here it is as requested by Bruce.

I tested it restoring my database with > 100000 BLOBS, and dumping it out.
But unfortunatly I can not restore it back due to problems in pg_dump.

--
Sincerely Yours,
Denis Perchine

src/include/storage/large_object.h

@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: large_object.h,v 1.15 2000/10/08 03:53:15 momjian Exp $
+ * $Id: large_object.h,v 1.16 2000/10/21 15:55:29 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -22,17 +22,11 @@
 /*
  * This structure will eventually have lots more stuff associated with it.
  */
-typedef struct LargeObjectDesc
-{
-	Relation	heap_r;			/* heap relation */
-	Relation	index_r;		/* index relation on seqno attribute */
-	IndexScanDesc iscan;		/* index scan we're using */
-	TupleDesc	hdesc;			/* heap relation tuple desc */
-	TupleDesc	idesc;			/* index relation tuple desc */
-	uint32		lowbyte;		/* low byte on the current page */
-	uint32		highbyte;		/* high byte on the current page */
+typedef struct LargeObjectDesc {
+	Relation	heap_r;
+	Relation	index_r;
 	uint32		offset;			/* current seek pointer */
-	ItemPointerData htid;		/* tid of current heap tuple */
+	Oid		id;
 
 #define IFS_RDLOCK		(1 << 0)
 #define IFS_WRLOCK		(1 << 1)
@@ -55,7 +49,4 @@ extern int	inv_tell(LargeObjectDesc *obj_desc);
 extern int	inv_read(LargeObjectDesc *obj_desc, char *buf, int nbytes);
 extern int	inv_write(LargeObjectDesc *obj_desc, char *buf, int nbytes);
 
-/* added for buffer leak prevention [ PA ] */
-extern void inv_cleanindex(LargeObjectDesc *obj_desc);
-
 #endif	 /* LARGE_OBJECT_H */