diff options
Diffstat (limited to 'mysql-test/r/explain.result')
| -rw-r--r-- | mysql-test/r/explain.result | 91 |
1 files changed, 59 insertions, 32 deletions
diff --git a/mysql-test/r/explain.result b/mysql-test/r/explain.result index 3aa189f4a9d..3de741b5efb 100644 --- a/mysql-test/r/explain.result +++ b/mysql-test/r/explain.result @@ -24,9 +24,9 @@ explain select * from t1 use key (str,str) where str="foo"; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 const str str 11 const 1 explain select * from t1 use key (str,str,foo) where str="foo"; -ERROR HY000: Key 'foo' doesn't exist in table 't1' +ERROR 42000: Key 'foo' doesn't exist in table 't1' explain select * from t1 ignore key (str,str,foo) where str="foo"; -ERROR HY000: Key 'foo' doesn't exist in table 't1' +ERROR 42000: Key 'foo' doesn't exist in table 't1' drop table t1; explain select 1; id select_type table type possible_keys key key_len ref rows Extra @@ -61,28 +61,28 @@ create table t1(f1 int, f2 int); insert into t1 values (1,1); create view v1 as select * from t1 where f1=1; explain extended select * from v1 where f2=1; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 system NULL NULL NULL NULL 1 +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 '1' AS `f1`,'1' AS `f2` from `test`.`t1` where 1 explain extended select * from t1 where 0; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE +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 Warnings: Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` where 0 explain extended select * from t1 where 1; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 system NULL NULL NULL NULL 1 +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 '1' AS `f1`,'1' AS `f2` from `test`.`t1` where 1 explain extended select * from t1 having 0; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible HAVING +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 HAVING Warnings: Note 1003 select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2` from `test`.`t1` having 0 explain extended select * from t1 having 1; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 system NULL NULL NULL NULL 1 +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 '1' AS `f1`,'1' AS `f2` from `test`.`t1` having 1 drop view v1; @@ -113,45 +113,72 @@ INSERT INTO t1 VALUES (1),(2); INSERT INTO t2 VALUES (1),(2); EXPLAIN EXTENDED SELECT 1 FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1; -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 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort -2 DERIVED t2 ALL NULL NULL NULL NULL 2 +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00 +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` EXPLAIN EXTENDED SELECT 1 FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1; -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 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort -2 DERIVED t2 ALL NULL NULL NULL NULL 2 +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00 +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` prepare s1 from 'EXPLAIN EXTENDED SELECT 1 FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1'; execute s1; -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 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort -2 DERIVED t2 ALL NULL NULL NULL NULL 2 +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00 +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` prepare s1 from 'EXPLAIN EXTENDED SELECT 1 FROM (SELECT COUNT(DISTINCT t1.a) FROM t1,t2 GROUP BY t1.a) AS s1'; execute s1; -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 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort -2 DERIVED t2 ALL NULL NULL NULL NULL 2 +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00 +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` execute s1; -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 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort -2 DERIVED t2 ALL NULL NULL NULL NULL 2 +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00 +2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` DROP TABLE t1,t2; +# +# Bug#37870: Usage of uninitialized value caused failed assertion. +# +create table t1 (dt datetime not null, t time not null); +create table t2 (dt datetime not null); +insert into t1 values ('2001-01-01 1:1:1', '1:1:1'), +('2001-01-01 1:1:1', '1:1:1'); +insert into t2 values ('2001-01-01 1:1:1'), ('2001-01-01 1:1:1'); +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 +2 DEPENDENT SUBQUERY INNR ALL NULL NULL NULL NULL 2 Using where +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 +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 +2 DEPENDENT SUBQUERY INNR ALL NULL NULL NULL NULL 2 Using where +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 +2001-01-01 01:01:01 +2001-01-01 01:01:01 +drop tables t1, t2; |