Restructure representation of aggregate functions so that they have pg_proc

entries, per pghackers discussion.  This fixes aggregates to live in
namespaces, and also simplifies/speeds up lookup in parse_func.c.
Also, add a 'proimplicit' flag to pg_proc that controls whether a type
coercion function may be invoked implicitly, or only explicitly.  The
current settings of these flags are more permissive than I would like,
but we will need to debate and refine the behavior; for now, I avoided
breaking regression tests as much as I could.

1 files changed, 6 insertions, 5 deletions

diff --git a/src/tutorial/syscat.source b/src/tutorial/syscat.source
index f1be25728ca..a43277f45d1 100644
--- a/src/tutorial/syscat.source
+++ b/src/tutorial/syscat.source
@@ -7,7 +7,7 @@
 -- Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
 -- Portions Copyright (c) 1994, Regents of the University of California
 --
--- $Id: syscat.source,v 1.5 2001/08/21 16:36:06 tgl Exp $
+-- $Id: syscat.source,v 1.6 2002/04/11 20:00:18 tgl Exp $
 --
 ---------------------------------------------------------------------------
 
@@ -129,10 +129,11 @@ SELECT p.proname, p.pronargs, t.typname
 --
 -- lists all aggregate functions and the types to which they can be applied
 --
-SELECT a.aggname, t.typname
-  FROM pg_aggregate a, pg_type t
-  WHERE a.aggbasetype = t.oid
-  ORDER BY aggname, typname;
+SELECT p.proname, t.typname
+  FROM pg_aggregate a, pg_proc p, pg_type t
+  WHERE a.aggfnoid = p.oid
+    and p.proargtypes[0] = t.oid
+  ORDER BY proname, typname;
 
 
 --