mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-09-28 06:21:51 +02:00
93f2349c36
This event can happen when using SET ACCESS METHOD, as the data files of the materialized need a full refresh but this command tag was not updated to reflect that. The documentation is updated to track this behavior. Author: Onder Kalaci Discussion: https://postgr.es/m/CACawEhXwHN3X34FiwoYG8vXR-oyUdrp7qcfRWSzS+NPahS5gSw@mail.gmail.com Backpatch-through: 15
474 lines
16 KiB
PL/PgSQL
474 lines
16 KiB
PL/PgSQL
-- should fail, return type mismatch
|
|
create event trigger regress_event_trigger
|
|
on ddl_command_start
|
|
execute procedure pg_backend_pid();
|
|
|
|
-- OK
|
|
create function test_event_trigger() returns event_trigger as $$
|
|
BEGIN
|
|
RAISE NOTICE 'test_event_trigger: % %', tg_event, tg_tag;
|
|
END
|
|
$$ language plpgsql;
|
|
|
|
-- should fail, can't call it as a plain function
|
|
SELECT test_event_trigger();
|
|
|
|
-- should fail, event triggers cannot have declared arguments
|
|
create function test_event_trigger_arg(name text)
|
|
returns event_trigger as $$ BEGIN RETURN 1; END $$ language plpgsql;
|
|
|
|
-- should fail, SQL functions cannot be event triggers
|
|
create function test_event_trigger_sql() returns event_trigger as $$
|
|
SELECT 1 $$ language sql;
|
|
|
|
-- should fail, no elephant_bootstrap entry point
|
|
create event trigger regress_event_trigger on elephant_bootstrap
|
|
execute procedure test_event_trigger();
|
|
|
|
-- OK
|
|
create event trigger regress_event_trigger on ddl_command_start
|
|
execute procedure test_event_trigger();
|
|
|
|
-- OK
|
|
create event trigger regress_event_trigger_end on ddl_command_end
|
|
execute function test_event_trigger();
|
|
|
|
-- should fail, food is not a valid filter variable
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
when food in ('sandwich')
|
|
execute procedure test_event_trigger();
|
|
|
|
-- should fail, sandwich is not a valid command tag
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
when tag in ('sandwich')
|
|
execute procedure test_event_trigger();
|
|
|
|
-- should fail, create skunkcabbage is not a valid command tag
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
when tag in ('create table', 'create skunkcabbage')
|
|
execute procedure test_event_trigger();
|
|
|
|
-- should fail, can't have event triggers on event triggers
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
when tag in ('DROP EVENT TRIGGER')
|
|
execute procedure test_event_trigger();
|
|
|
|
-- should fail, can't have event triggers on global objects
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
when tag in ('CREATE ROLE')
|
|
execute procedure test_event_trigger();
|
|
|
|
-- should fail, can't have event triggers on global objects
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
when tag in ('CREATE DATABASE')
|
|
execute procedure test_event_trigger();
|
|
|
|
-- should fail, can't have event triggers on global objects
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
when tag in ('CREATE TABLESPACE')
|
|
execute procedure test_event_trigger();
|
|
|
|
-- should fail, can't have same filter variable twice
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
when tag in ('create table') and tag in ('CREATE FUNCTION')
|
|
execute procedure test_event_trigger();
|
|
|
|
-- should fail, can't have arguments
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
execute procedure test_event_trigger('argument not allowed');
|
|
|
|
-- OK
|
|
create event trigger regress_event_trigger2 on ddl_command_start
|
|
when tag in ('create table', 'CREATE FUNCTION')
|
|
execute procedure test_event_trigger();
|
|
|
|
-- OK
|
|
comment on event trigger regress_event_trigger is 'test comment';
|
|
|
|
-- drop as non-superuser should fail
|
|
create role regress_evt_user;
|
|
set role regress_evt_user;
|
|
create event trigger regress_event_trigger_noperms on ddl_command_start
|
|
execute procedure test_event_trigger();
|
|
reset role;
|
|
|
|
-- test enabling and disabling
|
|
alter event trigger regress_event_trigger disable;
|
|
-- fires _trigger2 and _trigger_end should fire, but not _trigger
|
|
create table event_trigger_fire1 (a int);
