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MDEV-5817 MySQL BUG#11825482: Broken key length calculation for btree index

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just as in 5.6 fix - copy the correct null-handling code from MyISAM
This commit is contained in:
Sergei Golubchik
2014-03-21 14:36:49 +01:00
parent a52e2c787d
commit f17831fa74
3 changed files with 79 additions and 0 deletions
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34
mysql-test/suite/heap/heap.result
View File

@ -758,6 +758,40 @@ SELECT * from t1;
id color ts
7 GREEN 2
DROP TABLE t1;
#
# BUG#11825482: Broken key length calculation for btree index
#
CREATE TABLE h1 (f1 VARCHAR(1), f2 INT NOT NULL,
UNIQUE KEY h1i (f1,f2) USING BTREE ) ENGINE=HEAP;
INSERT INTO h1 VALUES(NULL,0),(NULL,1);
SELECT 'wrong' as 'result' FROM dual WHERE ('h', 0) NOT IN (SELECT * FROM h1);
result
CREATE TABLE t1 (
pk int NOT NULL,
col_int_nokey INT,
col_varchar_nokey VARCHAR(1),
PRIMARY KEY (pk)
);
INSERT INTO t1 VALUES (19,5,'h'),(20,5,'h');
CREATE TABLE t2 (col_int_nokey INT);
INSERT INTO t2 VALUES (1),(2);
CREATE VIEW v1 AS
SELECT col_varchar_nokey, COUNT( col_varchar_nokey )
FROM t1
WHERE col_int_nokey <= 141 AND pk <= 4
;
SELECT col_int_nokey FROM t2
WHERE ('h', 0) NOT IN ( SELECT * FROM v1);
col_int_nokey
# shouldn't crash
EXPLAIN SELECT col_int_nokey FROM t2
WHERE ('h', 0) NOT IN ( SELECT * FROM v1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
2 SUBQUERY <derived3> ALL NULL NULL NULL NULL 2 Using where
3 DERIVED t1 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Using where
DROP TABLE t1,t2,h1;
DROP VIEW v1;
CREATE TABLE t1 (a int, index(a)) engine=heap min_rows=10 max_rows=100;
insert into t1 values(1);
select data_length,index_length from information_schema.tables where table_schema="test" and table_name="t1";

35
mysql-test/suite/heap/heap.test
View File

@ -510,6 +510,41 @@ DELETE FROM t1 WHERE ts = 1 AND color = 'GREEN';
SELECT * from t1;
DROP TABLE t1;
--echo #
--echo # BUG#11825482: Broken key length calculation for btree index
--echo #
CREATE TABLE h1 (f1 VARCHAR(1), f2 INT NOT NULL,
UNIQUE KEY h1i (f1,f2) USING BTREE ) ENGINE=HEAP;
INSERT INTO h1 VALUES(NULL,0),(NULL,1);
SELECT 'wrong' as 'result' FROM dual WHERE ('h', 0) NOT IN (SELECT * FROM h1);
CREATE TABLE t1 (
pk int NOT NULL,
col_int_nokey INT,
col_varchar_nokey VARCHAR(1),
PRIMARY KEY (pk)
);
INSERT INTO t1 VALUES (19,5,'h'),(20,5,'h');
CREATE TABLE t2 (col_int_nokey INT);
INSERT INTO t2 VALUES (1),(2);
CREATE VIEW v1 AS
SELECT col_varchar_nokey, COUNT( col_varchar_nokey )
FROM t1
WHERE col_int_nokey <= 141 AND pk <= 4
;
SELECT col_int_nokey FROM t2
WHERE ('h', 0) NOT IN ( SELECT * FROM v1);
--echo # shouldn't crash
EXPLAIN SELECT col_int_nokey FROM t2
WHERE ('h', 0) NOT IN ( SELECT * FROM v1);
DROP TABLE t1,t2,h1;
DROP VIEW v1;
# End of 5.1 tests
#