mirror of https://github.com/citusdata/citus.git
400 lines
14 KiB
PL/PgSQL
400 lines
14 KiB
PL/PgSQL
\set VERBOSITY terse
|
|
|
|
SET citus.next_shard_id TO 1507000;
|
|
SET citus.shard_replication_factor TO 1;
|
|
SET citus.enable_local_execution TO ON;
|
|
SET citus.log_local_commands TO ON;
|
|
|
|
CREATE SCHEMA citus_local_table_triggers;
|
|
SET search_path TO citus_local_table_triggers;
|
|
|
|
-- ensure that coordinator is added to pg_dist_node
|
|
SET client_min_messages to ERROR;
|
|
SELECT 1 FROM master_add_node('localhost', :master_port, groupId => 0);
|
|
RESET client_min_messages;
|
|
|
|
CREATE TABLE dummy_reference_table(a int unique, b int);
|
|
INSERT INTO dummy_reference_table SELECT i FROM generate_series(-1, 5) i;
|
|
INSERT INTO dummy_reference_table VALUES (99),(100),(599),(600);
|
|
SELECT create_reference_table('dummy_reference_table');
|
|
|
|
CREATE TABLE citus_local_table (value int);
|
|
ALTER TABLE citus_local_table ADD CONSTRAINT fkey_to_dummy_1 FOREIGN KEY (value) REFERENCES dummy_reference_table(a);
|
|
|
|
--------------------
|
|
-- DELETE trigger --
|
|
--------------------
|
|
|
|
BEGIN;
|
|
CREATE TABLE distributed_table(value int);
|
|
CREATE FUNCTION insert_42() RETURNS trigger AS $insert_42$
|
|
BEGIN
|
|
INSERT INTO distributed_table VALUES (42);
|
|
RETURN NEW;
|
|
END;
|
|
$insert_42$ LANGUAGE plpgsql;
|
|
|
|
SELECT create_distributed_table('distributed_table', 'value');
|
|
|
|
CREATE TRIGGER insert_42_trigger
|
|
AFTER DELETE ON citus_local_table
|
|
FOR EACH ROW EXECUTE FUNCTION insert_42();
|
|
|
|
-- select should print two rows with "42" as delete from citus_local_table will
|
|
-- insert 42 per deleted row
|
|
DELETE FROM citus_local_table;
|
|
SELECT * FROM distributed_table;
|
|
ROLLBACK;
|
|
|
|
----------------------
|
|
-- TRUNCATE trigger --
|
|
----------------------
|
|
|
|
BEGIN;
|
|
CREATE TABLE reference_table(value int);
|
|
SELECT create_reference_table('reference_table');
|
|
CREATE FUNCTION insert_100() RETURNS trigger AS $insert_100$
|
|
BEGIN
|
|
INSERT INTO reference_table VALUES (100);
|
|
RETURN NEW;
|
|
END;
|
|
$insert_100$ LANGUAGE plpgsql;
|
|
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER TRUNCATE ON citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION insert_100();
|
|
|
|
-- As TRUNCATE triggers are executed by utility hook, it's critical to see that they
|
|
-- are executed only for once.
