Merge dator5.(none):/home/pappa/clean-mysql-5.1

into  dator5.(none):/home/pappa/push_tree_w28

14 files changed, 476 insertions, 34 deletions

diff --git a/mysql-test/r/partition.result b/mysql-test/r/partition.result
index 8bb895386bf..cbf45bdb40d 100644
--- a/mysql-test/r/partition.result
+++ b/mysql-test/r/partition.result
@@ -1082,4 +1082,49 @@ a
 2
 1
 drop table t1;
+create table t1 (a int) engine myisam
+partition by range (a)
+subpartition by hash (a)
+(partition p0 VALUES LESS THAN (1) DATA DIRECTORY = 'hello/master-data/tmpdata' INDEX DIRECTORY = 'hello/master-data/tmpinx'
+(SUBPARTITION subpart00, SUBPARTITION subpart01));
+hello/master-data/test:
+t1#P#p0#SP#subpart00.MYD
+t1#P#p0#SP#subpart00.MYI
+t1#P#p0#SP#subpart01.MYD
+t1#P#p0#SP#subpart01.MYI
+t1.frm
+t1.par
+hello/master-data/tmpdata:
+t1#P#p0#SP#subpart00.MYD
+t1#P#p0#SP#subpart01.MYD
+hello/master-data/tmpinx:
+t1#P#p0#SP#subpart00.MYI
+t1#P#p0#SP#subpart01.MYI
+ALTER TABLE t1 REORGANIZE PARTITION p0 INTO
+(partition p1 VALUES LESS THAN (1) DATA DIRECTORY = 'hello/master-data/tmpdata' INDEX DIRECTORY = 'hello/master-data/tmpinx'
+(SUBPARTITION subpart10, SUBPARTITION subpart11),
+partition p2 VALUES LESS THAN (2) DATA DIRECTORY = 'hello/master-data/tmpdata' INDEX DIRECTORY = 'hello/master-data/tmpinx'
+(SUBPARTITION subpart20, SUBPARTITION subpart21));
+hello/master-data/test:
+t1#P#p1#SP#subpart10.MYD
+t1#P#p1#SP#subpart10.MYI
+t1#P#p1#SP#subpart11.MYD
+t1#P#p1#SP#subpart11.MYI
+t1#P#p2#SP#subpart20.MYD
+t1#P#p2#SP#subpart20.MYI
+t1#P#p2#SP#subpart21.MYD
+t1#P#p2#SP#subpart21.MYI
+t1.frm
+t1.par
+hello/master-data/tmpdata:
+t1#P#p1#SP#subpart10.MYD
+t1#P#p1#SP#subpart11.MYD
+t1#P#p2#SP#subpart20.MYD
+t1#P#p2#SP#subpart21.MYD
+hello/master-data/tmpinx:
+t1#P#p1#SP#subpart10.MYI
+t1#P#p1#SP#subpart11.MYI
+t1#P#p2#SP#subpart20.MYI
+t1#P#p2#SP#subpart21.MYI
+drop table t1;
 End of 5.1 tests
diff --git a/mysql-test/r/partition_innodb.result b/mysql-test/r/partition_innodb.result
index 5e5931fdbf8..73745aad58b 100644
--- a/mysql-test/r/partition_innodb.result
+++ b/mysql-test/r/partition_innodb.result
@@ -107,3 +107,14 @@ select * from t1 where id = 'aaa';
 id
 aaa
 drop table t1;
+create table t1 (a int, b int, primary key (b,a))
+engine = innodb
+partition by hash (a);
+insert into t1 values (0, 0);
+insert into t1 values (1, 0);
+update t1 set b = b + 1 where a = 1;
+select * from t1;
+a	b
+0	0
+1	1
+drop table t1;
diff --git a/mysql-test/r/partition_mgm.result b/mysql-test/r/partition_mgm.result
index 0f2c8c57872..f64ffaff495 100644
--- a/mysql-test/r/partition_mgm.result
+++ b/mysql-test/r/partition_mgm.result
@@ -24,3 +24,15 @@ hello/master-data/test/t1#P#p0.MYD
 hello/master-data/test/t1#P#p0.MYI
 hello/master-data/test/t1.frm
 hello/master-data/test/t1.par
+drop table t1;
+create table t1 (a int)
+partition by list (a)
+subpartition by hash (a)
+(partition p11 values in (1,2),
+partition p12 values in (3,4));
+alter table t1 REORGANIZE partition p11, p12 INTO
+(partition p1 values in (1,2,3,4));
+alter table t1 REORGANIZE partition p1 INTO
+(partition p11 values in (1,2),
+partition p12 values in (3,4));
+drop table t1;
diff --git a/mysql-test/r/partition_order.result b/mysql-test/r/partition_order.result
index 7a1ab1d6dc8..78ff7cd3121 100644
--- a/mysql-test/r/partition_order.result
+++ b/mysql-test/r/partition_order.result
@@ -718,7 +718,11 @@ partitions 2
 partition x2 values less than (100));
 INSERT into t1 values (1, 1);
 INSERT into t1 values (5, NULL);
-INSERT into t1 values (2, 5);
+INSERT into t1 values (2, 4);
+INSERT into t1 values (3, 3);
+INSERT into t1 values (4, 5);
+INSERT into t1 values (7, 1);
+INSERT into t1 values (6, 6);
 INSERT into t1 values (30, 4);
 INSERT into t1 values (35, 2);
 INSERT into t1 values (40, NULL);
@@ -727,7 +731,55 @@ a	b
 5	NULL
 40	NULL
 1	1
+7	1
 35	2
+3	3
+2	4
 30	4
-2	5
+4	5
+6	6
+select * from t1 force index (b) where b < 10 ORDER BY b;
+a	b
+1	1
+7	1
+35	2
+3	3
+2	4
+30	4
+4	5
+6	6
+select * from t1 force index (b) where b < 10 ORDER BY b DESC;
+a	b
+6	6
+4	5
+2	4
+30	4
+3	3
+35	2
+7	1
+1	1
+drop table t1;
+create table t1 (a int not null, b int, c varchar(20), key (a,b,c))
+partition by range (b)
+(partition p0 values less than (5),
+partition p1 values less than (10));
+INSERT into t1 values (1,1,'1'),(2,2,'2'),(1,3,'3'),(2,4,'4'),(1,5,'5');
+INSERT into t1 values (2,6,'6'),(1,7,'7'),(2,8,'8'),(1,9,'9');
+INSERT into t1 values (1, NULL, NULL), (2, NULL, '10');
+select * from t1 where a = 1 order by a desc, b desc;
+a	b	c
+1	9	9
+1	7	7
+1	5	5
+1	3	3
+1	1	1
+1	NULL	NULL
+select * from t1 where a = 1 order by b desc;
+a	b	c
+1	9	9
+1	7	7
+1	5	5
+1	3	3
+1	1	1
+1	NULL	NULL
 drop table t1;
diff --git a/mysql-test/r/partition_range.result b/mysql-test/r/partition_range.result
index 3cbb517053a..9123c894f32 100644
--- a/mysql-test/r/partition_range.result
+++ b/mysql-test/r/partition_range.result
@@ -519,3 +519,115 @@ partition p3 values less than (1998),
 partition p4 values less than (1999),
 partition p5 values less than (2000));
 drop table t1;
+CREATE TABLE t1 (a date)
+PARTITION BY RANGE (TO_DAYS(a))
+(PARTITION p3xx VALUES LESS THAN (TO_DAYS('2004-01-01')),
+PARTITION p401 VALUES LESS THAN (TO_DAYS('2004-02-01')),
+PARTITION p402 VALUES LESS THAN (TO_DAYS('2004-03-01')),
