Make OIDs optional, per discussions in pghackers. WITH OIDS is still the

default, but OIDS are removed from many system catalogs that don't need them.
Some interesting side effects: TOAST pointers are 20 bytes not 32 now;
pg_description has a three-column key instead of one.

Bugs fixed in passing: BINARY cursors work again; pg_class.relhaspkey
has some usefulness; pg_dump dumps comments on indexes, rules, and
triggers in a valid order.

initdb forced.

src/include/postgres.h

@@ -10,7 +10,7 @@
  * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
  * Portions Copyright (c) 1995, Regents of the University of California
  *
- * $Id: postgres.h,v 1.49 2001/06/12 05:55:50 tgl Exp $
+ * $Id: postgres.h,v 1.50 2001/08/10 18:57:41 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -55,7 +55,7 @@
  */
 
 /* ----------------
- *		struct varattrib is the header of a varlena object that may have been TOASTed.
+ * struct varattrib is the header of a varlena object that may have been TOASTed.
  * ----------------
  */
 #define TUPLE_TOASTER_ACTIVE
@@ -78,9 +78,6 @@ typedef struct varattrib
 			int32		va_extsize;		/* External saved size */
 			Oid			va_valueid;		/* Unique identifier of value */
 			Oid			va_toastrelid;	/* RelID where to find chunks */
-			Oid			va_toastidxid;	/* Main tables row Oid */
-			Oid			va_rowid;		/* Referencing row Oid */
-			int16		va_attno;		/* Main tables attno */
 		}			va_external;/* External stored attribute */
 
 		char		va_data[1]; /* Plain stored attribute */
@@ -573,6 +570,8 @@ extern int	assertTest(int val);
 
 #define BOOTSTRAP
 
+#define BKI_WITHOUT_OIDS
+
 /* these need to expand into some harmless, repeatable declaration */
 #define DATA(x)   extern int errno
 #define DESCR(x)  extern int errno