From 41404ec52ed8a3132df2402ce06e0a017a48bf99 Mon Sep 17 00:00:00 2001
From: "sergefp@mysql.com" <>
Date: Fri, 14 Sep 2007 14:18:42 +0400
Subject: BUG#27927:Partition pruning not optimal with TO_DAYS and YEAR
 functions - Introduced val_int_endpoint() function which converts between
 func   argument intervals and func value intervals for monotonic functions. -
 Made partition interval analyzer use part_expr->val_int_endpoint()   to check
 if the edge values should be included.

---
 sql/item_timefunc.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sql/item_timefunc.h')

diff --git a/sql/item_timefunc.h b/sql/item_timefunc.h
index 32f5bcf8e52..36556269d07 100644
--- a/sql/item_timefunc.h
+++ b/sql/item_timefunc.h
@@ -68,6 +68,7 @@ public:
     maybe_null=1; 
   }
   enum_monotonicity_info get_monotonicity_info() const;
+  longlong val_int_endpoint(bool left_endp, bool *incl_endp);
   bool check_partition_func_processor(uchar *int_arg) {return FALSE;}
 };
 
@@ -248,6 +249,7 @@ public:
   longlong val_int();
   const char *func_name() const { return "year"; }
   enum_monotonicity_info get_monotonicity_info() const;
+  longlong val_int_endpoint(bool left_endp, bool *incl_endp);
   void fix_length_and_dec()
   { 
     decimals=0;
-- 
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