MDEV-5102 : MySQL Bug 69851

- Backport MySQL's fix: do set ha_partition::m_pkey_is_clustered for ha_partition 
  objects created with handler->clone() call.
- Also, include a testcase.

mysql-test/r/partition_innodb.result

@@ -594,4 +594,49 @@ a	b	c
 4	2	1
 5	1	1
 DROP TABLE t1;
+#
+# MDEV-5102 : MySQL Bug 69851
+#
+CREATE TABLE t1 (
+`col1` bigint(20) unsigned NOT NULL ,
+`col2` bigint(20) unsigned NOT NULL ,
+`col3` datetime NOT NULL ,
+PRIMARY KEY (`col3`),
+KEY (`col1`),
+KEY (`col2`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+PARTITION BY RANGE (TO_DAYS(col3))
+(
+PARTITION p_20130310 VALUES LESS THAN (735303) ENGINE = InnoDB,
+PARTITION p_20130311 VALUES LESS THAN (735304) ENGINE = InnoDB,
+PARTITION p_20130312 VALUES LESS THAN (735305) ENGINE = InnoDB
+);
+INSERT INTO `t1` VALUES (2,96,'2013-03-08 16:28:05');
+INSERT INTO `t1` VALUES (1,2,'2013-03-08 16:47:39');
+INSERT INTO `t1` VALUES (1,2,'2013-03-08 16:50:27');
+INSERT INTO `t1` VALUES (1,2,'2013-03-11 16:33:04');
+INSERT INTO `t1` VALUES (1,2,'2013-03-11 16:33:24');
+INSERT INTO `t1` VALUES (2,2,'2013-03-12 10:11:48');
+SELECT * FROM t1 WHERE col1 = 1 AND col2 = 2
+AND col3 BETWEEN '2013-03-08 00:00:00' AND '2013-03-12 12:00:00'
+GROUP BY 1, 2, 3;
+col1	col2	col3
+1	2	2013-03-08 16:47:39
+1	2	2013-03-08 16:50:27
+1	2	2013-03-11 16:33:04
+1	2	2013-03-11 16:33:24
+EXPLAIN SELECT * FROM t1 WHERE col1 = 1 AND col2 = 2
+AND col3 BETWEEN '2013-03-08 00:00:00' AND '2013-03-12 12:00:00'
+GROUP BY 1, 2, 3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index_merge	PRIMARY,col1,col2	col1,col2	8,8	NULL	#	Using intersect(col1,col2); Using where; Using index; Using filesort
+SELECT * FROM t1 USE INDEX () WHERE col1 = 1 AND col2 = 2
+AND col3 BETWEEN '2013-03-08 00:00:00' AND '2013-03-12 12:00:00'
+GROUP BY 1, 2, 3;
+col1	col2	col3
+1	2	2013-03-08 16:47:39
+1	2	2013-03-08 16:50:27
+1	2	2013-03-11 16:33:04
+1	2	2013-03-11 16:33:24
+DROP TABLE t1;
 set global default_storage_engine=default;

mysql-test/t/partition_innodb.test

@@ -678,4 +678,43 @@ UPDATE t1 SET b = 0, c=1 WHERE a <=>0;
 SELECT * FROM t1;
 DROP TABLE t1;
 
+--echo #
+--echo # MDEV-5102 : MySQL Bug 69851
+--echo #
+CREATE TABLE t1 (
+  `col1` bigint(20) unsigned NOT NULL ,
+  `col2` bigint(20) unsigned NOT NULL ,
+  `col3` datetime NOT NULL ,
+  PRIMARY KEY (`col3`),
+  KEY (`col1`),
+  KEY (`col2`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1
+ PARTITION BY RANGE (TO_DAYS(col3))
+(
+ PARTITION p_20130310 VALUES LESS THAN (735303) ENGINE = InnoDB,
+ PARTITION p_20130311 VALUES LESS THAN (735304) ENGINE = InnoDB,
+ PARTITION p_20130312 VALUES LESS THAN (735305) ENGINE = InnoDB
+);
+INSERT INTO `t1` VALUES (2,96,'2013-03-08 16:28:05');
+INSERT INTO `t1` VALUES (1,2,'2013-03-08 16:47:39');
+INSERT INTO `t1` VALUES (1,2,'2013-03-08 16:50:27');
+INSERT INTO `t1` VALUES (1,2,'2013-03-11 16:33:04');
+INSERT INTO `t1` VALUES (1,2,'2013-03-11 16:33:24');
+INSERT INTO `t1` VALUES (2,2,'2013-03-12 10:11:48');
+
+SELECT * FROM t1 WHERE col1 = 1 AND col2 = 2
+    AND col3 BETWEEN '2013-03-08 00:00:00' AND '2013-03-12 12:00:00'
+GROUP BY 1, 2, 3;
+--replace_column 9 #
+EXPLAIN SELECT * FROM t1 WHERE col1 = 1 AND col2 = 2
+    AND col3 BETWEEN '2013-03-08 00:00:00' AND '2013-03-12 12:00:00'
+GROUP BY 1, 2, 3;
+
+SELECT * FROM t1 USE INDEX () WHERE col1 = 1 AND col2 = 2
+    AND col3 BETWEEN '2013-03-08 00:00:00' AND '2013-03-12 12:00:00'
+GROUP BY 1, 2, 3;
+
+DROP TABLE t1;
+
+
 set global default_storage_engine=default;

sql/ha_partition.cc

@@ -226,6 +226,7 @@ ha_partition::ha_partition(handlerton *hton, TABLE_SHARE *share,
   m_is_sub_partitioned= m_part_info->is_sub_partitioned();
   m_is_clone_of= clone_arg;
   m_clone_mem_root= clone_mem_root_arg;
+  m_pkey_is_clustered= clone_arg->primary_key_is_clustered(); 
   DBUG_VOID_RETURN;
 }