Merge 5.3->5.5

1 files changed, 37 insertions, 0 deletions

diff --git a/mysql-test/t/select.test b/mysql-test/t/select.test
index af507b1f7ef..b036cc6bc01 100644
--- a/mysql-test/t/select.test
+++ b/mysql-test/t/select.test
@@ -4289,6 +4289,7 @@ SELECT f1 FROM t1 GROUP BY 1;
 SELECT f1 FROM t1 GROUP BY '123' = 'abc';
 SELECT 1 FROM t1 GROUP BY 1;
 drop table t1;
+set sql_buffer_result= 0;
 
 
 --echo #
@@ -4479,5 +4480,41 @@ WHERE ( NOT (Use_leap_seconds <= Use_leap_seconds AND Time_zone_id != 1)
      OR Time_zone_id <> Time_zone_id ) 
   AND Use_leap_seconds <> 'N';
 
+--echo #
+--echo # Bug mdev-4274: result of simplification of OR badly merged
+--echo #                into embedding AND  
+--echo #
+
+CREATE TABLE t1 (a int, b int, INDEX idx(b)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (8,8);
+
+CREATE TABLE t2 (c int, INDEX idx(c)) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (8), (9);
+
+EXPLAIN EXTENDED
+SELECT * FROM t1 INNER JOIN t2 ON ( c = a ) 
+  WHERE 1 IS NULL OR b < 33 AND b = c;
+SELECT * FROM t1 INNER JOIN t2 ON ( c = a ) 
+  WHERE 1 IS NULL OR b < 33 AND b = c;
+
+DROP TABLE t1,t2;
+
+--echo #
+--echo # Bug mdev-4413: another manifestations of bug mdev-2474
+--echo #                (valgrind complains)
+--echo #
+
+CREATE TABLE t1 (a int, b int) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (7,1);
+
+CREATE TABLE t2 (c int) ENGINE=MyISAM;
+INSERT INTO t2 VALUES (0), (8);
+
+SELECT * FROM t1, t2 
+  WHERE c = a AND
+        ( 0 OR ( b BETWEEN 45 AND 300 OR a > 45 AND a < 100 ) AND b = c );
+
+DROP TABLE t1, t2;
+
 --echo End of 5.3 tests