diff options
Diffstat (limited to 'mysql-test/r/subselect3_jcl6.result')
| -rw-r--r-- | mysql-test/r/subselect3_jcl6.result | 56 |
1 files changed, 55 insertions, 1 deletions
diff --git a/mysql-test/r/subselect3_jcl6.result b/mysql-test/r/subselect3_jcl6.result index d24c1baa814..0019a82f2dd 100644 --- a/mysql-test/r/subselect3_jcl6.result +++ b/mysql-test/r/subselect3_jcl6.result @@ -121,6 +121,7 @@ show status like '%Handler_read%'; Variable_name Value Handler_read_first 0 Handler_read_key 0 +Handler_read_last 0 Handler_read_next 0 Handler_read_prev 0 Handler_read_rnd 0 @@ -885,7 +886,7 @@ Level Code Message Note 1276 Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #2 Note 1276 Field or reference 'test.t1.c' of SELECT #3 was resolved in SELECT #2 Error 1054 Unknown column 'c' in 'field list' -Note 1003 select `c` AS `c` from (select <expr_cache><count(`test`.`t1`.`a`),`test`.`t1`.`c`>((select count(`test`.`t1`.`a`) from (select count(`test`.`t1`.`b`) AS `COUNT(b)` from `test`.`t1`) `x` group by `t1`.`c`)) AS `(SELECT COUNT(a) FROM +Note 1003 select `c` AS `c` from (select <expr_cache><count(`test`.`t1`.`a`),`test`.`t1`.`c`>((select count(`test`.`t1`.`a`) from dual group by `t1`.`c`)) AS `(SELECT COUNT(a) FROM (SELECT COUNT(b) FROM t1) AS x GROUP BY c )` from `test`.`t1` group by `test`.`t1`.`b`) `y` DROP TABLE t1; @@ -1284,6 +1285,8 @@ id select_type table type possible_keys key key_len ref rows Extra 2 SUBQUERY t2 ALL NULL NULL NULL NULL 100 set @save_optimizer_search_depth=@@optimizer_search_depth; set @@optimizer_search_depth=63; +Warnings: +Warning 1287 'optimizer-search-depth=63' is deprecated and will be removed in a future release. Please use a search depth less than 63 instead explain select * from t1 where (a,b) in (select a,b from t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 10 @@ -1431,6 +1434,57 @@ CALL p1; ERROR 42S22: Unknown column 'f1' in 'where clause' DROP PROCEDURE p1; DROP TABLE t1, t2; +End of 5.3 tests +# +# BUG#48920: COUNT DISTINCT returns 1 for NULL values when in a subquery +# in the select list +# + +CREATE TABLE t1 ( +i int(11) DEFAULT NULL, +v varchar(1) DEFAULT NULL +); + +INSERT INTO t1 VALUES (8,'v'); +INSERT INTO t1 VALUES (9,'r'); +INSERT INTO t1 VALUES (NULL,'y'); + +CREATE TABLE t2 ( +i int(11) DEFAULT NULL, +v varchar(1) DEFAULT NULL, +KEY i_key (i) +); + +INSERT INTO t2 VALUES (NULL,'r'); +INSERT INTO t2 VALUES (0,'c'); +INSERT INTO t2 VALUES (0,'o'); +INSERT INTO t2 VALUES (2,'v'); +INSERT INTO t2 VALUES (7,'c'); + +SELECT i, v, (SELECT COUNT(DISTINCT i) +FROM t1 +WHERE v = t2.v) as subsel +FROM t2; +i v subsel +NULL r 1 +0 c 0 +0 o 0 +2 v 1 +7 c 0 + +EXPLAIN EXTENDED +SELECT i, v, (SELECT COUNT(DISTINCT i) +FROM t1 +WHERE v = t2.v) as subsel +FROM t2; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 +2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where +Warnings: +Note 1276 Field or reference 'test.t2.v' of SELECT #2 was resolved in SELECT #1 +Note 1003 select `test`.`t2`.`i` AS `i`,`test`.`t2`.`v` AS `v`,<expr_cache><`test`.`t2`.`v`>((select count(distinct `test`.`t1`.`i`) from `test`.`t1` where (`test`.`t1`.`v` = `test`.`t2`.`v`))) AS `subsel` from `test`.`t2` +DROP TABLE t1,t2; +End of 5.6 tests set join_cache_level=default; show variables like 'join_cache_level'; Variable_name Value |