diff options
Diffstat (limited to 'mysql-test/r/subselect.result')
| -rw-r--r-- | mysql-test/r/subselect.result | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result index 5b2176ac872..f4e07636467 100644 --- a/mysql-test/r/subselect.result +++ b/mysql-test/r/subselect.result @@ -734,7 +734,7 @@ id 2 EXPLAIN EXTENDED SELECT * FROM t2 WHERE id IN (SELECT 1+(select 1)); id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY t2 ref id id 5 const 1 100.00 Using index +1 PRIMARY t2 ref id id 5 const 1 100.00 Using where; Using index Warnings: Note 1249 Select 3 was reduced during optimization Note 1249 Select 2 was reduced during optimization @@ -3561,6 +3561,30 @@ ORDER BY t1.t DESC LIMIT 1); i1 i2 t i1 i2 t 24 1 2005-05-27 12:40:30 24 1 2006-06-20 12:29:40 DROP TABLE t1, t2; +CREATE TABLE t1 (i INT); +(SELECT i FROM t1) UNION (SELECT i FROM t1); +i +SELECT sql_no_cache * FROM t1 WHERE NOT EXISTS +( +(SELECT i FROM t1) UNION +(SELECT i FROM t1) +); +i +SELECT * FROM t1 +WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1))); +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UNION (SELECT i FROM t1)))' at line 2 +explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12)) +from t1; +ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'union (select t12.i from t1 t12)) +from t1' at line 1 +explain select * from t1 where not exists +((select t11.i from t1 t11) union (select t12.i from t1 t12)); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 system NULL NULL NULL NULL 0 const row not found +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +3 UNION NULL NULL NULL NULL NULL NULL NULL no matching row in const table +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL +DROP TABLE t1; CREATE TABLE t1 (a VARCHAR(250), b INT auto_increment, PRIMARY KEY (b)); insert into t1 (a) values (FLOOR(rand() * 100)); insert into t1 (a) select FLOOR(rand() * 100) from t1; @@ -4248,6 +4272,35 @@ out_a MIN(b) 1 2 2 4 DROP TABLE t1; +CREATE TABLE t1 (a INT); +CREATE TABLE t2 (a INT); +INSERT INTO t1 VALUES (1),(2); +INSERT INTO t2 VALUES (1),(2); +SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a)); +2 +2 +2 +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 2 100.00 Using where +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where +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` where <expr_cache><`test`.`t1`.`a`>(exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`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)); +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 +2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where +3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 2 100.00 Using where +NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL +Warnings: +Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 +Note 1276 Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1 +Note 1003 select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)))) +DROP TABLE t1,t2; create table t0(a int); insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); create table t1(f11 int, f12 int); |