-- Adjust this setting to control where the objects get created.
SET search_path = public;

-- Register the function.
CREATE OR REPLACE FUNCTION pg_buffercache_pages()
RETURNS SETOF RECORD
AS 'MODULE_PATHNAME', 'pg_buffercache_pages'
LANGUAGE 'C';

-- Create a view for convenient access.
CREATE VIEW pg_buffercache AS
	SELECT P.* FROM pg_buffercache_pages() AS P
 	(bufferid integer, relfilenode oid, reltablespace oid, reldatabase oid, 
 	 relblocknumber int8, isdirty bool);
 
-- Don't want these to be available at public.
REVOKE ALL ON FUNCTION pg_buffercache_pages() FROM PUBLIC;
REVOKE ALL ON pg_buffercache FROM PUBLIC;