+PARTITION p403 VALUES LESS THAN (TO_DAYS('2004-04-01')),
+PARTITION p404 VALUES LESS THAN (TO_DAYS('2004-05-01')),
+PARTITION p405 VALUES LESS THAN (TO_DAYS('2004-06-01')),
+PARTITION p406 VALUES LESS THAN (TO_DAYS('2004-07-01')),
+PARTITION p407 VALUES LESS THAN (TO_DAYS('2004-08-01')),
+PARTITION p408 VALUES LESS THAN (TO_DAYS('2004-09-01')),
+PARTITION p409 VALUES LESS THAN (TO_DAYS('2004-10-01')),
+PARTITION p410 VALUES LESS THAN (TO_DAYS('2004-11-01')),
+PARTITION p411 VALUES LESS THAN (TO_DAYS('2004-12-01')),
+PARTITION p412 VALUES LESS THAN (TO_DAYS('2005-01-01')),
+PARTITION p501 VALUES LESS THAN (TO_DAYS('2005-02-01')),
+PARTITION p502 VALUES LESS THAN (TO_DAYS('2005-03-01')),
+PARTITION p503 VALUES LESS THAN (TO_DAYS('2005-04-01')),
+PARTITION p504 VALUES LESS THAN (TO_DAYS('2005-05-01')),
+PARTITION p505 VALUES LESS THAN (TO_DAYS('2005-06-01')),
+PARTITION p506 VALUES LESS THAN (TO_DAYS('2005-07-01')),
+PARTITION p507 VALUES LESS THAN (TO_DAYS('2005-08-01')),
+PARTITION p508 VALUES LESS THAN (TO_DAYS('2005-09-01')),
+PARTITION p509 VALUES LESS THAN (TO_DAYS('2005-10-01')),
+PARTITION p510 VALUES LESS THAN (TO_DAYS('2005-11-01')),
+PARTITION p511 VALUES LESS THAN (TO_DAYS('2005-12-01')),
+PARTITION p512 VALUES LESS THAN (TO_DAYS('2006-01-01')),
+PARTITION p601 VALUES LESS THAN (TO_DAYS('2006-02-01')),
+PARTITION p602 VALUES LESS THAN (TO_DAYS('2006-03-01')),
+PARTITION p603 VALUES LESS THAN (TO_DAYS('2006-04-01')),
+PARTITION p604 VALUES LESS THAN (TO_DAYS('2006-05-01')),
+PARTITION p605 VALUES LESS THAN (TO_DAYS('2006-06-01')),
+PARTITION p606 VALUES LESS THAN (TO_DAYS('2006-07-01')),
+PARTITION p607 VALUES LESS THAN (TO_DAYS('2006-08-01')));
+INSERT INTO t1 VALUES ('2003-01-13'),('2003-06-20'),('2003-08-30');
+INSERT INTO t1 VALUES ('2003-04-13'),('2003-07-20'),('2003-10-30');
+INSERT INTO t1 VALUES ('2003-05-13'),('2003-11-20'),('2003-12-30');
+INSERT INTO t1 VALUES ('2004-01-13'),('2004-01-20'),('2004-01-30');
+INSERT INTO t1 VALUES ('2004-02-13'),('2004-02-20'),('2004-02-28');
+INSERT INTO t1 VALUES ('2004-03-13'),('2004-03-20'),('2004-03-30');
+INSERT INTO t1 VALUES ('2004-04-13'),('2004-04-20'),('2004-04-30');
+INSERT INTO t1 VALUES ('2004-05-13'),('2004-05-20'),('2004-05-30');
+INSERT INTO t1 VALUES ('2004-06-13'),('2004-06-20'),('2004-06-30');
+INSERT INTO t1 VALUES ('2004-07-13'),('2004-07-20'),('2004-07-30');
+INSERT INTO t1 VALUES ('2004-08-13'),('2004-08-20'),('2004-08-30');
+INSERT INTO t1 VALUES ('2004-09-13'),('2004-09-20'),('2004-09-30');
+INSERT INTO t1 VALUES ('2004-10-13'),('2004-10-20'),('2004-10-30');
+INSERT INTO t1 VALUES ('2004-11-13'),('2004-11-20'),('2004-11-30');
+INSERT INTO t1 VALUES ('2004-12-13'),('2004-12-20'),('2004-12-30');
+INSERT INTO t1 VALUES ('2005-01-13'),('2005-01-20'),('2005-01-30');
+INSERT INTO t1 VALUES ('2005-02-13'),('2005-02-20'),('2005-02-28');
+INSERT INTO t1 VALUES ('2005-03-13'),('2005-03-20'),('2005-03-30');
+INSERT INTO t1 VALUES ('2005-04-13'),('2005-04-20'),('2005-04-30');
+INSERT INTO t1 VALUES ('2005-05-13'),('2005-05-20'),('2005-05-30');
+INSERT INTO t1 VALUES ('2005-06-13'),('2005-06-20'),('2005-06-30');
+INSERT INTO t1 VALUES ('2005-07-13'),('2005-07-20'),('2005-07-30');
+INSERT INTO t1 VALUES ('2005-08-13'),('2005-08-20'),('2005-08-30');
+INSERT INTO t1 VALUES ('2005-09-13'),('2005-09-20'),('2005-09-30');
+INSERT INTO t1 VALUES ('2005-10-13'),('2005-10-20'),('2005-10-30');
+INSERT INTO t1 VALUES ('2005-11-13'),('2005-11-20'),('2005-11-30');
+INSERT INTO t1 VALUES ('2005-12-13'),('2005-12-20'),('2005-12-30');
+INSERT INTO t1 VALUES ('2006-01-13'),('2006-01-20'),('2006-01-30');
+INSERT INTO t1 VALUES ('2006-02-13'),('2006-02-20'),('2006-02-28');
+INSERT INTO t1 VALUES ('2006-03-13'),('2006-03-20'),('2006-03-30');
+INSERT INTO t1 VALUES ('2006-04-13'),('2006-04-20'),('2006-04-30');
+INSERT INTO t1 VALUES ('2006-05-13'),('2006-05-20'),('2006-05-30');
+INSERT INTO t1 VALUES ('2006-06-13'),('2006-06-20'),('2006-06-30');
+INSERT INTO t1 VALUES ('2006-07-13'),('2006-07-20'),('2006-07-30');
+SELECT * FROM t1
+WHERE a >= '2004-07-01' AND a <= '2004-09-30';
+a
+2004-07-13
+2004-07-20
+2004-07-30
+2004-08-13
+2004-08-20
+2004-08-30
+2004-09-13
+2004-09-20
+2004-09-30
+EXPLAIN PARTITIONS SELECT * FROM t1
+WHERE a >= '2004-07-01' AND a <= '2004-09-30';
+id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	p407,p408,p409	ALL	NULL	NULL	NULL	NULL	9	Using where
+SELECT * from t1
+WHERE (a >= '2004-07-01' AND a <= '2004-09-30') OR
+(a >= '2005-07-01' AND a <= '2005-09-30');
+a
+2004-07-13
+2004-07-20
+2004-07-30
+2004-08-13
+2004-08-20
+2004-08-30
+2004-09-13
+2004-09-20
+2004-09-30
+2005-07-13
+2005-07-20
+2005-07-30
+2005-08-13
+2005-08-20
+2005-08-30
+2005-09-13
+2005-09-20
+2005-09-30
+EXPLAIN PARTITIONS SELECT * from t1
+WHERE (a >= '2004-07-01' AND a <= '2004-09-30') OR
+(a >= '2005-07-01' AND a <= '2005-09-30');
+id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	p407,p408,p409,p507,p508,p509	ALL	NULL	NULL	NULL	NULL	18	Using where
+DROP TABLE t1;
diff --git a/mysql-test/t/partition.test b/mysql-test/t/partition.test
index 04519800ff6..7d88174304d 100644
--- a/mysql-test/t/partition.test
+++ b/mysql-test/t/partition.test
@@ -1261,4 +1261,49 @@ insert into t1 values (1),(2);
 select * from t1 ORDER BY a DESC;
 drop table t1;
 
