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| author | Igor Babaev <igor@askmonty.org> | 2011-12-29 15:09:20 -0800 |
|---|---|---|
| committer | Igor Babaev <igor@askmonty.org> | 2011-12-29 15:09:20 -0800 |
| commit | 40c42468bcbe215a971f93edb9af27545156b8a7 (patch) | |
| tree | 864e256a55d6ddde926043e7dfc503d4f75e57b6 /mysql-test/suite/vcol/r/vcol_select_myisam.result | |
| parent | 5ab628e0240ae280c0b5b03e1d64b2242cd7265e (diff) | |
| download | mariadb-git-40c42468bcbe215a971f93edb9af27545156b8a7.tar.gz | |
Fixed LP bug #806057.
A table expression with a natural join or a USING clause is transformed
into an equivalent expression with equi-join ON conditions. If a reference
to a virtual column happened to occur only in these generated equi-join
conditions then it was not erroneously marked in the TABLE::vcol_set bitmap.
This could lead to wrong results for queries containing natural join
expressions or USING clauses.
Diffstat (limited to 'mysql-test/suite/vcol/r/vcol_select_myisam.result')
| -rw-r--r-- | mysql-test/suite/vcol/r/vcol_select_myisam.result | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/mysql-test/suite/vcol/r/vcol_select_myisam.result b/mysql-test/suite/vcol/r/vcol_select_myisam.result index 45e4defd315..04ae7e0f7cd 100644 --- a/mysql-test/suite/vcol/r/vcol_select_myisam.result +++ b/mysql-test/suite/vcol/r/vcol_select_myisam.result @@ -262,3 +262,33 @@ NULL explain select sum(c) from t1 group by b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using temporary; Using filesort +# +# Bug #806057: join with USING over a virtual column +# +CREATE TABLE t1 (b int); +INSERT INTO t1 VALUES (NULL),( 78), (185), (0), (154); +CREATE TABLE t2 (a int, b int AS (a) VIRTUAL); +INSERT INTO t2 VALUES (187,187), (9,9), (187,187); +Warnings: +Warning 1647 The value specified for computed column 'b' in table 't2' ignored +Warning 1647 The value specified for computed column 'b' in table 't2' ignored +Warning 1647 The value specified for computed column 'b' in table 't2' ignored +EXPLAIN EXTENDED +SELECT * FROM t1 JOIN t2 USING (b); +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 +1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer +Warnings: +Note 1003 select `test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where (`test`.`t1`.`b` = `test`.`t2`.`b`) +SELECT * FROM t1 JOIN t2 USING (b); +b a +EXPLAIN EXTENDED +SELECT * FROM t1 NATURAL JOIN t2; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 +1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer +Warnings: +Note 1003 select `test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where (`test`.`t1`.`b` = `test`.`t2`.`b`) +SELECT * FROM t1 NATURAL JOIN t2; +b a +DROP TABLE t1,t2; |