|
|
-- select should print a row with "100" as truncate from citus_local_table will insert 100
|
|
TRUNCATE citus_local_table;
|
|
SELECT * FROM reference_table;
|
|
ROLLBACK;
|
|
|
|
--------------------
|
|
-- INSERT trigger --
|
|
--------------------
|
|
|
|
BEGIN;
|
|
CREATE TABLE local_table(value int);
|
|
CREATE FUNCTION increment_value() RETURNS trigger AS $increment_value$
|
|
BEGIN
|
|
UPDATE local_table SET value=value+1;
|
|
RETURN NEW;
|
|
END;
|
|
$increment_value$ LANGUAGE plpgsql;
|
|
|
|
CREATE TRIGGER increment_value_trigger
|
|
AFTER INSERT ON citus_local_table
|
|
FOR EACH ROW EXECUTE FUNCTION increment_value();
|
|
|
|
-- insert initial data to the table that increment_value_trigger will execute for
|
|
INSERT INTO local_table VALUES (0);
|
|
|
|
-- select should print a row with "2" as insert into citus_local_table will
|
|
-- increment all rows per inserted row
|
|
INSERT INTO citus_local_table VALUES(0), (1);
|
|
SELECT * FROM local_table;
|
|
ROLLBACK;
|
|
|
|
--------------------
|
|
-- UPDATE trigger --
|
|
--------------------
|
|
|
|
BEGIN;
|
|
CREATE FUNCTION error_for_5() RETURNS trigger AS $error_for_5$
|
|
BEGIN
|
|
IF OLD.value = 5 THEN
|
|
RAISE EXCEPTION 'cannot update update for value=5';
|
|
END IF;
|
|
END;
|
|
$error_for_5$ LANGUAGE plpgsql;
|
|
|
|
CREATE TRIGGER error_for_5_trigger
|
|
BEFORE UPDATE OF value ON citus_local_table
|
|
FOR EACH ROW EXECUTE FUNCTION error_for_5();
|
|
|
|
-- below update will error out as trigger raises exception
|
|
INSERT INTO citus_local_table VALUES (5);
|
|
UPDATE citus_local_table SET value=value*2 WHERE value=5;
|
|
ROLLBACK;
|
|
|
|
------------------------------------------------------
|
|
-- Test other trigger commands + weird object names --
|
|
------------------------------------------------------
|
|
|
|
CREATE SCHEMA "interesting!schema";
|
|
|
|
-- below view is a helper to print triggers on both shell relation and
|
|
-- shard relation for "citus_local_table"
|
|
CREATE VIEW citus_local_table_triggers AS
|
|
SELECT tgname, tgrelid::regclass, tgenabled
|
|
FROM pg_trigger
|
|
WHERE tgrelid::regclass::text like '"interesting!schema"."citus_local!_table%"'
|
|
ORDER BY 1, 2;
|
|
|
|
CREATE FUNCTION dummy_function() RETURNS trigger AS $dummy_function$
|
|
BEGIN
|
|
NEW.value := value+1;
|
|
RETURN NEW;
|
|
END;
|
|
$dummy_function$ LANGUAGE plpgsql;
|
|
|
|
BEGIN;
|
|
CREATE TABLE "interesting!schema"."citus_local!_table"(value int);
|
|
|
|
CREATE TRIGGER initial_truncate_trigger
|
|
AFTER TRUNCATE ON "interesting!schema"."citus_local!_table"
|
|
FOR EACH STATEMENT EXECUTE FUNCTION dummy_function();
|
|
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" ADD CONSTRAINT fkey_to_dummy_2 FOREIGN KEY (value) REFERENCES dummy_reference_table(a);
|
|
|
|
-- we shouldn't see truncate trigger on shard relation as we drop it
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
ROLLBACK;
|
|
|
|
CREATE TABLE "interesting!schema"."citus_local!_table"(value int);
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" ADD CONSTRAINT fkey_to_dummy_2 FOREIGN KEY (value) REFERENCES dummy_reference_table(a);
|
|
|
|
CREATE TRIGGER "trigger\'name"
|
|
BEFORE INSERT ON "interesting!schema"."citus_local!_table"
|
|
FOR EACH STATEMENT EXECUTE FUNCTION dummy_function();
|
|
|
|
CREATE EXTENSION seg;
|
|
-- ALTER TRIGGER DEPENDS ON
|
|
ALTER TRIGGER "trigger\'name" ON "interesting!schema"."citus_local!_table" DEPENDS ON EXTENSION seg;
|
|
|
|
BEGIN;
|
|
-- show that triggers on both shell relation and shard relation are not depending on seg
|
|
SELECT tgname FROM pg_depend, pg_trigger, pg_extension
|
|
WHERE deptype = 'x' and classid='pg_trigger'::regclass and
|
|
pg_trigger.oid=pg_depend.objid and extname='seg'
|
|
ORDER BY 1;
|
|
|
|
DROP EXTENSION seg;
|
|
|
|
-- show that dropping extension doesn't drop the triggers automatically
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
ROLLBACK;
|
|
|
|
-- ALTER TRIGGER RENAME
|
|
ALTER TRIGGER "trigger\'name" ON "interesting!schema"."citus_local!_table" RENAME TO "trigger\'name22";
|
|
-- show that triggers on both shell relation and shard relation are renamed
