From: Bruce Momjian <bruce@momjian.us>
Date: Mon, 9 Jul 2001 18:35:52 +0000 (+0000)
Subject: Document meaning of lossy column.
X-Git-Tag: REL9_0_0~20185
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=a48c3a3447efda3e829c39f31547ed93fc32f78f;p=pg-rex%2Fsyncrep.git

Document meaning of lossy column.
---

diff --git a/src/include/catalog/pg_index.h b/src/include/catalog/pg_index.h
index c7af574c7c..a490c8b582 100644
--- a/src/include/catalog/pg_index.h
+++ b/src/include/catalog/pg_index.h
@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pg_index.h,v 1.20 2001/05/17 00:29:52 momjian Exp $
+ * $Id: pg_index.h,v 1.21 2001/07/09 18:35:52 momjian Exp $
  *
  * NOTES
  *	  the genbki.sh script reads this file and generates .bki
@@ -49,8 +49,10 @@ CATALOG(pg_index)
 	int2vector	indkey;
 	oidvector	indclass;
 	bool		indisclustered;	/* unused */
-	bool		indislossy;		/* do we fetch false tuples (lossy
-								 * compression)? */
+	bool		indislossy;		/* index hit must be reevaluated against heap
+								 * value to make sure it really is match;
+								 * typically used by hash.
+								 */
 	bool		indhaskeytype;	/* not used, originally added by GIST */
 	bool		indisunique;	/* is this a unique index? */
 	bool		indisprimary;	/* is this index for primary key */