|
|
alter event trigger regress_event_trigger enable;
|
|
set session_replication_role = replica;
|
|
-- fires nothing
|
|
create table event_trigger_fire2 (a int);
|
|
alter event trigger regress_event_trigger enable replica;
|
|
-- fires only _trigger
|
|
create table event_trigger_fire3 (a int);
|
|
alter event trigger regress_event_trigger enable always;
|
|
-- fires only _trigger
|
|
create table event_trigger_fire4 (a int);
|
|
reset session_replication_role;
|
|
-- fires all three
|
|
create table event_trigger_fire5 (a int);
|
|
-- non-top-level command
|
|
create function f1() returns int
|
|
language plpgsql
|
|
as $$
|
|
begin
|
|
create table event_trigger_fire6 (a int);
|
|
return 0;
|
|
end $$;
|
|
select f1();
|
|
-- non-top-level command
|
|
create procedure p1()
|
|
language plpgsql
|
|
as $$
|
|
begin
|
|
create table event_trigger_fire7 (a int);
|
|
end $$;
|
|
call p1();
|
|
|
|
-- clean up
|
|
alter event trigger regress_event_trigger disable;
|
|
drop table event_trigger_fire2, event_trigger_fire3, event_trigger_fire4, event_trigger_fire5, event_trigger_fire6, event_trigger_fire7;
|
|
drop routine f1(), p1();
|
|
|
|
-- regress_event_trigger_end should fire on these commands
|
|
grant all on table event_trigger_fire1 to public;
|
|
comment on table event_trigger_fire1 is 'here is a comment';
|
|
revoke all on table event_trigger_fire1 from public;
|
|
drop table event_trigger_fire1;
|
|
create foreign data wrapper useless;
|
|
create server useless_server foreign data wrapper useless;
|
|
create user mapping for regress_evt_user server useless_server;
|
|
alter default privileges for role regress_evt_user
|
|
revoke delete on tables from regress_evt_user;
|
|
|
|
-- alter owner to non-superuser should fail
|
|
alter event trigger regress_event_trigger owner to regress_evt_user;
|
|
|
|
-- alter owner to superuser should work
|
|
alter role regress_evt_user superuser;
|
|
alter event trigger regress_event_trigger owner to regress_evt_user;
|
|
|
|
-- should fail, name collision
|
|
alter event trigger regress_event_trigger rename to regress_event_trigger2;
|
|
|
|
-- OK
|
|
alter event trigger regress_event_trigger rename to regress_event_trigger3;
|
|
|
|
-- should fail, doesn't exist any more
|
|
drop event trigger regress_event_trigger;
|
|
|
|
-- should fail, regress_evt_user owns some objects
|
|
drop role regress_evt_user;
|
|
|
|
-- cleanup before next test
|
|
-- these are all OK; the second one should emit a NOTICE
|
|
drop event trigger if exists regress_event_trigger2;
|
|
drop event trigger if exists regress_event_trigger2;
|
|
drop event trigger regress_event_trigger3;
|
|
drop event trigger regress_event_trigger_end;
|
|
|
|
-- test support for dropped objects
|
|
CREATE SCHEMA schema_one authorization regress_evt_user;
|
|
CREATE SCHEMA schema_two authorization regress_evt_user;
|
|
CREATE SCHEMA audit_tbls authorization regress_evt_user;
|
|
CREATE TEMP TABLE a_temp_tbl ();
|
|
SET SESSION AUTHORIZATION regress_evt_user;
|
|
|
|
CREATE TABLE schema_one.table_one(a int);
|
|
CREATE TABLE schema_one."table two"(a int);
|
|
CREATE TABLE schema_one.table_three(a int);
|
|
CREATE TABLE audit_tbls.schema_one_table_two(the_value text);
|
|
|
|
CREATE TABLE schema_two.table_two(a int);
|
|
CREATE TABLE schema_two.table_three(a int, b text);
|
|
CREATE TABLE audit_tbls.schema_two_table_three(the_value text);
|
|
|
|
CREATE OR REPLACE FUNCTION schema_two.add(int, int) RETURNS int LANGUAGE plpgsql
|
|
CALLED ON NULL INPUT
|
|
AS $$ BEGIN RETURN coalesce($1,0) + coalesce($2,0); END; $$;
|
|
CREATE AGGREGATE schema_two.newton
|
|
(BASETYPE = int, SFUNC = schema_two.add, STYPE = int);
|
|
|
|
RESET SESSION AUTHORIZATION;
|
|
|
|
CREATE TABLE undroppable_objs (
|
|
object_type text,
|
|
object_identity text
|
|
);
|
|
INSERT INTO undroppable_objs VALUES
|
|
('table', 'schema_one.table_three'),
|
|
('table', 'audit_tbls.schema_two_table_three');
|
|
|
|
CREATE TABLE dropped_objects (
|
|
type text,
|
|
schema text,
|
|
object text
|
|
);
|
|
|
|
-- This tests errors raised within event triggers; the one in audit_tbls
|
|
-- uses 2nd-level recursive invocation via test_evtrig_dropped_objects().
