pg_ivm/pg_ivm--1.0.sql
Yugo Nagata 417c291454
Change the schema from pg_catalog to pgivm (#116)
Previously, pg_upgrade failed due to the permission denied
because the pg_ivm_immv catalog was in the pg_catalog catalog
(Issue #79). To fix this, all objects created by pg_ivm are
moved to theschema pgivm, which is also created by pg_ivm.

pg_ivm is still not relocatable and this must be installed
to the pgivm schema because the catalog and some internal
functions are referred to unqualified by the schema name
from the pg_ivm module. In future, this might be able to
relocatable during installation, though.

This commit affects compatibility with previous releases.
To allow to access objects like create_immv function as
previous, you need to qualify them with the schema name
or setup search_path properly.
2025-02-17 12:07:21 +09:00

64 lines
1.4 KiB
PL/PgSQL

-- catalog
CREATE SCHEMA __pg_ivm__;
CREATE TABLE __pg_ivm__.pg_ivm_immv(
immvrelid regclass NOT NULL,
viewdef text NOT NULL,
CONSTRAINT pg_ivm_immv_pkey PRIMARY KEY (immvrelid)
);
ALTER TABLE __pg_ivm__.pg_ivm_immv SET SCHEMA pg_catalog;
SELECT pg_catalog.pg_extension_config_dump('pg_catalog.pg_ivm_immv', '');
-- functions
CREATE FUNCTION create_immv(text, text)
RETURNS bigint
STRICT
AS 'MODULE_PATHNAME', 'create_immv'
LANGUAGE C;
-- trigger functions
CREATE FUNCTION "IVM_immediate_before"()
RETURNS trigger
AS 'MODULE_PATHNAME', 'IVM_immediate_before'
LANGUAGE C;
CREATE FUNCTION "IVM_immediate_maintenance"()
RETURNS trigger
AS 'MODULE_PATHNAME', 'IVM_immediate_maintenance'
LANGUAGE C;
CREATE FUNCTION "IVM_prevent_immv_change"()
RETURNS trigger
AS 'MODULE_PATHNAME', 'IVM_prevent_immv_change'
LANGUAGE C;
/*
* DDL trigger that removes entry from pg_ivm_immv
*/
CREATE FUNCTION pg_catalog.pg_ivm_sql_drop_trigger_func()
RETURNS event_trigger AS $$
DECLARE
pg_class_oid OID;
relids REGCLASS[];
BEGIN
pg_class_oid = 'pg_catalog.pg_class'::regclass;
/* Find relids to remove */
DELETE FROM pg_catalog.pg_ivm_immv
USING pg_catalog.pg_event_trigger_dropped_objects() AS events
WHERE immvrelid = events.objid AND
events.classid = pg_class_oid AND events.objsubid = 0;
END
$$ LANGUAGE plpgsql;
CREATE EVENT TRIGGER pg_ivm_sql_drop_trigger
ON sql_drop
EXECUTE PROCEDURE pg_catalog.pg_ivm_sql_drop_trigger_func();