+#
+# Bug 20770 Partitions: DATA DIRECTORY clause change in reorganize
+#                       doesn't remove old directory
+#
+--disable_query_log
+--exec mkdir $MYSQLTEST_VARDIR/master-data/tmpdata || true
+eval SET @data_dir = 'DATA DIRECTORY = ''$MYSQLTEST_VARDIR/master-data/tmpdata''';
+let $data_directory = `select @data_dir`;
+
+--exec mkdir $MYSQLTEST_VARDIR/master-data/tmpinx || true
+eval SET @inx_dir = 'INDEX DIRECTORY = ''$MYSQLTEST_VARDIR/master-data/tmpinx''';
+let $inx_directory = `select @inx_dir`;
+--enable_query_log
+
+--replace_result $MYSQLTEST_VARDIR "hello"
+eval create table t1 (a int) engine myisam
+partition by range (a)
+subpartition by hash (a)
+(partition p0 VALUES LESS THAN (1) $data_directory $inx_directory
+ (SUBPARTITION subpart00, SUBPARTITION subpart01));
+
+--replace_result $MYSQLTEST_VARDIR "hello"
+--exec ls $MYSQLTEST_VARDIR/master-data/test t1* || true
+--replace_result $MYSQLTEST_VARDIR "hello"
+--exec ls $MYSQLTEST_VARDIR/master-data/tmpdata t1* || true
+--replace_result $MYSQLTEST_VARDIR "hello"
+--exec ls $MYSQLTEST_VARDIR/master-data/tmpinx t1* || true
+--replace_result $MYSQLTEST_VARDIR "hello"
+
+eval ALTER TABLE t1 REORGANIZE PARTITION p0 INTO
+(partition p1 VALUES LESS THAN (1) $data_directory $inx_directory
+ (SUBPARTITION subpart10, SUBPARTITION subpart11),
+ partition p2 VALUES LESS THAN (2) $data_directory $inx_directory
+ (SUBPARTITION subpart20, SUBPARTITION subpart21));
+
+--replace_result $MYSQLTEST_VARDIR "hello"
+--exec ls $MYSQLTEST_VARDIR/master-data/test t1* || true
+--replace_result $MYSQLTEST_VARDIR "hello"
+--exec ls $MYSQLTEST_VARDIR/master-data/tmpdata t1* || true
+--replace_result $MYSQLTEST_VARDIR "hello"
+--exec ls $MYSQLTEST_VARDIR/master-data/tmpinx t1* || true
+
+drop table t1;
+--exec rmdir $MYSQLTEST_VARDIR/master-data/tmpdata || true
+--exec rmdir $MYSQLTEST_VARDIR/master-data/tmpinx || true
 --echo End of 5.1 tests
diff --git a/mysql-test/t/partition_innodb.test b/mysql-test/t/partition_innodb.test
index 51f5b0fec01..e40d9fffbf8 100644
--- a/mysql-test/t/partition_innodb.test
+++ b/mysql-test/t/partition_innodb.test
@@ -78,3 +78,16 @@ select * from t1 where id = 'a';
 select * from t1 where id = 'aa';
 select * from t1 where id = 'aaa';
 drop table t1;
+
+#
+# Bug #20852 Partitions: Crash if hash innodb, composite primary key
+#
+create table t1 (a int, b int, primary key (b,a))
+engine = innodb
+partition by hash (a);
+insert into t1 values (0, 0);
+insert into t1 values (1, 0);
+update t1 set b = b + 1 where a = 1;
+select * from t1;
+drop table t1;
+
diff --git a/mysql-test/t/partition_mgm.test b/mysql-test/t/partition_mgm.test
index cfb76192de4..39512de154f 100644
--- a/mysql-test/t/partition_mgm.test
+++ b/mysql-test/t/partition_mgm.test
@@ -12,7 +12,21 @@ ALTER TABLE t1 COALESCE PARTITION 1;
 SHOW CREATE TABLE t1;
 --replace_result $MYSQLTEST_VARDIR "hello"
 --exec ls $MYSQLTEST_VARDIR/master-data/test/t1*
+drop table t1;
+#
+# Bug 20767: REORGANIZE partition crashes
+#
+create table t1 (a int)
+partition by list (a)
+subpartition by hash (a)
+(partition p11 values in (1,2),
+ partition p12 values in (3,4));
 
