diff options
Diffstat (limited to 'mysql-test/r/select.result')
| -rw-r--r-- | mysql-test/r/select.result | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result index d0b2a575a32..fa030670d6e 100644 --- a/mysql-test/r/select.result +++ b/mysql-test/r/select.result @@ -4441,6 +4441,91 @@ SELECT 1 FROM t2 JOIN t1 ON 1=1 WHERE a != '1' AND NOT a >= b OR NOT ROW(b,a )<> ROW(a,a); 1 DROP TABLE t1,t2; +# +# Bug #49199: Optimizer handles incorrectly: +# field='const1' AND field='const2' in some cases + +CREATE TABLE t1(a DATETIME NOT NULL); +INSERT INTO t1 VALUES('2001-01-01'); +SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00'; +a +2001-01-01 00:00:00 +EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00'; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00 +Warnings: +Note 1003 select '2001-01-01 00:00:00' AS `a` from `test`.`t1` where 1 +DROP TABLE t1; +CREATE TABLE t1(a DATE NOT NULL); +INSERT INTO t1 VALUES('2001-01-01'); +SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00'; +a +2001-01-01 +EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00'; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00 +Warnings: +Note 1003 select '2001-01-01' AS `a` from `test`.`t1` where 1 +DROP TABLE t1; +CREATE TABLE t1(a TIMESTAMP NOT NULL); +INSERT INTO t1 VALUES('2001-01-01'); +SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00'; +a +2001-01-01 00:00:00 +EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a='2001-01-01 00:00:00'; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00 +Warnings: +Note 1003 select '2001-01-01 00:00:00' AS `a` from `test`.`t1` where 1 +DROP TABLE t1; +CREATE TABLE t1(a DATETIME NOT NULL, b DATE NOT NULL); +INSERT INTO t1 VALUES('2001-01-01', '2001-01-01'); +SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00'; +a b +2001-01-01 00:00:00 2001-01-01 +EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00'; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00 +Warnings: +Note 1003 select '2001-01-01 00:00:00' AS `a`,'2001-01-01' AS `b` from `test`.`t1` where 1 +DROP TABLE t1; +CREATE TABLE t1(a DATETIME NOT NULL, b VARCHAR(20) NOT NULL); +INSERT INTO t1 VALUES('2001-01-01', '2001-01-01'); +SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00'; +a b +EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01' AND a=b AND b='2001-01-01 00:00:00'; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables +Warnings: +Note 1003 select '2001-01-01 00:00:00' AS `a`,'2001-01-01' AS `b` from `test`.`t1` where 0 +SELECT * FROM t1 WHERE a='2001-01-01 00:00:00' AND a=b AND b='2001-01-01'; +a b +2001-01-01 00:00:00 2001-01-01 +EXPLAIN EXTENDED SELECT * FROM t1 WHERE a='2001-01-01 00:00:00' AND a=b AND b='2001-01-01'; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00 +Warnings: +Note 1003 select '2001-01-01 00:00:00' AS `a`,'2001-01-01' AS `b` from `test`.`t1` where 1 +DROP TABLE t1; +CREATE TABLE t1(a DATETIME NOT NULL, b DATE NOT NULL); +INSERT INTO t1 VALUES('2001-01-01', '2001-01-01'); +SELECT x.a, y.a, z.a FROM t1 x +JOIN t1 y ON x.a=y.a +JOIN t1 z ON y.a=z.a +WHERE x.a='2001-01-01' AND z.a='2001-01-01 00:00:00'; +a a a +2001-01-01 00:00:00 2001-01-01 00:00:00 2001-01-01 00:00:00 +EXPLAIN EXTENDED SELECT x.a, y.a, z.a FROM t1 x +JOIN t1 y ON x.a=y.a +JOIN t1 z ON y.a=z.a +WHERE x.a='2001-01-01' AND z.a='2001-01-01 00:00:00'; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE x system NULL NULL NULL NULL 1 100.00 +1 SIMPLE y system NULL NULL NULL NULL 1 100.00 +1 SIMPLE z system NULL NULL NULL NULL 1 100.00 +Warnings: +Note 1003 select '2001-01-01 00:00:00' AS `a`,'2001-01-01 00:00:00' AS `a`,'2001-01-01 00:00:00' AS `a` from `test`.`t1` `x` join `test`.`t1` `y` join `test`.`t1` `z` where 1 +DROP TABLE t1; End of 5.0 tests create table t1(a INT, KEY (a)); INSERT INTO t1 VALUES (1),(2),(3),(4),(5); |