diff options
| -rw-r--r-- | mysql-test/r/subselect.result | 26 | ||||
| -rw-r--r-- | mysql-test/t/subselect.test | 20 | ||||
| -rw-r--r-- | sql/item_subselect.cc | 4 |
3 files changed, 50 insertions, 0 deletions
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result index 671e5d8f532..d3f7f631f70 100644 --- a/mysql-test/r/subselect.result +++ b/mysql-test/r/subselect.result @@ -4452,4 +4452,30 @@ WHERE 1 IN (SELECT id FROM t1) WITH CHECK OPTION; DELETE FROM v3; DROP VIEW v1,v2,v3; DROP TABLE t1,t2; +# +# Bug#45061: Incorrectly market field caused wrong result. +# +CREATE TABLE `C` ( +`int_nokey` int(11) NOT NULL, +`int_key` int(11) NOT NULL, +KEY `int_key` (`int_key`) +); +INSERT INTO `C` VALUES (9,9), (0,0), (8,6), (3,6), (7,6), (0,4), +(1,7), (9,4), (0,8), (9,4), (0,7), (5,5), (0,0), (8,5), (8,7), +(5,2), (1,8), (7,0), (0,9), (9,5); +SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`); +int_nokey int_key +9 9 +0 0 +5 5 +0 0 +EXPLAIN EXTENDED SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY C ALL NULL NULL NULL NULL 20 Using where +Warnings: +Note 1276 Field or reference 'test.C.int_nokey' of SELECT #2 was resolved in SELECT #1 +Note 1249 Select 2 was reduced during optimization +Note 1003 select `test`.`C`.`int_nokey` AS `int_nokey`,`test`.`C`.`int_key` AS `int_key` from `test`.`C` where (`test`.`C`.`int_nokey` = `test`.`C`.`int_key`) +DROP TABLE C; +# End of test for bug#45061. End of 5.0 tests. diff --git a/mysql-test/t/subselect.test b/mysql-test/t/subselect.test index 96e5738526b..63ab2710f89 100644 --- a/mysql-test/t/subselect.test +++ b/mysql-test/t/subselect.test @@ -3428,4 +3428,24 @@ DELETE FROM v3; DROP VIEW v1,v2,v3; DROP TABLE t1,t2; +--echo # +--echo # Bug#45061: Incorrectly market field caused wrong result. +--echo # +CREATE TABLE `C` ( + `int_nokey` int(11) NOT NULL, + `int_key` int(11) NOT NULL, + KEY `int_key` (`int_key`) +); + +INSERT INTO `C` VALUES (9,9), (0,0), (8,6), (3,6), (7,6), (0,4), +(1,7), (9,4), (0,8), (9,4), (0,7), (5,5), (0,0), (8,5), (8,7), +(5,2), (1,8), (7,0), (0,9), (9,5); + +SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`); +EXPLAIN EXTENDED SELECT * FROM C WHERE `int_key` IN (SELECT `int_nokey`); + +DROP TABLE C; +--echo # End of test for bug#45061. + + --echo End of 5.0 tests. diff --git a/sql/item_subselect.cc b/sql/item_subselect.cc index 13eeba3ea27..805669b3cfa 100644 --- a/sql/item_subselect.cc +++ b/sql/item_subselect.cc @@ -1145,6 +1145,10 @@ Item_in_subselect::single_value_transformer(JOIN *join, else { // it is single select without tables => possible optimization + // remove the dependence mark since the item is moved to upper + // select and is not outer anymore. + item->walk(&Item::remove_dependence_processor, + (byte *) select_lex->outer_select()); item= func->create(left_expr, item); // fix_field of item will be done in time of substituting substitution= item; |