+alter table t1 REORGANIZE partition p11, p12 INTO
+(partition p1 values in (1,2,3,4));
 
+alter table t1 REORGANIZE partition p1 INTO
+(partition p11 values in (1,2),
+ partition p12 values in (3,4));
 
-
+drop table t1;
diff --git a/mysql-test/t/partition_order.test b/mysql-test/t/partition_order.test
index 1e1b3339d64..ad956361d00 100644
--- a/mysql-test/t/partition_order.test
+++ b/mysql-test/t/partition_order.test
@@ -818,11 +818,27 @@ partitions 2
 # Insert a couple of tuples
 INSERT into t1 values (1, 1);
 INSERT into t1 values (5, NULL);
-INSERT into t1 values (2, 5);
+INSERT into t1 values (2, 4);
+INSERT into t1 values (3, 3);
+INSERT into t1 values (4, 5);
+INSERT into t1 values (7, 1);
+INSERT into t1 values (6, 6);
 INSERT into t1 values (30, 4);
 INSERT into t1 values (35, 2);
 INSERT into t1 values (40, NULL);
 
 select * from t1 force index (b) where b < 10 OR b IS NULL order by b;
+select * from t1 force index (b) where b < 10 ORDER BY b;
+select * from t1 force index (b) where b < 10 ORDER BY b DESC;
+drop table t1;
 
+create table t1 (a int not null, b int, c varchar(20), key (a,b,c))
+partition by range (b)
+(partition p0 values less than (5),
+ partition p1 values less than (10));
+INSERT into t1 values (1,1,'1'),(2,2,'2'),(1,3,'3'),(2,4,'4'),(1,5,'5');
+INSERT into t1 values (2,6,'6'),(1,7,'7'),(2,8,'8'),(1,9,'9');
+INSERT into t1 values (1, NULL, NULL), (2, NULL, '10');
+select * from t1 where a = 1 order by a desc, b desc;
+select * from t1 where a = 1 order by b desc;
 drop table t1;
diff --git a/mysql-test/t/partition_range.test b/mysql-test/t/partition_range.test
index 8e1e2e72e69..38142a9d485 100644
--- a/mysql-test/t/partition_range.test
+++ b/mysql-test/t/partition_range.test
@@ -555,3 +555,90 @@ reorganize partition p5 into
 
 drop table t1;
 