|
|
CREATE OR REPLACE FUNCTION undroppable() RETURNS event_trigger
|
|
LANGUAGE plpgsql AS $$
|
|
DECLARE
|
|
obj record;
|
|
BEGIN
|
|
PERFORM 1 FROM pg_tables WHERE tablename = 'undroppable_objs';
|
|
IF NOT FOUND THEN
|
|
RAISE NOTICE 'table undroppable_objs not found, skipping';
|
|
RETURN;
|
|
END IF;
|
|
FOR obj IN
|
|
SELECT * FROM pg_event_trigger_dropped_objects() JOIN
|
|
undroppable_objs USING (object_type, object_identity)
|
|
LOOP
|
|
RAISE EXCEPTION 'object % of type % cannot be dropped',
|
|
obj.object_identity, obj.object_type;
|
|
END LOOP;
|
|
END;
|
|
$$;
|
|
|
|
CREATE EVENT TRIGGER undroppable ON sql_drop
|
|
EXECUTE PROCEDURE undroppable();
|
|
|
|
CREATE OR REPLACE FUNCTION test_evtrig_dropped_objects() RETURNS event_trigger
|
|
LANGUAGE plpgsql AS $$
|
|
DECLARE
|
|
obj record;
|
|
BEGIN
|
|
FOR obj IN SELECT * FROM pg_event_trigger_dropped_objects()
|
|
LOOP
|
|
IF obj.object_type = 'table' THEN
|
|
EXECUTE format('DROP TABLE IF EXISTS audit_tbls.%I',
|
|
format('%s_%s', obj.schema_name, obj.object_name));
|
|
END IF;
|
|
|
|
INSERT INTO dropped_objects
|
|
(type, schema, object) VALUES
|
|
(obj.object_type, obj.schema_name, obj.object_identity);
|
|
END LOOP;
|
|
END
|
|
$$;
|
|
|
|
CREATE EVENT TRIGGER regress_event_trigger_drop_objects ON sql_drop
|
|
WHEN TAG IN ('drop table', 'drop function', 'drop view',
|
|
'drop owned', 'drop schema', 'alter table')
|
|
EXECUTE PROCEDURE test_evtrig_dropped_objects();
|
|
|
|
ALTER TABLE schema_one.table_one DROP COLUMN a;
|
|
DROP SCHEMA schema_one, schema_two CASCADE;
|
|
DELETE FROM undroppable_objs WHERE object_identity = 'audit_tbls.schema_two_table_three';
|
|
DROP SCHEMA schema_one, schema_two CASCADE;
|
|
DELETE FROM undroppable_objs WHERE object_identity = 'schema_one.table_three';
|
|
DROP SCHEMA schema_one, schema_two CASCADE;
|
|
|
|
SELECT * FROM dropped_objects WHERE schema IS NULL OR schema <> 'pg_toast';
|
|
|
|
DROP OWNED BY regress_evt_user;
|
|
SELECT * FROM dropped_objects WHERE type = 'schema';
|
|
|
|
DROP ROLE regress_evt_user;
|
|
|
|
DROP EVENT TRIGGER regress_event_trigger_drop_objects;
|
|
DROP EVENT TRIGGER undroppable;
|
|
|
|
-- Event triggers on relations.
