timescaledb/sql/restoring.sql
Sven Klemm 28c7457faf Move scheduler functions to _timescaledb_functions schema
To increase schema security we do not want to mix our own internal
objects with user objects. Since chunks are created in the
_timescaledb_internal schema our internal functions should live in
a different dedicated schema. This patch make the necessary
adjustments for the following functions:

- restart_background_workers()
- stop_background_workers()
- start_background_workers()
- alter_job_set_hypertable_id(integer,regclass)
2023-08-28 14:21:11 +02:00

43 lines
1.6 KiB
PL/PgSQL

-- This file and its contents are licensed under the Apache License 2.0.
-- Please see the included NOTICE for copyright information and
-- LICENSE-APACHE for a copy of the license.
CREATE OR REPLACE FUNCTION @extschema@.timescaledb_pre_restore() RETURNS BOOL AS
$BODY$
DECLARE
db text;
BEGIN
SELECT current_database() INTO db;
EXECUTE format($$ALTER DATABASE %I SET timescaledb.restoring ='on'$$, db);
SET SESSION timescaledb.restoring = 'on';
PERFORM _timescaledb_functions.stop_background_workers();
--exported uuid may be included in the dump so backup the version
UPDATE _timescaledb_catalog.metadata SET key='exported_uuid_bak' WHERE key='exported_uuid';
RETURN true;
END
$BODY$
LANGUAGE PLPGSQL SET search_path TO pg_catalog, pg_temp;
CREATE OR REPLACE FUNCTION @extschema@.timescaledb_post_restore() RETURNS BOOL AS
$BODY$
DECLARE
db text;
BEGIN
SELECT current_database() INTO db;
EXECUTE format($$ALTER DATABASE %I RESET timescaledb.restoring $$, db);
-- we cannot use reset here because the reset_val might not be off
SET timescaledb.restoring TO off;
PERFORM _timescaledb_functions.restart_background_workers();
--try to restore the backed up uuid, if the restore did not set one
INSERT INTO _timescaledb_catalog.metadata
SELECT 'exported_uuid', value, include_in_telemetry FROM _timescaledb_catalog.metadata WHERE key='exported_uuid_bak'
ON CONFLICT DO NOTHING;
DELETE FROM _timescaledb_catalog.metadata WHERE key='exported_uuid_bak';
RETURN true;
END
$BODY$
LANGUAGE PLPGSQL SET search_path TO pg_catalog, pg_temp;