+#
+# New test cases for date based partitioning
+#
+CREATE TABLE t1 (a date)
+PARTITION BY RANGE (TO_DAYS(a))
+(PARTITION p3xx VALUES LESS THAN (TO_DAYS('2004-01-01')),
+ PARTITION p401 VALUES LESS THAN (TO_DAYS('2004-02-01')),
+ PARTITION p402 VALUES LESS THAN (TO_DAYS('2004-03-01')),
+ PARTITION p403 VALUES LESS THAN (TO_DAYS('2004-04-01')),
+ PARTITION p404 VALUES LESS THAN (TO_DAYS('2004-05-01')),
+ PARTITION p405 VALUES LESS THAN (TO_DAYS('2004-06-01')),
+ PARTITION p406 VALUES LESS THAN (TO_DAYS('2004-07-01')),
+ PARTITION p407 VALUES LESS THAN (TO_DAYS('2004-08-01')),
+ PARTITION p408 VALUES LESS THAN (TO_DAYS('2004-09-01')),
+ PARTITION p409 VALUES LESS THAN (TO_DAYS('2004-10-01')),
+ PARTITION p410 VALUES LESS THAN (TO_DAYS('2004-11-01')),
+ PARTITION p411 VALUES LESS THAN (TO_DAYS('2004-12-01')),
+ PARTITION p412 VALUES LESS THAN (TO_DAYS('2005-01-01')),
+ PARTITION p501 VALUES LESS THAN (TO_DAYS('2005-02-01')),
+ PARTITION p502 VALUES LESS THAN (TO_DAYS('2005-03-01')),
+ PARTITION p503 VALUES LESS THAN (TO_DAYS('2005-04-01')),
+ PARTITION p504 VALUES LESS THAN (TO_DAYS('2005-05-01')),
+ PARTITION p505 VALUES LESS THAN (TO_DAYS('2005-06-01')),
+ PARTITION p506 VALUES LESS THAN (TO_DAYS('2005-07-01')),
+ PARTITION p507 VALUES LESS THAN (TO_DAYS('2005-08-01')),
+ PARTITION p508 VALUES LESS THAN (TO_DAYS('2005-09-01')),
+ PARTITION p509 VALUES LESS THAN (TO_DAYS('2005-10-01')),
+ PARTITION p510 VALUES LESS THAN (TO_DAYS('2005-11-01')),
+ PARTITION p511 VALUES LESS THAN (TO_DAYS('2005-12-01')),
+ PARTITION p512 VALUES LESS THAN (TO_DAYS('2006-01-01')),
+ PARTITION p601 VALUES LESS THAN (TO_DAYS('2006-02-01')),
+ PARTITION p602 VALUES LESS THAN (TO_DAYS('2006-03-01')),
+ PARTITION p603 VALUES LESS THAN (TO_DAYS('2006-04-01')),
+ PARTITION p604 VALUES LESS THAN (TO_DAYS('2006-05-01')),
+ PARTITION p605 VALUES LESS THAN (TO_DAYS('2006-06-01')),
+ PARTITION p606 VALUES LESS THAN (TO_DAYS('2006-07-01')),
+ PARTITION p607 VALUES LESS THAN (TO_DAYS('2006-08-01')));
+
+INSERT INTO t1 VALUES ('2003-01-13'),('2003-06-20'),('2003-08-30');
+INSERT INTO t1 VALUES ('2003-04-13'),('2003-07-20'),('2003-10-30');
+INSERT INTO t1 VALUES ('2003-05-13'),('2003-11-20'),('2003-12-30');
+
+INSERT INTO t1 VALUES ('2004-01-13'),('2004-01-20'),('2004-01-30');
+INSERT INTO t1 VALUES ('2004-02-13'),('2004-02-20'),('2004-02-28');
+INSERT INTO t1 VALUES ('2004-03-13'),('2004-03-20'),('2004-03-30');
+INSERT INTO t1 VALUES ('2004-04-13'),('2004-04-20'),('2004-04-30');
+INSERT INTO t1 VALUES ('2004-05-13'),('2004-05-20'),('2004-05-30');
+INSERT INTO t1 VALUES ('2004-06-13'),('2004-06-20'),('2004-06-30');
+INSERT INTO t1 VALUES ('2004-07-13'),('2004-07-20'),('2004-07-30');
+INSERT INTO t1 VALUES ('2004-08-13'),('2004-08-20'),('2004-08-30');
+INSERT INTO t1 VALUES ('2004-09-13'),('2004-09-20'),('2004-09-30');
+INSERT INTO t1 VALUES ('2004-10-13'),('2004-10-20'),('2004-10-30');
+INSERT INTO t1 VALUES ('2004-11-13'),('2004-11-20'),('2004-11-30');
+INSERT INTO t1 VALUES ('2004-12-13'),('2004-12-20'),('2004-12-30');
+
+INSERT INTO t1 VALUES ('2005-01-13'),('2005-01-20'),('2005-01-30');
+INSERT INTO t1 VALUES ('2005-02-13'),('2005-02-20'),('2005-02-28');
+INSERT INTO t1 VALUES ('2005-03-13'),('2005-03-20'),('2005-03-30');
+INSERT INTO t1 VALUES ('2005-04-13'),('2005-04-20'),('2005-04-30');
+INSERT INTO t1 VALUES ('2005-05-13'),('2005-05-20'),('2005-05-30');
+INSERT INTO t1 VALUES ('2005-06-13'),('2005-06-20'),('2005-06-30');
+INSERT INTO t1 VALUES ('2005-07-13'),('2005-07-20'),('2005-07-30');
+INSERT INTO t1 VALUES ('2005-08-13'),('2005-08-20'),('2005-08-30');
+INSERT INTO t1 VALUES ('2005-09-13'),('2005-09-20'),('2005-09-30');
+INSERT INTO t1 VALUES ('2005-10-13'),('2005-10-20'),('2005-10-30');
+INSERT INTO t1 VALUES ('2005-11-13'),('2005-11-20'),('2005-11-30');
+INSERT INTO t1 VALUES ('2005-12-13'),('2005-12-20'),('2005-12-30');
+
+INSERT INTO t1 VALUES ('2006-01-13'),('2006-01-20'),('2006-01-30');
+INSERT INTO t1 VALUES ('2006-02-13'),('2006-02-20'),('2006-02-28');
+INSERT INTO t1 VALUES ('2006-03-13'),('2006-03-20'),('2006-03-30');
+INSERT INTO t1 VALUES ('2006-04-13'),('2006-04-20'),('2006-04-30');
+INSERT INTO t1 VALUES ('2006-05-13'),('2006-05-20'),('2006-05-30');
+INSERT INTO t1 VALUES ('2006-06-13'),('2006-06-20'),('2006-06-30');
+INSERT INTO t1 VALUES ('2006-07-13'),('2006-07-20'),('2006-07-30');
+
+SELECT * FROM t1
+WHERE a >= '2004-07-01' AND a <= '2004-09-30';
+EXPLAIN PARTITIONS SELECT * FROM t1
+WHERE a >= '2004-07-01' AND a <= '2004-09-30';
+SELECT * from t1
+WHERE (a >= '2004-07-01' AND a <= '2004-09-30') OR
+      (a >= '2005-07-01' AND a <= '2005-09-30');
+EXPLAIN PARTITIONS SELECT * from t1
+WHERE (a >= '2004-07-01' AND a <= '2004-09-30') OR
+      (a >= '2005-07-01' AND a <= '2005-09-30');
+DROP TABLE t1;
diff --git a/sql/ha_myisam.cc b/sql/ha_myisam.cc
index 2d097c34f97..2acc1f4ed7d 100644
--- a/sql/ha_myisam.cc
+++ b/sql/ha_myisam.cc
@@ -1202,12 +1202,13 @@ int ha_myisam::index_read_idx(byte * buf, uint index, const byte * key,
 
