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Diffstat (limited to 'mysql-test/suite/heap/heap_hash.result')
| -rw-r--r-- | mysql-test/suite/heap/heap_hash.result | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/mysql-test/suite/heap/heap_hash.result b/mysql-test/suite/heap/heap_hash.result index ac62427c81c..55d43588403 100644 --- a/mysql-test/suite/heap/heap_hash.result +++ b/mysql-test/suite/heap/heap_hash.result @@ -382,6 +382,26 @@ INSERT INTO t1 VALUES('A ', 'A '); ERROR 23000: Duplicate entry 'A -A ' for key 'key1' DROP TABLE t1; End of 5.0 tests +# +# MDEV-568 (AKA LP BUG#1007981, AKA MySQL bug#44771) +# Wrong result for a hash index look-up if the index is unique and +# the key is NULL +# +CREATE TABLE t1 ( pk INT PRIMARY KEY, val INT, UNIQUE KEY USING HASH(val)) ENGINE=MEMORY; +INSERT INTO t1 VALUES (1, NULL); +INSERT INTO t1 VALUES (2, NULL); +INSERT INTO t1 VALUES (3, 1); +INSERT INTO t1 VALUES (4, NULL); +EXPLAIN SELECT * FROM t1 WHERE val IS NULL; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ref val val 5 const 1 Using where +SELECT * FROM t1 WHERE val IS NULL; +pk val +4 NULL +2 NULL +1 NULL +drop table t1; +End of 5.2 tests # bit index in heap tables create table t1 (a bit(63) not null) engine=heap; insert into t1 values (869751),(736494),(226312),(802616),(728912); |