31 lines
1.1 KiB
SQL
31 lines
1.1 KiB
SQL
/* contrib/pg_buffercache/pg_buffercache--1.3--1.4.sql */
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-- complain if script is sourced in psql, rather than via ALTER EXTENSION
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\echo Use "ALTER EXTENSION pg_buffercache UPDATE TO '1.4'" to load this file. \quit
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/* First we have to remove them from the extension */
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ALTER EXTENSION pg_buffercache DROP VIEW pg_buffercache;
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ALTER EXTENSION pg_buffercache DROP FUNCTION pg_buffercache_pages();
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/* Then we can drop them */
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DROP VIEW pg_buffercache;
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DROP FUNCTION pg_buffercache_pages();
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/* Now redefine */
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CREATE FUNCTION pg_buffercache_pages()
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RETURNS SETOF RECORD
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AS 'MODULE_PATHNAME', 'pg_buffercache_pages_v1_4'
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LANGUAGE C PARALLEL SAFE;
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CREATE VIEW pg_buffercache AS
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SELECT P.* FROM pg_buffercache_pages() AS P
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(bufferid integer, relfilenode int8, reltablespace oid, reldatabase oid,
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relforknumber int2, relblocknumber int8, isdirty bool, usagecount int2,
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pinning_backends int4);
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-- Don't want these to be available to public.
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REVOKE ALL ON FUNCTION pg_buffercache_pages() FROM PUBLIC;
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REVOKE ALL ON pg_buffercache FROM PUBLIC;
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GRANT EXECUTE ON FUNCTION pg_buffercache_pages() TO pg_monitor;
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GRANT SELECT ON pg_buffercache TO pg_monitor;
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