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5.2->5.3 merge

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This commit is contained in:
Sergei Golubchik 2011-11-12 18:08:12 +01:00
commit 557f0d3ad0
15 changed files with 75 additions and 36 deletions
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19
mysql-test/r/table_elim.result
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@ -567,3 +567,22 @@ id select_type table type possible_keys key key_len ref rows Extra
# ^^ The above must not produce a QEP of t3,t5,t2,t4
# as that violates the "no interleaving of outer join nests" rule.
DROP TABLE t1,t2,t3,t4,t5;
#
# BUG#884184: Wrong result with RIGHT JOIN + derived_merge
#
CREATE TABLE t1 (a int(11), b varchar(1)) ;
INSERT IGNORE INTO t1 VALUES (0,'g');
CREATE TABLE t3 ( a varchar(1)) ;
INSERT IGNORE INTO t3 VALUES ('g');
CREATE TABLE t2 ( a int(11) NOT NULL, PRIMARY KEY (a)) ;
create view v1 as SELECT t1.* FROM t1 LEFT JOIN t2 ON ( t1.a = t2.a ) WHERE t2.a <> 0;
SELECT alias1.* FROM t3 LEFT JOIN v1 as alias1 ON ( t3.a = alias1.b );
a b
NULL NULL
EXPLAIN SELECT alias1.* FROM t3 LEFT JOIN v1 as alias1 ON ( t3.a = alias1.b );
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 system NULL NULL NULL NULL 1
1 SIMPLE t1 ALL NULL NULL NULL NULL 1 Using where
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.a 1 Using where; Using index
drop view v1;
DROP TABLE t1,t2,t3;