using join buffer (flat, BNL join) Warnings: Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 -Note 1003 select 2 AS `2` from `test`.`t1` semi join (`test`.`t2`) where 1 +Note 1003 select 2 AS `2` from `test`.`t1` semi join (`test`.`t2`) where `test`.`t2`.`a` = `test`.`t1`.`a` EXPLAIN EXTENDED SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION (SELECT 1 FROM t2 WHERE t1.a = t2.a)); @@ -5707,6 +5720,7 @@ CREATE TABLE t1 (a int) ; INSERT INTO t1 VALUES (NULL), (1), (NULL), (2); CREATE TABLE t2 (a int, INDEX idx(a)) ; INSERT INTO t2 VALUES (NULL), (1), (NULL),(1000); +insert into t2 select seq from seq_3_to_100; SELECT * FROM t1 WHERE EXISTS (SELECT a FROM t2 USE INDEX () WHERE t2.a = t1.a); a @@ -5717,7 +5731,7 @@ WHERE EXISTS (SELECT a FROM t2 USE INDEX() WHERE t2.a = t1.a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 4 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 -2 MATERIALIZED t2 ALL NULL NULL NULL NULL 4 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 102 SELECT * FROM t1 WHERE EXISTS (SELECT a FROM t2 WHERE t2.a = t1.a); a @@ -5727,7 +5741,7 @@ SELECT * FROM t1 WHERE EXISTS (SELECT a FROM t2 WHERE t2.a = t1.a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 4 Using where -1 PRIMARY t2 ref idx idx 5 test.t1.a 2 Using index; FirstMatch(t1) +1 PRIMARY t2 ref idx idx 5 test.t1.a 11 Using index; FirstMatch(t1) DROP TABLE t1,t2; # # BUG#752992: Wrong results for a subquery with 'semijoin=on' |