Merge 5.3->5.5

5 files changed, 99 insertions, 1 deletions

diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result
index 5e98f2852da..2bdfee36aab 100644
--- a/mysql-test/r/select.result
+++ b/mysql-test/r/select.result
@@ -5444,4 +5444,29 @@ SELECT * FROM t1, t2
 WHERE i1 = i2 AND ( FALSE OR ( j1 > 27 AND j1 < 100 OR j1 <= 3 ) AND j1 = i2 );
 i1	j1	i2
 DROP TABLE t1,t2;
+#
+# Bug mdev-4971: equality propagation after merging degenerate 
+#                disjunction into embedding AND level 
+#
+CREATE TABLE t1 (pk1 int, a1 int, b1 int, PRIMARY KEY(pk1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1,10,100), (2,20,200) ;
+CREATE TABLE t2 (pk2 int, a2 int, PRIMARY KEY(pk2)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,1);
+SELECT * FROM t1, t2
+WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+pk1	a1	b1	pk2	a2
+EXPLAIN EXTENDED
+SELECT * FROM t1, t2
+WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t2	system	PRIMARY	NULL	NULL	NULL	1	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`pk1` AS `pk1`,`test`.`t1`.`a1` AS `a1`,`test`.`t1`.`b1` AS `b1`,1 AS `pk2`,1 AS `a2` from `test`.`t1` where ((`test`.`t1`.`a1` = 1) and ((`test`.`t1`.`b1` = 6) or 0))
+INSERT INTO t1 VALUES (3,1,6);
+SELECT * FROM t1, t2
+WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+pk1	a1	b1	pk2	a2
+3	1	6	1	1
+DROP TABLE t1,t2;
 End of 5.3 tests
diff --git a/mysql-test/r/select_jcl6.result b/mysql-test/r/select_jcl6.result
index e6f5ab566c0..04712c8f85e 100644
--- a/mysql-test/r/select_jcl6.result
+++ b/mysql-test/r/select_jcl6.result
@@ -5455,6 +5455,31 @@ SELECT * FROM t1, t2
 WHERE i1 = i2 AND ( FALSE OR ( j1 > 27 AND j1 < 100 OR j1 <= 3 ) AND j1 = i2 );
 i1	j1	i2
 DROP TABLE t1,t2;
+#
+# Bug mdev-4971: equality propagation after merging degenerate 
+#                disjunction into embedding AND level 
+#
+CREATE TABLE t1 (pk1 int, a1 int, b1 int, PRIMARY KEY(pk1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1,10,100), (2,20,200) ;
+CREATE TABLE t2 (pk2 int, a2 int, PRIMARY KEY(pk2)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,1);
+SELECT * FROM t1, t2
+WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+pk1	a1	b1	pk2	a2
+EXPLAIN EXTENDED
+SELECT * FROM t1, t2
+WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t2	system	PRIMARY	NULL	NULL	NULL	1	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`pk1` AS `pk1`,`test`.`t1`.`a1` AS `a1`,`test`.`t1`.`b1` AS `b1`,1 AS `pk2`,1 AS `a2` from `test`.`t1` where ((`test`.`t1`.`a1` = 1) and ((`test`.`t1`.`b1` = 6) or 0))
+INSERT INTO t1 VALUES (3,1,6);
+SELECT * FROM t1, t2
+WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+pk1	a1	b1	pk2	a2
+3	1	6	1	1
+DROP TABLE t1,t2;
 End of 5.3 tests
 set join_cache_level=default;
 show variables like 'join_cache_level';
diff --git a/mysql-test/r/select_pkeycache.result b/mysql-test/r/select_pkeycache.result
index 5e98f2852da..2bdfee36aab 100644
--- a/mysql-test/r/select_pkeycache.result
+++ b/mysql-test/r/select_pkeycache.result
@@ -5444,4 +5444,29 @@ SELECT * FROM t1, t2
