citus/src/backend/columnar/sql/downgrades/citus_columnar--11.1-1--11....

117 lines
4.7 KiB
PL/PgSQL

CREATE OR REPLACE FUNCTION pg_catalog.alter_columnar_table_set(
table_name regclass,
chunk_group_row_limit int DEFAULT NULL,
stripe_row_limit int DEFAULT NULL,
compression name DEFAULT null,
compression_level int DEFAULT NULL)
RETURNS void
LANGUAGE C
AS 'MODULE_PATHNAME', 'alter_columnar_table_set';
COMMENT ON FUNCTION pg_catalog.alter_columnar_table_set(
table_name regclass,
chunk_group_row_limit int,
stripe_row_limit int,
compression name,
compression_level int)
IS 'set one or more options on a columnar table, when set to NULL no change is made';
CREATE OR REPLACE FUNCTION pg_catalog.alter_columnar_table_reset(
table_name regclass,
chunk_group_row_limit bool DEFAULT false,
stripe_row_limit bool DEFAULT false,
compression bool DEFAULT false,
compression_level bool DEFAULT false)
RETURNS void
LANGUAGE C
AS 'MODULE_PATHNAME', 'alter_columnar_table_reset';
COMMENT ON FUNCTION pg_catalog.alter_columnar_table_reset(
table_name regclass,
chunk_group_row_limit bool,
stripe_row_limit bool,
compression bool,
compression_level bool)
IS 'reset on or more options on a columnar table to the system defaults';
CREATE OR REPLACE FUNCTION columnar_internal.columnar_ensure_am_depends_catalog()
RETURNS void
LANGUAGE plpgsql
SET search_path = pg_catalog
AS $func$
BEGIN
INSERT INTO pg_depend
SELECT -- Define a dependency edge from "columnar table access method" ..
'pg_am'::regclass::oid as classid,
(select oid from pg_am where amname = 'columnar') as objid,
0 as objsubid,
-- ... to each object that is registered to pg_class and that lives
-- in "columnar" schema. That contains catalog tables, indexes
-- created on them and the sequences created in "columnar" schema.
--
-- Given the possibility of user might have created their own objects
-- in columnar schema, we explicitly specify list of objects that we
-- are interested in.
'pg_class'::regclass::oid as refclassid,
columnar_schema_members.relname::regclass::oid as refobjid,
0 as refobjsubid,
'n' as deptype
FROM (VALUES ('columnar.chunk'),
('columnar.chunk_group'),
('columnar.chunk_group_pkey'),
('columnar.chunk_pkey'),
('columnar.options'),
('columnar.options_pkey'),
('columnar.storageid_seq'),
('columnar.stripe'),
('columnar.stripe_first_row_number_idx'),
('columnar.stripe_pkey')
) columnar_schema_members(relname)
-- Avoid inserting duplicate entries into pg_depend.
EXCEPT TABLE pg_depend;
END;
$func$;
COMMENT ON FUNCTION columnar_internal.columnar_ensure_am_depends_catalog()
IS 'internal function responsible for creating dependencies from columnar '
'table access method to the rel objects in columnar schema';
DROP VIEW columnar.options;
DROP VIEW columnar.stripe;
DROP VIEW columnar.chunk_group;
DROP VIEW columnar.chunk;
DROP VIEW columnar.storage;
DROP FUNCTION columnar.get_storage_id(regclass);
DROP SCHEMA columnar;
-- move columnar_internal functions back to citus_internal
ALTER FUNCTION columnar_internal.upgrade_columnar_storage(regclass) SET SCHEMA citus_internal;
ALTER FUNCTION columnar_internal.downgrade_columnar_storage(regclass) SET SCHEMA citus_internal;
ALTER FUNCTION columnar_internal.columnar_ensure_am_depends_catalog() SET SCHEMA citus_internal;
ALTER SCHEMA columnar_internal RENAME TO columnar;
GRANT USAGE ON SCHEMA columnar TO PUBLIC;
GRANT SELECT ON columnar.options TO PUBLIC;
GRANT SELECT ON columnar.stripe TO PUBLIC;
GRANT SELECT ON columnar.chunk_group TO PUBLIC;
-- detach relations from citus_columnar
ALTER EXTENSION citus_columnar DROP SCHEMA columnar;
ALTER EXTENSION citus_columnar DROP SEQUENCE columnar.storageid_seq;
-- columnar tables
ALTER EXTENSION citus_columnar DROP TABLE columnar.options;
ALTER EXTENSION citus_columnar DROP TABLE columnar.stripe;
ALTER EXTENSION citus_columnar DROP TABLE columnar.chunk_group;
ALTER EXTENSION citus_columnar DROP TABLE columnar.chunk;
ALTER EXTENSION citus_columnar DROP FUNCTION columnar.columnar_handler;
ALTER EXTENSION citus_columnar DROP ACCESS METHOD columnar;
ALTER EXTENSION citus_columnar DROP FUNCTION pg_catalog.alter_columnar_table_set;
ALTER EXTENSION citus_columnar DROP FUNCTION pg_catalog.alter_columnar_table_reset;
-- functions under citus_internal for columnar
ALTER EXTENSION citus_columnar DROP FUNCTION citus_internal.upgrade_columnar_storage;
ALTER EXTENSION citus_columnar DROP FUNCTION citus_internal.downgrade_columnar_storage;
ALTER EXTENSION citus_columnar DROP FUNCTION citus_internal.columnar_ensure_am_depends_catalog;