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5.3->5.5 merge

This commit is contained in:
Sergei Golubchik
2012-11-22 10:19:31 +01:00
61 changed files with 1701 additions and 160 deletions

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@ -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);

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@ -285,6 +285,23 @@ DROP TABLE t1;
--echo End of 5.0 tests
--echo #
--echo # MDEV-568 (AKA LP BUG#1007981, AKA MySQL bug#44771)
--echo # Wrong result for a hash index look-up if the index is unique and
--echo # the key is NULL
--echo #
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;
SELECT * FROM t1 WHERE val IS NULL;
drop table t1;
--echo End of 5.2 tests
-- echo # bit index in heap tables
create table t1 (a bit(63) not null) engine=heap;