WL#2985 "Partition Pruning"

sql/ha_ndbcluster.cc:
  WL#2985 "Partition Pruning": added part_info->used_partitions initialization
sql/ha_partition.cc:
  WL#2985 "Partition Pruning": added part_info->used_partitions initialization
sql/handler.h:
  WL#2985 "Partition Pruning": 
  Added function prototypes
  in partition_info:
   - Added 'used_partitions' bitmap
   - Added comments
sql/item.h:
  WL#2985 "Partition Pruning": 
  - added enum monotonicity_info
  - added virtual Item::get_monotonicity_info()
sql/item_timefunc.cc:
  WL#2985 "Partition Pruning": 
  - added Item_func_to_days::get_monotonicity_info()
  - added Item_func_year::get_monotonicity_info()
sql/item_timefunc.h:
  WL#2985 "Partition Pruning": 
  - added Item_func_to_days::get_monotonicity_info()
  - added Item_func_year::get_monotonicity_info()
sql/opt_range.cc:
  WL#2985 "Partition Pruning":
  - Split out PARAM structure into PARAM and RANGE_OPT_PARAM part.
  - Added partition pruning module code.
sql/opt_range.h:
  WL#2985 "Partition Pruning": 
  Added prune_partitions() function declaration. This is the entry point for partition pruning 
  module
sql/sql_class.cc:
  WL#2985 "Partition Pruning": added support for "EXPLAIN PARTITIONS SELECT ..."
sql/sql_lex.h:
  WL#2985 "Partition Pruning": added support for "EXPLAIN PARTITIONS SELECT ..."
sql/sql_partition.cc:
  WL#2985 "Partition Pruning": 
   - Added get_list_array_idx_for_endpoint and get_range_... functions to support partition 
     pruning on "partition_field < const"-like intervals.
   - Added partition_info::used_partitions bitmap.
   - Added make_used_partitions_str function
   - Fixed BUG#15819
sql/sql_select.cc:
  WL#2985 "Partition Pruning": 
  - Added prune_partitions() invocation right before the range analysis
  - Added code to handle return value from prune_partitions()
  - Added support for "EXPLAIN PARTITIONS SELECT ..."
sql/sql_yacc.yy:
  #2985 "Partition Pruning": added support for "EXPLAIN PARTITIONS SELECT ..."

1 files changed, 2 insertions, 0 deletions

diff --git a/sql/item_timefunc.h b/sql/item_timefunc.h
index 46079ac0342..9a2cb7a4c9e 100644
--- a/sql/item_timefunc.h
+++ b/sql/item_timefunc.h
@@ -65,6 +65,7 @@ public:
     max_length=6*MY_CHARSET_BIN_MB_MAXLEN;
     maybe_null=1; 
   }
+  enum_monotonicity_info get_monotonicity_info() const;
 };
 
 
@@ -234,6 +235,7 @@ public:
   Item_func_year(Item *a) :Item_int_func(a) {}
   longlong val_int();
   const char *func_name() const { return "year"; }
+  enum_monotonicity_info get_monotonicity_info() const;
   void fix_length_and_dec()
   { 
     decimals=0;