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BUG#34945: "ref_or_null queries that are null_rejecting and have a null value crash mysql"

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- Apply Eric Bergen's patch: in join_read_always_key(), move ha_index_init() call
  to before the late NULLs filtering code.
- Backport function comments from 6.0.


mysql-test/r/null_key.result:
  BUG#34945: "ref_or_null queries that are null_rejecting and have a null value crash mysql"
  - Testcase
mysql-test/t/null_key.test:
  BUG#34945: "ref_or_null queries that are null_rejecting and have a null value crash mysql"
  - Testcase
sql/sql_select.cc:
  BUG#34945: "ref_or_null queries that are null_rejecting and have a null value crash mysql"
  - Apply Eric Bergen's patch: in join_read_always_key(), move ha_index_init() call
    to before the late NULLs filtering code.
  - Backport function comments from 6.0
This commit is contained in:
unknown
2008-03-03 20:35:44 +03:00
parent 2cb35cd680
commit cd9f2d1c28
3 changed files with 67 additions and 3 deletions
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18
mysql-test/r/null_key.result
View File

@@ -429,3 +429,21 @@ Handler_read_prev 0
Handler_read_rnd 0
Handler_read_rnd_next 5
DROP TABLE t1,t2,t3,t4;
CREATE TABLE t1 (
a int(11) default NULL,
b int(11) default NULL,
KEY a (a,b)
);
INSERT INTO t1 VALUES (0,10),(0,11),(0,12);
CREATE TABLE t2 (
a int(11) default NULL,
b int(11) default NULL,
KEY a (a)
);
INSERT INTO t2 VALUES (3,NULL),(3,11),(3,12);
SELECT * FROM t2 inner join t1 WHERE ( t1.a = 0 OR t1.a IS NULL) AND t2.a = 3 AND t2.b = t1.b;
a b a b
3 11 0 11
3 12 0 12
drop table t1, t2;
End of 5.0 tests