mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-09 09:03:23 +02:00
629b3af27d
This isn't fully tested as yet, in particular I'm not sure that the "foo--unpackaged--1.0.sql" scripts are OK. But it's time to get some buildfarm cycles on it. sepgsql is not converted to an extension, mainly because it seems to require a very nonstandard installation process. Dimitri Fontaine and Tom Lane
23 lines
747 B
PL/PgSQL
23 lines
747 B
PL/PgSQL
/* contrib/pg_freespacemap/pg_freespacemap--1.0.sql */
|
|
|
|
-- Register the C function.
|
|
CREATE OR REPLACE FUNCTION pg_freespace(regclass, bigint)
|
|
RETURNS int2
|
|
AS 'MODULE_PATHNAME', 'pg_freespace'
|
|
LANGUAGE C STRICT;
|
|
|
|
-- pg_freespace shows the recorded space avail at each block in a relation
|
|
CREATE OR REPLACE FUNCTION
|
|
pg_freespace(rel regclass, blkno OUT bigint, avail OUT int2)
|
|
RETURNS SETOF RECORD
|
|
AS $$
|
|
SELECT blkno, pg_freespace($1, blkno) AS avail
|
|
FROM generate_series(0, pg_relation_size($1) / current_setting('block_size')::bigint - 1) AS blkno;
|
|
$$
|
|
LANGUAGE SQL;
|
|
|
|
|
|
-- Don't want these to be available to public.
|
|
REVOKE ALL ON FUNCTION pg_freespace(regclass, bigint) FROM PUBLIC;
|
|
REVOKE ALL ON FUNCTION pg_freespace(regclass) FROM PUBLIC;
|