|
|
CREATE OR REPLACE FUNCTION event_trigger_report_dropped()
|
|
RETURNS event_trigger
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
DECLARE r record;
|
|
BEGIN
|
|
FOR r IN SELECT * from pg_event_trigger_dropped_objects()
|
|
LOOP
|
|
IF NOT r.normal AND NOT r.original THEN
|
|
CONTINUE;
|
|
END IF;
|
|
RAISE NOTICE 'NORMAL: orig=% normal=% istemp=% type=% identity=% name=% args=%',
|
|
r.original, r.normal, r.is_temporary, r.object_type,
|
|
r.object_identity, r.address_names, r.address_args;
|
|
END LOOP;
|
|
END; $$;
|
|
CREATE EVENT TRIGGER regress_event_trigger_report_dropped ON sql_drop
|
|
EXECUTE PROCEDURE event_trigger_report_dropped();
|
|
CREATE OR REPLACE FUNCTION event_trigger_report_end()
|
|
RETURNS event_trigger
|
|
LANGUAGE plpgsql
|
|
AS $$
|
|
DECLARE r RECORD;
|
|
BEGIN
|
|
FOR r IN SELECT * FROM pg_event_trigger_ddl_commands()
|
|
LOOP
|
|
RAISE NOTICE 'END: command_tag=% type=% identity=%',
|
|
r.command_tag, r.object_type, r.object_identity;
|
|
END LOOP;
|
|
END; $$;
|
|
CREATE EVENT TRIGGER regress_event_trigger_report_end ON ddl_command_end
|
|
EXECUTE PROCEDURE event_trigger_report_end();
|
|
|
|
CREATE SCHEMA evttrig
|
|
CREATE TABLE one (col_a SERIAL PRIMARY KEY, col_b text DEFAULT 'forty two', col_c SERIAL)
|
|
CREATE INDEX one_idx ON one (col_b)
|
|
CREATE TABLE two (col_c INTEGER CHECK (col_c > 0) REFERENCES one DEFAULT 42)
|
|
CREATE TABLE id (col_d int NOT NULL GENERATED ALWAYS AS IDENTITY);
|
|
|
|
-- Partitioned tables with a partitioned index
|
|
CREATE TABLE evttrig.parted (
|
|
id int PRIMARY KEY)
|
|
PARTITION BY RANGE (id);
|
|
CREATE TABLE evttrig.part_1_10 PARTITION OF evttrig.parted (id)
|
|
FOR VALUES FROM (1) TO (10);
|
|
CREATE TABLE evttrig.part_10_20 PARTITION OF evttrig.parted (id)
|
|
FOR VALUES FROM (10) TO (20) PARTITION BY RANGE (id);
|
|
CREATE TABLE evttrig.part_10_15 PARTITION OF evttrig.part_10_20 (id)
|
|
FOR VALUES FROM (10) TO (15);
|
|
CREATE TABLE evttrig.part_15_20 PARTITION OF evttrig.part_10_20 (id)
|
|
FOR VALUES FROM (15) TO (20);
|
|
|
|
ALTER TABLE evttrig.two DROP COLUMN col_c;
|
|
ALTER TABLE evttrig.one ALTER COLUMN col_b DROP DEFAULT;
|
|
ALTER TABLE evttrig.one DROP CONSTRAINT one_pkey;
|
|
ALTER TABLE evttrig.one DROP COLUMN col_c;
|
|
ALTER TABLE evttrig.id ALTER COLUMN col_d SET DATA TYPE bigint;
|
|
ALTER TABLE evttrig.id ALTER COLUMN col_d DROP IDENTITY,
|
|
ALTER COLUMN col_d SET DATA TYPE int;
|
|
DROP INDEX evttrig.one_idx;
|
|
DROP SCHEMA evttrig CASCADE;
|
|
DROP TABLE a_temp_tbl;
|
|
|
|
-- CREATE OPERATOR CLASS without FAMILY clause should report
|
|
-- both CREATE OPERATOR FAMILY and CREATE OPERATOR CLASS
|
|
CREATE OPERATOR CLASS evttrigopclass FOR TYPE int USING btree AS STORAGE int;
|
|
|
|
DROP EVENT TRIGGER regress_event_trigger_report_dropped;
|
|
DROP EVENT TRIGGER regress_event_trigger_report_end;
|
|
|
|
-- only allowed from within an event trigger function, should fail
|
|
select pg_event_trigger_table_rewrite_oid();
|
|
|
|
-- test Table Rewrite Event Trigger
|
|
CREATE OR REPLACE FUNCTION test_evtrig_no_rewrite() RETURNS event_trigger
|
|
LANGUAGE plpgsql AS $$
|
|
BEGIN
|
|
RAISE EXCEPTION 'rewrites not allowed';
|
|
END;
|
|
$$;
|
|
|
|
create event trigger no_rewrite_allowed on table_rewrite
|
|
execute procedure test_evtrig_no_rewrite();
|
|
|
|
create table rewriteme (id serial primary key, foo float, bar timestamptz);
|
|
insert into rewriteme
|
|
select x * 1.001 from generate_series(1, 500) as t(x);
|
|
alter table rewriteme alter column foo type numeric;
|
|
alter table rewriteme add column baz int default 0;
|
|
|
|
-- test with more than one reason to rewrite a single table
|
|
CREATE OR REPLACE FUNCTION test_evtrig_no_rewrite() RETURNS event_trigger
|
|
LANGUAGE plpgsql AS $$
|
|
BEGIN
|
|
RAISE NOTICE 'Table ''%'' is being rewritten (reason = %)',
|
|
pg_event_trigger_table_rewrite_oid()::regclass,
|
|
pg_event_trigger_table_rewrite_reason();
|
|
END;
|
|
$$;
|
|
|
|
alter table rewriteme
|
|
add column onemore int default 0,
|
|
add column another int default -1,
|
|
alter column foo type numeric(10,4);
|
|
|
|
-- matview rewrite when changing access method
|
|
CREATE MATERIALIZED VIEW heapmv USING heap AS SELECT 1 AS a;
|
|
ALTER MATERIALIZED VIEW heapmv SET ACCESS METHOD heap2;
|
|
DROP MATERIALIZED VIEW heapmv;
|
|
|
|
-- shouldn't trigger a table_rewrite event
|
|
alter table rewriteme alter column foo type numeric(12,4);
|
|
begin;
|
|
set timezone to 'UTC';
|
|
alter table rewriteme alter column bar type timestamp;
|
|
set timezone to '0';
|
|
alter table rewriteme alter column bar type timestamptz;
|
|
set timezone to 'Europe/London';
|
|
alter table rewriteme alter column bar type timestamp; -- does rewrite
|
|
rollback;
|
|
|
|
-- typed tables are rewritten when their type changes. Don't emit table
|
|
-- name, because firing order is not stable.