 int ha_myisam::index_read_last(byte * buf, const byte * key, uint key_len)
 {
+  DBUG_ENTER("ha_myisam::index_read_last");
   DBUG_ASSERT(inited==INDEX);
   statistic_increment(table->in_use->status_var.ha_read_key_count,
 		      &LOCK_status);
   int error=mi_rkey(file,buf,active_index, key, key_len, HA_READ_PREFIX_LAST);
   table->status=error ? STATUS_NOT_FOUND: 0;
-  return error;
+  DBUG_RETURN(error);
 }
 
 int ha_myisam::index_next(byte * buf)
diff --git a/sql/ha_partition.cc b/sql/ha_partition.cc
index 5b15c4b32bd..615c4bfb1bf 100644
--- a/sql/ha_partition.cc
+++ b/sql/ha_partition.cc
@@ -204,6 +204,7 @@ void ha_partition::init_handler_variables()
   m_name_buffer_ptr= NULL;
   m_engine_array= NULL;
   m_file= NULL;
+  m_file_tot_parts= 0;
   m_reorged_file= NULL;
   m_new_file= NULL;
   m_reorged_parts= 0;
@@ -1125,13 +1126,15 @@ int ha_partition::handle_opt_partitions(THD *thd, HA_CHECK_OPT *check_opt,
 
 int ha_partition::prepare_new_partition(TABLE *table,
                                         HA_CREATE_INFO *create_info,
-                                        handler *file, const char *part_name)
+                                        handler *file, const char *part_name,
+                                        partition_element *p_elem)
 {
   int error;
   bool create_flag= FALSE;
   bool open_flag= FALSE;
   DBUG_ENTER("prepare_new_partition");
 
+  set_up_table_before_create(table, part_name, create_info, 0, p_elem);
   if ((error= file->create(part_name, table, create_info)))
     goto error;
   create_flag= TRUE;
@@ -1231,7 +1234,7 @@ int ha_partition::change_partitions(HA_CREATE_INFO *create_info,
   uint no_parts= m_part_info->partitions.elements;
   uint no_subparts= m_part_info->no_subparts;
   uint i= 0;
-  uint no_remain_partitions, part_count;
+  uint no_remain_partitions, part_count, orig_count;
   handler **new_file_array;
   int error= 1;
   bool first;
@@ -1266,10 +1269,10 @@ int ha_partition::change_partitions(HA_CREATE_INFO *create_info,
     } while (++i < no_parts);
   }
   if (m_reorged_parts &&
-      !(m_reorged_file= (handler**)sql_calloc(sizeof(partition_element*)*
+      !(m_reorged_file= (handler**)sql_calloc(sizeof(handler*)*
                                               (m_reorged_parts + 1))))
   {
-    mem_alloc_error(sizeof(partition_element*)*(m_reorged_parts+1));
+    mem_alloc_error(sizeof(handler*)*(m_reorged_parts+1));
     DBUG_RETURN(ER_OUTOFMEMORY);
   }
 