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
-- ALTER TABLE ENABLE REPLICA trigger
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" ENABLE REPLICA TRIGGER "trigger\'name22";
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
-- ALTER TABLE ENABLE ALWAYS trigger
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" ENABLE ALWAYS TRIGGER "trigger\'name22";
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
-- ALTER TABLE DISABLE trigger
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" DISABLE TRIGGER "trigger\'name22";
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
-- ALTER TABLE ENABLE trigger
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" ENABLE TRIGGER "trigger\'name22";
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
CREATE TRIGGER another_trigger
|
|
AFTER DELETE ON "interesting!schema"."citus_local!_table"
|
|
FOR EACH STATEMENT EXECUTE FUNCTION dummy_function();
|
|
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" DISABLE TRIGGER USER;
|
|
-- show that all triggers except the internal ones are disabled
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" ENABLE TRIGGER USER;
|
|
-- show that all triggers except the internal ones are enabled again
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" DISABLE TRIGGER ALL;
|
|
-- show that all triggers including internal triggers are disabled
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" ENABLE TRIGGER ALL;
|
|
-- show that all triggers including internal triggers are enabled again
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
DROP TRIGGER another_trigger ON "interesting!schema"."citus_local!_table";
|
|
DROP TRIGGER "trigger\'name22" ON "interesting!schema"."citus_local!_table";
|
|
-- show that drop trigger works as expected
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
BEGIN;
|
|
CREATE TRIGGER "another_trigger\'name"
|
|
AFTER TRUNCATE ON "interesting!schema"."citus_local!_table"
|
|
FOR EACH STATEMENT EXECUTE FUNCTION dummy_function();
|
|
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" DISABLE TRIGGER "another_trigger\'name";
|
|
-- show that our truncate trigger is disabled ..
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
|
|
ALTER TABLE "interesting!schema"."citus_local!_table" ENABLE TRIGGER ALL;
|
|
-- .. and now it is enabled back
|
|
SELECT * FROM citus_local_table_triggers
|
|
WHERE tgname NOT LIKE 'RI_ConstraintTrigger%';
|
|
ROLLBACK;
|
|
|
|
-- as we create ddl jobs for DROP TRIGGER before standard process utility,
|
|
-- it's important to see that we properly handle non-existing triggers
|
|
-- and relations
|
|
DROP TRIGGER no_such_trigger ON "interesting!schema"."citus_local!_table";
|
|
DROP TRIGGER no_such_trigger ON no_such_relation;
|
|
|
|
---------------------------------------
|
|
-- a complex test case with triggers --
|
|
---------------------------------------
|
|
|
|
-- create test tables and some foreign key relationships between them to see
|
|
-- that triggers are properly handled when ddl cascades to referencing table
|
|
CREATE TABLE another_citus_local_table (value int unique);
|
|
SELECT citus_add_local_table_to_metadata('another_citus_local_table');
|
|
|
|
ALTER TABLE another_citus_local_table ADD CONSTRAINT fkey_self FOREIGN KEY(value) REFERENCES another_citus_local_table(value);
|
|
ALTER TABLE citus_local_table ADD CONSTRAINT fkey_c_to_c FOREIGN KEY(value) REFERENCES another_citus_local_table(value) ON UPDATE CASCADE;
|
|
|
|
CREATE TABLE reference_table(value int);
|
|
SELECT create_reference_table('reference_table');
|
|
|
|
CREATE FUNCTION insert_100() RETURNS trigger AS $insert_100$
|
|
BEGIN
|
|
INSERT INTO reference_table VALUES (100);
|
|
RETURN NEW;
|
|
END;
|
|
$insert_100$ LANGUAGE plpgsql;
|
|
|
|
CREATE TABLE local_table (value int);
|
|
|
|
CREATE FUNCTION insert_100_local() RETURNS trigger AS $insert_100$
|
|
BEGIN
|
|
INSERT INTO local_table VALUES (100);
|
|
RETURN NEW;
|
|
END;
|
|
$insert_100$ LANGUAGE plpgsql;
|
|
|
|
BEGIN;
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER TRUNCATE ON another_citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION insert_100();
|
|
