MDEV-11084 Select statement with partition selection against MyISAM table opens all partitions.

        Now we don't open partitions if it was explicitly cpecified.
        ha_partition::m_opened_partition bitmap added to track
        partitions that were actually opened.

1 files changed, 3 insertions, 2 deletions

diff --git a/sql/partition_info.h b/sql/partition_info.h
index 67a62874fcd..4a37008811a 100644
--- a/sql/partition_info.h
+++ b/sql/partition_info.h
@@ -325,7 +325,8 @@ public:
 
   partition_info *get_clone(THD *thd);
   bool set_named_partition_bitmap(const char *part_name, uint length);
-  bool set_partition_bitmaps(TABLE_LIST *table_list);
+  bool set_partition_bitmaps(List<String> *partition_names);
+  bool set_partition_bitmaps_from_table(TABLE_LIST *table_list);
   /* Answers the question if subpartitioning is used for a certain table */
   bool is_sub_partitioned()
   {
@@ -386,7 +387,7 @@ private:
   char *create_default_subpartition_name(THD *thd, uint subpart_no,
                                          const char *part_name);
   // FIXME: prune_partition_bitmaps() is duplicate of set_read_partitions()
-  bool prune_partition_bitmaps(TABLE_LIST *table_list);
+  bool prune_partition_bitmaps(List<String> *partition_names);
   bool add_named_partition(const char *part_name, uint length);
 public:
   bool set_read_partitions(List<char> *partition_names);