mirror of
https://github.com/MariaDB/server.git
synced 2025-01-29 10:14:19 +01:00
Fixed LP bug #879882.
This bug happened because the function Item_cond::eval_not_null_tables erroneously did not initialize the value of not_null_tables_cache.
This commit is contained in:
parent
2b173bf894
commit
391c5db1fc
3 changed files with 119 additions and 0 deletions
|
@ -1631,4 +1631,74 @@ SET SESSION join_cache_level = DEFAULT;
|
|||
SET SESSION join_buffer_size = DEFAULT;
|
||||
DROP VIEW v3;
|
||||
DROP TABLE t1,t2,t3,t4,t5;
|
||||
#
|
||||
# Bug #879882: right join within mergeable derived table
|
||||
#
|
||||
CREATE TABLE t1 (a varchar(1));
|
||||
INSERT INTO t1 VALUES ('c'), ('a');
|
||||
CREATE TABLE t2 (a int, b int, c varchar(1));
|
||||
INSERT INTO t2 VALUES (29,8,'c'), (39,7,'b');
|
||||
CREATE TABLE t3 (b int);
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b AND t.c = t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t3 system NULL NULL NULL NULL 0 0.00 const row not found
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join)
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t1`.`a` AS `a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on(multiple equal(NULL, `test`.`t2`.`a`)) where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and `test`.`t2`.`b`)
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b AND t.c = t1.a;
|
||||
b c a
|
||||
8 c c
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b <> 0 AND t.c = t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t3 system NULL NULL NULL NULL 0 0.00 const row not found
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join)
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t1`.`a` AS `a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on(multiple equal(NULL, `test`.`t2`.`a`)) where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (`test`.`t2`.`b` <> 0))
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b <> 0 AND t.c = t1.a;
|
||||
b c a
|
||||
8 c c
|
||||
INSERT INTO t3 VALUES (100), (200);
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b AND t.c = t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join)
|
||||
1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t1`.`a` AS `a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`b` = `test`.`t2`.`a`)) where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and `test`.`t2`.`b`)
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b AND t.c = t1.a;
|
||||
b c a
|
||||
8 c c
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b <> 0 AND t.c = t1.a;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (flat, BNL join)
|
||||
1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
Warnings:
|
||||
Note 1003 select `test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t1`.`a` AS `a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`b` = `test`.`t2`.`a`)) where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (`test`.`t2`.`b` <> 0))
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b <> 0 AND t.c = t1.a;
|
||||
b c a
|
||||
8 c c
|
||||
DROP TABLE t1,t2,t3;
|
||||
set optimizer_switch=@exit_optimizer_switch;
|
||||
|
|
|
@ -1059,5 +1059,53 @@ SET SESSION join_buffer_size = DEFAULT;
|
|||
DROP VIEW v3;
|
||||
DROP TABLE t1,t2,t3,t4,t5;
|
||||
|
||||
--echo #
|
||||
--echo # Bug #879882: right join within mergeable derived table
|
||||
--echo #
|
||||
|
||||
CREATE TABLE t1 (a varchar(1));
|
||||
INSERT INTO t1 VALUES ('c'), ('a');
|
||||
|
||||
CREATE TABLE t2 (a int, b int, c varchar(1));
|
||||
INSERT INTO t2 VALUES (29,8,'c'), (39,7,'b');
|
||||
|
||||
CREATE TABLE t3 (b int);
|
||||
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b AND t.c = t1.a;
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b AND t.c = t1.a;
|
||||
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b <> 0 AND t.c = t1.a;
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b <> 0 AND t.c = t1.a;
|
||||
|
||||
INSERT INTO t3 VALUES (100), (200);
|
||||
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b AND t.c = t1.a;
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b AND t.c = t1.a;
|
||||
|
||||
EXPLAIN EXTENDED
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b <> 0 AND t.c = t1.a;
|
||||
SELECT t.b, t.c, t1.a
|
||||
FROM t1, (SELECT t2.b, t2.c FROM t3 RIGHT JOIN t2 ON t2.a = t3.b) AS t
|
||||
WHERE t.b <> 0 AND t.c = t1.a;
|
||||
|
||||
DROP TABLE t1,t2,t3;
|
||||
|
||||
# The following command must be the last one the file
|
||||
set optimizer_switch=@exit_optimizer_switch;
|
||||
|
|
|
@ -4195,6 +4195,7 @@ Item_cond::eval_not_null_tables(uchar *opt_arg)
|
|||
{
|
||||
Item *item;
|
||||
List_iterator<Item> li(list);
|
||||
not_null_tables_cache= (table_map) 0;
|
||||
and_tables_cache= ~(table_map) 0;
|
||||
while ((item=li++))
|
||||
{
|
||||
|
|
Loading…
Add table
Reference in a new issue