@@ -1340,6 +1343,7 @@ int ha_partition::change_partitions(HA_CREATE_INFO *create_info,
           ones used to be.
         */
         first= FALSE;
+        DBUG_ASSERT(i + m_reorged_parts <= m_file_tot_parts);
         memcpy((void*)m_reorged_file, &m_file[i*no_subparts],
                sizeof(handler*)*m_reorged_parts*no_subparts);
       }
@@ -1353,15 +1357,18 @@ int ha_partition::change_partitions(HA_CREATE_INFO *create_info,
   */
   i= 0;
   part_count= 0;
+  orig_count= 0;
   part_it.rewind();
   do
   {
     partition_element *part_elem= part_it++;
     if (part_elem->part_state == PART_NORMAL)
     {
-      memcpy((void*)&new_file_array[part_count], (void*)&m_file[i],
+      DBUG_ASSERT(orig_count + no_subparts <= m_file_tot_parts);
+      memcpy((void*)&new_file_array[part_count], (void*)&m_file[orig_count],
              sizeof(handler*)*no_subparts);
       part_count+= no_subparts;
+      orig_count+= no_subparts;
     }
     else if (part_elem->part_state == PART_CHANGED ||
              part_elem->part_state == PART_TO_BE_ADDED)
@@ -1420,7 +1427,8 @@ int ha_partition::change_partitions(HA_CREATE_INFO *create_info,
           DBUG_PRINT("info", ("Add subpartition %s", part_name_buff));
           if ((error= prepare_new_partition(table, create_info,
                                             new_file_array[part],
-                                            (const char *)part_name_buff)))
+                                            (const char *)part_name_buff,
+                                            sub_elem)))
           {
             cleanup_new_partition(part_count);
             DBUG_RETURN(error);
@@ -1436,7 +1444,8 @@ int ha_partition::change_partitions(HA_CREATE_INFO *create_info,
         DBUG_PRINT("info", ("Add partition %s", part_name_buff));
         if ((error= prepare_new_partition(table, create_info,
                                           new_file_array[i],
-                                          (const char *)part_name_buff)))
+                                          (const char *)part_name_buff,
+                                          part_elem)))
         {
           cleanup_new_partition(part_count);
           DBUG_RETURN(error);
@@ -1648,7 +1657,7 @@ uint ha_partition::del_ren_cre_table(const char *from,
       error= (*file)->delete_table((const char*) from_buff);
     else
     {
-      set_up_table_before_create(table_arg, from_buff, create_info, i);
+      set_up_table_before_create(table_arg, from_buff, create_info, i, NULL);
       error= (*file)->create(from_buff, table_arg, create_info);
     }
     name_buffer_ptr= strend(name_buffer_ptr) + 1;
@@ -1724,12 +1733,15 @@ partition_element *ha_partition::find_partition_element(uint part_id)
 void ha_partition::set_up_table_before_create(TABLE *table,
                    const char *partition_name_with_path, 
                    HA_CREATE_INFO *info,
-                   uint part_id)
+                   uint part_id,
+                   partition_element *part_elem)
 {
-  partition_element *part_elem= find_partition_element(part_id);
-
   if (!part_elem)
-    return;                                     // Fatal error
+  {
+    part_elem= find_partition_element(part_id);
+    if (!part_elem)
+      return;                                   // Fatal error
+  }
   table->s->max_rows= part_elem->part_max_rows;
   table->s->min_rows= part_elem->part_min_rows;
   const char *partition_name= strrchr(partition_name_with_path, FN_LIBCHAR);
@@ -1959,6 +1971,7 @@ bool ha_partition::create_handlers(MEM_ROOT *mem_root)
 
   if (!(m_file= (handler **) alloc_root(mem_root, alloc_len)))
     DBUG_RETURN(TRUE);
+  m_file_tot_parts= m_tot_parts;
   bzero((char*) m_file, alloc_len);
   for (i= 0; i < m_tot_parts; i++)
   {
@@ -2008,6 +2021,7 @@ bool ha_partition::new_handlers_from_part_info(MEM_ROOT *mem_root)
     mem_alloc_error(alloc_len);
     goto error_end;
   }
+  m_file_tot_parts= m_tot_parts;
   bzero((char*) m_file, alloc_len);
   DBUG_ASSERT(m_part_info->no_parts > 0);
 
@@ -2229,7 +2243,8 @@ int ha_partition::open(const char *name, int mode, uint test_if_locked)
   m_table_flags&= ~(HA_CAN_GEOMETRY | HA_CAN_FULLTEXT | HA_DUPLICATE_POS |
                     HA_CAN_SQL_HANDLER | HA_CAN_INSERT_DELAYED);
   m_table_flags|= HA_FILE_BASED | HA_REC_NOT_IN_SEQ;
-
+  key_used_on_scan= m_file[0]->key_used_on_scan;
+  implicit_emptied= m_file[0]->implicit_emptied;
   /*
     Add 2 bytes for partition id in position ref length.
     ref_length=max_in_all_partitions(ref_length) + PARTITION_BYTES_IN_POS
@@ -3265,6 +3280,7 @@ int ha_partition::index_read(byte * buf, const byte * key,
   DBUG_ENTER("ha_partition::index_read");
 
   end_range= 0;
+  m_index_scan_type= partition_index_read;
   DBUG_RETURN(common_index_read(buf, key, key_len, find_flag));
 }
 
@@ -3282,18 +3298,24 @@ int ha_partition::common_index_read(byte *buf, const byte *key, uint key_len,
 				    enum ha_rkey_function find_flag)
 {
   int error;
+  bool reverse_order= FALSE;
   DBUG_ENTER("ha_partition::common_index_read");
 
   memcpy((void*)m_start_key.key, key, key_len);
   m_start_key.length= key_len;
   m_start_key.flag= find_flag;
-  m_index_scan_type= partition_index_read;
 
   if ((error= partition_scan_set_up(buf, TRUE)))
   {
     DBUG_RETURN(error);
   }
-
+  if (find_flag == HA_READ_PREFIX_LAST ||
+      find_flag == HA_READ_PREFIX_LAST_OR_PREV ||
+      find_flag == HA_READ_BEFORE_KEY)
+  {
+    reverse_order= TRUE;
+    m_ordered_scan_ongoing= TRUE;
+  }
   if (!m_ordered_scan_ongoing ||
       (find_flag == HA_READ_KEY_EXACT &&
        (key_len >= m_curr_key_info->key_length ||
@@ -3319,7 +3341,7 @@ int ha_partition::common_index_read(byte *buf, const byte *key, uint key_len,
       In all other cases we will use the ordered index scan. This will use
       the partition set created by the get_partition_set method.
     */
-    error= handle_ordered_index_scan(buf);
+    error= handle_ordered_index_scan(buf, reverse_order);
   }
   DBUG_RETURN(error);
 }
@@ -3403,7 +3425,7 @@ int ha_partition::common_first_last(byte *buf)
   if (!m_ordered_scan_ongoing &&
       m_index_scan_type != partition_index_last)
     return handle_unordered_scan_next_partition(buf);
-  return handle_ordered_index_scan(buf);
+  return handle_ordered_index_scan(buf, FALSE);
 }
 
