Some further kibitzing on cachability of datetime functions.

In particular, mark all I/O functions that can produce or consume
a date as noncachable, in light of existence of DateStyle variable.

src/include/catalog/catversion.h

@@ -37,7 +37,7 @@
  * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: catversion.h,v 1.97 2001/10/03 05:29:24 thomas Exp $
+ * $Id: catversion.h,v 1.98 2001/10/03 17:22:05 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -53,6 +53,6 @@
  */
 
 /*							yyyymmddN */
-#define CATALOG_VERSION_NO	200110011
+#define CATALOG_VERSION_NO	200110031
 
 #endif