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Document meaning of lossy column.
Mon, 9 Jul 2001 18:35:52 +0000 (18:35 +0000)
Mon, 9 Jul 2001 18:35:52 +0000 (18:35 +0000)

diff --git a/src/include/catalog/pg_index.h b/src/include/catalog/pg_index.h
index c7af574c7c404dce330906eda717f6d7202f0ad5..a490c8b5828725a852feea95fb8b5faad5a7dba7 100644 (file)
--- 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年05月17日 00:29:52 momjian Exp $
+ * $Id: pg_index.h,v 1.21 2001年07月09日 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 */
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