merge

sql/ha_partition.h

@@ -36,8 +36,7 @@ enum partition_keywords
                                         HA_CAN_FULLTEXT | \
                                         HA_DUPLICATE_POS | \
                                         HA_CAN_SQL_HANDLER | \
-                                        HA_CAN_INSERT_DELAYED | \
-                                        HA_PRIMARY_KEY_REQUIRED_FOR_POSITION)
+                                        HA_CAN_INSERT_DELAYED)
 class ha_partition :public handler
 {
 private:
@@ -431,6 +430,15 @@ public:
   virtual int index_init(uint idx, bool sorted);
   virtual int index_end();
 
+  /**
+    @breif
+    Positions an index cursor to the index specified in the hanlde. Fetches the
+    row if available. If the key value is null, begin at first key of the
+    index.
+  */
+  virtual int index_read_idx_map(uchar *buf, uint index, const uchar *key,
+                                 key_part_map keypart_map,
+                                 enum ha_rkey_function find_flag);
   /*
     These methods are used to jump to next or previous entry in the index
     scan. There are also methods to jump to first and last entry.
@@ -749,9 +757,6 @@ public:
 
     HA_PRIMARY_KEY_REQUIRED_FOR_POSITION:
     Does the storage engine need a PK for position?
-    Used with hidden primary key in InnoDB.
-    Hidden primary keys cannot be supported by partitioning, since the
-    partitioning expressions columns must be a part of the primary key.
     (InnoDB)
 
     HA_FILE_BASED is always set for partition handler since we use a