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-rw-r--r--src/backend/access/heap/visibilitymap.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/access/heap/visibilitymap.c b/src/backend/access/heap/visibilitymap.c
index e3cbb4e3dd8..2d037a5f3f5 100644
--- a/src/backend/access/heap/visibilitymap.c
+++ b/src/backend/access/heap/visibilitymap.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/access/heap/visibilitymap.c,v 1.1 2008/12/03 13:05:22 heikki Exp $
+ * $PostgreSQL: pgsql/src/backend/access/heap/visibilitymap.c,v 1.2 2008/12/06 17:31:37 heikki Exp $
*
* INTERFACE ROUTINES
* visibilitymap_clear - clear a bit in the visibility map
@@ -101,7 +101,7 @@
* extra headers, so the whole page minus except for the standard page header
* is used for the bitmap.
*/
-#define MAPSIZE (BLCKSZ - SizeOfPageHeaderData)
+#define MAPSIZE (BLCKSZ - MAXALIGN(SizeOfPageHeaderData))
/* Number of bits allocated for each heap block. */
#define BITS_PER_HEAPBLOCK 1