 
@@ -3457,7 +3479,9 @@ int ha_partition::index_read_last(byte *buf, const byte *key, uint keylen)
   DBUG_ENTER("ha_partition::index_read_last");
 
   m_ordered= TRUE;				// Safety measure
-  DBUG_RETURN(index_read(buf, key, keylen, HA_READ_PREFIX_LAST));
+  end_range= 0;
+  m_index_scan_type= partition_index_read_last;
+  DBUG_RETURN(common_index_read(buf, key, keylen, HA_READ_PREFIX_LAST));
 }
 
 
@@ -3597,6 +3621,7 @@ int ha_partition::read_range_first(const key_range *start_key,
   }
   else
   {
+    m_index_scan_type= partition_index_read;
     error= common_index_read(m_rec0,
 			     start_key->key,
 			     start_key->length, start_key->flag);
@@ -3855,12 +3880,11 @@ int ha_partition::handle_unordered_scan_next_partition(byte * buf)
     entries.
 */
 
-int ha_partition::handle_ordered_index_scan(byte *buf)
+int ha_partition::handle_ordered_index_scan(byte *buf, bool reverse_order)
 {
   uint i;
   uint j= 0;
   bool found= FALSE;
-  bool reverse_order= FALSE;
   DBUG_ENTER("ha_partition::handle_ordered_index_scan");
 
   m_top_entry= NO_CURRENT_PART_ID;
@@ -3881,7 +3905,6 @@ int ha_partition::handle_ordered_index_scan(byte *buf)
                               m_start_key.key,
                               m_start_key.length,
                               m_start_key.flag);
-      reverse_order= FALSE;
       break;
     case partition_index_first:
       error= file->index_first(rec_buf_ptr);
@@ -3891,6 +3914,12 @@ int ha_partition::handle_ordered_index_scan(byte *buf)
       error= file->index_last(rec_buf_ptr);
       reverse_order= TRUE;
       break;
+    case partition_index_read_last:
+      error= file->index_read_last(rec_buf_ptr,
+                                   m_start_key.key,
+                                   m_start_key.length);
+      reverse_order= TRUE;
+      break;
     default:
       DBUG_ASSERT(FALSE);
       DBUG_RETURN(HA_ERR_END_OF_FILE);
diff --git a/sql/ha_partition.h b/sql/ha_partition.h
index f9fe5f2501f..c62f21cfaa1 100644
--- a/sql/ha_partition.h
+++ b/sql/ha_partition.h
@@ -46,7 +46,8 @@ private:
     partition_index_read= 0,
     partition_index_first= 1,
     partition_index_last= 2,
-    partition_no_index_scan= 3
+    partition_index_read_last= 3,
+    partition_no_index_scan= 4
   };
   /* Data for the partition handler */
   int  m_mode;                          // Open mode
@@ -55,6 +56,7 @@ private:
   char *m_name_buffer_ptr;		// Pointer to first partition name
   handlerton **m_engine_array;          // Array of types of the handlers
   handler **m_file;                     // Array of references to handler inst.
+  uint m_file_tot_parts;                // Debug
   handler **m_new_file;                 // Array of references to new handlers
   handler **m_reorged_file;             // Reorganised partitions
   handler **m_added_file;               // Added parts kept for errors
@@ -202,7 +204,8 @@ private:
   int copy_partitions(ulonglong *copied, ulonglong *deleted);
   void cleanup_new_partition(uint part_count);
   int prepare_new_partition(TABLE *table, HA_CREATE_INFO *create_info,
-                            handler *file, const char *part_name);
+                            handler *file, const char *part_name,
+                            partition_element *p_elem);
   /*
     delete_table, rename_table and create uses very similar logic which
     is packed into this routine.
@@ -222,7 +225,8 @@ private:
   void set_up_table_before_create(TABLE *table_arg,
                                   const char *partition_name_with_path,
                                   HA_CREATE_INFO *info,
-                                  uint part_id);
+                                  uint part_id,
+                                  partition_element *p_elem);
   partition_element *find_partition_element(uint part_id);
 
 public:
@@ -429,7 +433,7 @@ private:
       return (queue_buf(part_id) +
               PARTITION_BYTES_IN_POS);
     }
-  int handle_ordered_index_scan(byte * buf);
+  int handle_ordered_index_scan(byte * buf, bool reverse_order);
   int handle_ordered_next(byte * buf, bool next_same);
   int handle_ordered_prev(byte * buf);
   void return_top_record(byte * buf);
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index 8ce5bbc87aa..e345b61e41e 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -3734,14 +3734,15 @@ sub_part_definition:
         {
           LEX *lex= Lex;
           partition_info *part_info= lex->part_info;
-          partition_element *p_elem= new partition_element();
-          if (!p_elem ||
-           part_info->current_partition->subpartitions.push_back(p_elem))
+          partition_element *curr_part= part_info->current_partition;
+          partition_element *sub_p_elem= new partition_element(curr_part);
+          if (!sub_p_elem ||
+           curr_part->subpartitions.push_back(sub_p_elem))
           {
             mem_alloc_error(sizeof(partition_element));
             YYABORT;
           }
-          part_info->curr_part_elem= p_elem;
+          part_info->curr_part_elem= sub_p_elem;
           part_info->use_default_subpartitions= FALSE;
           part_info->use_default_no_subpartitions= FALSE;
           part_info->count_curr_subparts++;