From 7dd4eb71fe7576e428fe1ecaaad214d3a39ff4dc Mon Sep 17 00:00:00 2001
From: "monty@tik.mysql.fi" <>
Date: Sat, 12 Jan 2002 15:42:54 +0200
Subject: Added support of null keys in HEAP tables Added ORDER BY optimization

---
 include/heap.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'include/heap.h')

diff --git a/include/heap.h b/include/heap.h
index 9efb873ec93..02b04e2b3ec 100644
--- a/include/heap.h
+++ b/include/heap.h
@@ -78,11 +78,13 @@ typedef struct st_hp_keyseg		/* Key-portion */
   uint start;				/* Start of key in record (from 0) */
   uint length;				/* Keylength */
   uint type;
+  uint null_bit;			/* bit set in row+null_pos */
+  uint null_pos;
 } HP_KEYSEG;
 
 typedef struct st_hp_keydef		/* Key definition with open */
 {
-  uint flag;				/* NOSAME */
+  uint flag;				/* HA_NOSAME | HA_NULL_PART_KEY */
   uint keysegs;				/* Number of key-segment */
   uint length;				/* Length of key (automatic) */
   HP_KEYSEG *seg;
-- 
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