|
|
CREATE OR REPLACE FUNCTION test_evtrig_no_rewrite() RETURNS event_trigger
|
|
LANGUAGE plpgsql AS $$
|
|
BEGIN
|
|
RAISE NOTICE 'Table is being rewritten (reason = %)',
|
|
pg_event_trigger_table_rewrite_reason();
|
|
END;
|
|
$$;
|
|
|
|
create type rewritetype as (a int);
|
|
create table rewritemetoo1 of rewritetype;
|
|
create table rewritemetoo2 of rewritetype;
|
|
alter type rewritetype alter attribute a type text cascade;
|
|
|
|
-- but this doesn't work
|
|
create table rewritemetoo3 (a rewritetype);
|
|
alter type rewritetype alter attribute a type varchar cascade;
|
|
|
|
drop table rewriteme;
|
|
drop event trigger no_rewrite_allowed;
|
|
drop function test_evtrig_no_rewrite();
|
|
|
|
-- test Row Security Event Trigger
|
|
RESET SESSION AUTHORIZATION;
|
|
CREATE TABLE event_trigger_test (a integer, b text);
|
|
|
|
CREATE OR REPLACE FUNCTION start_command()
|
|
RETURNS event_trigger AS $$
|
|
BEGIN
|
|
RAISE NOTICE '% - ddl_command_start', tg_tag;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
CREATE OR REPLACE FUNCTION end_command()
|
|
RETURNS event_trigger AS $$
|
|
BEGIN
|
|
RAISE NOTICE '% - ddl_command_end', tg_tag;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
CREATE OR REPLACE FUNCTION drop_sql_command()
|
|
RETURNS event_trigger AS $$
|
|
BEGIN
|
|
RAISE NOTICE '% - sql_drop', tg_tag;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
CREATE EVENT TRIGGER start_rls_command ON ddl_command_start
|
|
WHEN TAG IN ('CREATE POLICY', 'ALTER POLICY', 'DROP POLICY') EXECUTE PROCEDURE start_command();
|
|
|
|
CREATE EVENT TRIGGER end_rls_command ON ddl_command_end
|
|
WHEN TAG IN ('CREATE POLICY', 'ALTER POLICY', 'DROP POLICY') EXECUTE PROCEDURE end_command();
|
|
|
|
CREATE EVENT TRIGGER sql_drop_command ON sql_drop
|
|
WHEN TAG IN ('DROP POLICY') EXECUTE PROCEDURE drop_sql_command();
|
|
|
|
CREATE POLICY p1 ON event_trigger_test USING (FALSE);
|
|
ALTER POLICY p1 ON event_trigger_test USING (TRUE);
|
|
ALTER POLICY p1 ON event_trigger_test RENAME TO p2;
|
|
DROP POLICY p2 ON event_trigger_test;
|
|
|
|
-- Check the object addresses of all the event triggers.
|
|
SELECT
|
|
e.evtname,
|
|
pg_describe_object('pg_event_trigger'::regclass, e.oid, 0) as descr,
|
|
b.type, b.object_names, b.object_args,
|
|
pg_identify_object(a.classid, a.objid, a.objsubid) as ident
|
|
FROM pg_event_trigger as e,
|
|
LATERAL pg_identify_object_as_address('pg_event_trigger'::regclass, e.oid, 0) as b,
|
|
LATERAL pg_get_object_address(b.type, b.object_names, b.object_args) as a
|
|
ORDER BY e.evtname;
|
|
|
|
DROP EVENT TRIGGER start_rls_command;
|
|
DROP EVENT TRIGGER end_rls_command;
|
|
DROP EVENT TRIGGER sql_drop_command;
|