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Comment improvements.

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This commit is contained in:
Bruce Momjian
2001-02-21 19:07:04 +00:00
parent be92ad49e0
commit 15903a1ed4
4 changed files with 20 additions and 14 deletions
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8
src/include/access/nbtree.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nbtree.h,v 1.51 2001/02/07 23:34:18 vadim Exp $
* $Id: nbtree.h,v 1.52 2001/02/21 19:07:04 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -37,15 +37,17 @@ typedef struct BTPageOpaqueData
BlockNumber btpo_parent;
uint16 btpo_flags;
} BTPageOpaqueData;
typedef BTPageOpaqueData *BTPageOpaque;
/* Bits defined in btpo_flags */
#define BTP_LEAF (1 << 0) /* It's a leaf page */
#define BTP_ROOT (1 << 1) /* It's the root page (has no parent) */
#define BTP_FREE (1 << 2) /* not currently used... */
#define BTP_META (1 << 3) /* Set in the meta-page only */
#define BTP_REORDER (1 << 4) /* items must be re-ordered */
} BTPageOpaqueData;
typedef BTPageOpaqueData *BTPageOpaque;
#define BTREE_METAPAGE 0 /* first page is meta */
#define BTREE_MAGIC 0x053162