 WHERE i1 = i2 AND ( FALSE OR ( j1 > 27 AND j1 < 100 OR j1 <= 3 ) AND j1 = i2 );
 i1	j1	i2
 DROP TABLE t1,t2;
+#
+# Bug mdev-4971: equality propagation after merging degenerate 
+#                disjunction into embedding AND level 
+#
+CREATE TABLE t1 (pk1 int, a1 int, b1 int, PRIMARY KEY(pk1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1,10,100), (2,20,200) ;
+CREATE TABLE t2 (pk2 int, a2 int, PRIMARY KEY(pk2)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,1);
+SELECT * FROM t1, t2
+WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+pk1	a1	b1	pk2	a2
+EXPLAIN EXTENDED
+SELECT * FROM t1, t2
+WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t2	system	PRIMARY	NULL	NULL	NULL	1	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+Warnings:
+Note	1003	select `test`.`t1`.`pk1` AS `pk1`,`test`.`t1`.`a1` AS `a1`,`test`.`t1`.`b1` AS `b1`,1 AS `pk2`,1 AS `a2` from `test`.`t1` where ((`test`.`t1`.`a1` = 1) and ((`test`.`t1`.`b1` = 6) or 0))
+INSERT INTO t1 VALUES (3,1,6);
+SELECT * FROM t1, t2
+WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+pk1	a1	b1	pk2	a2
+3	1	6	1	1
+DROP TABLE t1,t2;
 End of 5.3 tests
diff --git a/mysql-test/r/subselect_sj2_mat.result b/mysql-test/r/subselect_sj2_mat.result
index 74fea8957a9..fbe6db4edda 100644
--- a/mysql-test/r/subselect_sj2_mat.result
+++ b/mysql-test/r/subselect_sj2_mat.result
@@ -1399,7 +1399,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 2	MATERIALIZED	t3	hash_ALL	NULL	#hash#$hj	5	test.t2.i2	3	100.00	Using where; Using join buffer (flat, BNLH join)
 Warnings:
-Note	1003	select `test`.`t1`.`i1` AS `i1` from `test`.`t1` semi join (`test`.`t2` join `test`.`t3`) where ((`test`.`t3`.`i3` = `test`.`t2`.`i2`) and (`test`.`t1`.`i1` = `test`.`t2`.`i2`) and (`test`.`t3`.`i3` > 0))
+Note	1003	select `test`.`t1`.`i1` AS `i1` from `test`.`t1` semi join (`test`.`t2` join `test`.`t3`) where ((`test`.`t3`.`i3` = `test`.`t2`.`i2`) and (`test`.`t1`.`i1` = `test`.`t2`.`i2`) and (`test`.`t2`.`i2` > 0))
 SELECT * FROM t1 
 WHERE i1 IN (SELECT i3 FROM t2, t3 WHERE i3 > 0 AND i3 = i2 OR 1=2);
 i1
diff --git a/mysql-test/t/select.test b/mysql-test/t/select.test
index 47cd46f209e..3c56ef2837b 100644
--- a/mysql-test/t/select.test
+++ b/mysql-test/t/select.test
@@ -4582,5 +4582,28 @@ SELECT * FROM t1, t2
 
 DROP TABLE t1,t2;
 
+--echo #
+--echo # Bug mdev-4971: equality propagation after merging degenerate 
+--echo #                disjunction into embedding AND level 
+--echo #
+
+CREATE TABLE t1 (pk1 int, a1 int, b1 int, PRIMARY KEY(pk1)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (1,10,100), (2,20,200) ;
+
+CREATE TABLE t2 (pk2 int, a2 int, PRIMARY KEY(pk2)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (1,1);
+
+SELECT * FROM t1, t2
+  WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+EXPLAIN EXTENDED
+SELECT * FROM t1, t2
+  WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+
+INSERT INTO t1 VALUES (3,1,6);
+SELECT * FROM t1, t2
+  WHERE a1 = pk2 AND ( ( b1 = 6 OR a2 > 4 ) AND pk2 = a2 OR pk1 IS NULL );
+
+DROP TABLE t1,t2;
+
 --echo End of 5.3 tests