postgresql/contrib/pg_buffercache/pg_buffercache--1.0.sql

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/* contrib/pg_buffercache/pg_buffercache--1.0.sql */
-- Register the function.
CREATE 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,
relforknumber int2, relblocknumber int8, isdirty bool, usagecount int2);
-- Don't want these to be available to public.
REVOKE ALL ON FUNCTION pg_buffercache_pages() FROM PUBLIC;
REVOKE ALL ON pg_buffercache FROM PUBLIC;