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER TRUNCATE ON citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION insert_100();
|
|
|
|
TRUNCATE another_citus_local_table CASCADE;
|
|
-- we should see two rows with "100"
|
|
SELECT * FROM reference_table;
|
|
ROLLBACK;
|
|
|
|
-- can perform remote execution from a trigger on a Citus local table
|
|
BEGIN;
|
|
-- update should actually update something to test ON UPDATE CASCADE logic
|
|
INSERT INTO another_citus_local_table VALUES (600);
|
|
INSERT INTO citus_local_table VALUES (600);
|
|
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER UPDATE ON another_citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION insert_100();
|
|
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER UPDATE ON citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION insert_100();
|
|
|
|
UPDATE another_citus_local_table SET value=value-1;;
|
|
ROLLBACK;
|
|
|
|
-- can perform regular execution from a trigger on a Citus local table
|
|
BEGIN;
|
|
-- update should actually update something to test ON UPDATE CASCADE logic
|
|
INSERT INTO another_citus_local_table VALUES (600);
|
|
INSERT INTO citus_local_table VALUES (600);
|
|
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER UPDATE ON another_citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION insert_100_local();
|
|
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER UPDATE ON citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION insert_100_local();
|
|
|
|
UPDATE another_citus_local_table SET value=value-1;;
|
|
-- we should see two rows with "100"
|
|
SELECT * FROM local_table;
|
|
ROLLBACK;
|
|
|
|
-- can perform local execution from a trigger on a Citus local table
|
|
BEGIN;
|
|
SELECT citus_add_local_table_to_metadata('local_table');
|
|
|
|
-- update should actually update something to test ON UPDATE CASCADE logic
|
|
INSERT INTO another_citus_local_table VALUES (600);
|
|
INSERT INTO citus_local_table VALUES (600);
|
|
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER UPDATE ON another_citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION insert_100_local();
|
|
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER UPDATE ON citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION insert_100_local();
|
|
|
|
UPDATE another_citus_local_table SET value=value-1;;
|
|
-- we should see two rows with "100"
|
|
SELECT * FROM local_table;
|
|
ROLLBACK;
|
|
|
|
-- test on partitioned citus local tables
|
|
CREATE TABLE par_citus_local_table (val int) PARTITION BY RANGE(val);
|
|
CREATE TABLE par_citus_local_table_1 PARTITION OF par_citus_local_table FOR VALUES FROM (1) TO (10000);
|
|
CREATE TABLE par_another_citus_local_table (val int unique) PARTITION BY RANGE(val);
|
|
CREATE TABLE par_another_citus_local_table_1 PARTITION OF par_another_citus_local_table FOR VALUES FROM (1) TO (10000);
|
|
|
|
ALTER TABLE par_another_citus_local_table ADD CONSTRAINT fkey_self FOREIGN KEY(val) REFERENCES par_another_citus_local_table(val);
|
|
ALTER TABLE par_citus_local_table ADD CONSTRAINT fkey_c_to_c FOREIGN KEY(val) REFERENCES par_another_citus_local_table(val) ON UPDATE CASCADE;
|
|
|
|
SELECT citus_add_local_table_to_metadata('par_another_citus_local_table', cascade_via_foreign_keys=>true);
|
|
|
|
CREATE TABLE par_reference_table(val int);
|
|
SELECT create_reference_table('par_reference_table');
|
|
|
|
CREATE FUNCTION par_insert_100() RETURNS trigger AS $par_insert_100$
|
|
BEGIN
|
|
INSERT INTO par_reference_table VALUES (100);
|
|
RETURN NEW;
|
|
END;
|
|
$par_insert_100$ LANGUAGE plpgsql;
|
|
|
|
BEGIN;
|
|
CREATE TRIGGER par_insert_100_trigger
|
|
AFTER TRUNCATE ON par_another_citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION par_insert_100();
|
|
|
|
CREATE TRIGGER insert_100_trigger
|
|
AFTER TRUNCATE ON par_citus_local_table
|
|
FOR EACH STATEMENT EXECUTE FUNCTION par_insert_100();
|
|
|
|
TRUNCATE par_another_citus_local_table CASCADE;
|
|
-- we should see two rows with "100"
|
|
SELECT * FROM par_reference_table;
|
|
ROLLBACK;
|
|
|
|
-- cleanup at exit
|
|
SET client_min_messages TO ERROR;
|
|
DROP SCHEMA citus_local_table_triggers, "interesting!schema" CASCADE;
|