codekingpro/portable-devtools

1/* contrib/pg_freespacemap/pg_freespacemap--1.1.sql */2 3-- complain if script is sourced in psql, rather than via CREATE EXTENSION4\echo Use "CREATE EXTENSION pg_freespacemap" to load this file. \quit5 6-- Register the C function.7CREATE FUNCTION pg_freespace(regclass, bigint)8RETURNS int29AS 'MODULE_PATHNAME', 'pg_freespace'10LANGUAGE C STRICT PARALLEL SAFE;11 12-- pg_freespace shows the recorded space avail at each block in a relation13CREATE FUNCTION14  pg_freespace(rel regclass, blkno OUT bigint, avail OUT int2)15RETURNS SETOF RECORD16AS $$17  SELECT blkno, pg_freespace($1, blkno) AS avail18  FROM generate_series(0, pg_relation_size($1) / current_setting('block_size')::bigint - 1) AS blkno;19$$20LANGUAGE SQL PARALLEL SAFE;21 22 23-- Don't want these to be available to public.24REVOKE ALL ON FUNCTION pg_freespace(regclass, bigint) FROM PUBLIC;25REVOKE ALL ON FUNCTION pg_freespace(regclass) FROM PUBLIC;26