PostgreSQL trigger not firing. Can you see anything wrong? - postgresql

Question

Wrote this trigger 5-6 months ago, and it ran fine on the db I deployed it to. Just took it off the shelf, and pretty much dropped it on the same database which lives on a different box. Sucker isn't executing anymore.
Essentially, this trigger just copies the "before" row to an audit table. The audit table lives in a different db on the same server, and I link it back to the source database as a FOREIGN Table:
Audit db:
CREATE TABLE next_gen_permissions_change
(
id serial NOT NULL,
authorizable_type character varying(64),
authorizable_id integer,
grantee_id integer,
grantee_type character varying(255),
capability_id integer NOT NULL,
permission integer DEFAULT 0,
event_time timestamp without time zone,
event_type character varying(10)
)
GRANT ALL ON TABLE next_gen_permissions_change TO foo;
I create the foreign table in the "source" database:
CREATE EXTENSION postgres_fdw;
CREATE SERVER myserver FOREIGN DATA WRAPPER postgres_fdw OPTIONS (host 'localhost', dbname 'audit', port '5432');
CREATE USER MAPPING FOR foo SERVER myserver OPTIONS (user 'foo', password 'secret');
CREATE foreign TABLE next_gen_permissions_change
(
id serial NOT NULL,
authorizable_type character varying(64),
authorizable_id integer,
grantee_id integer,
grantee_type character varying(255),
capability_id integer NOT NULL,
permission integer DEFAULT 0,
event_time timestamp without time zone,
event_type character varying(10))
SERVER myserver;
GRANT ALL ON TABLE next_gen_permissions_change TO foo;
When I INSERT rows into source.next_gen_permissions_change, I see them show up in audit.next_gen_permissions_change...so I got that going for me.
Here's the function:
CREATE OR REPLACE FUNCTION audit_permissions()
RETURNS trigger AS
$BODY$
DECLARE
trigger_event_time timestamp;
BEGIN
trigger_event_time := now();
IF (TG_OP = 'INSERT') THEN
INSERT INTO next_gen_permissions_change(
id,
authorizable_type,
authorizable_id,
grantee_id,
grantee_type,
capability_id,
permission,
event_time,
event_type)
VALUES (NEW.id,
NEW.authorizable_type,
NEW.authorizable_id,
NEW.grantee_id,
NEW.grantee_type,
NEW.capability_id,
NEW.permission,
trigger_event_time,
'insert');
RETURN NEW;
ELSIF (TG_OP = 'DELETE') THEN
INSERT INTO next_gen_permissions_change(
id,
authorizable_type,
authorizable_id,
grantee_id,
grantee_type,
capability_id,
permission,
event_time,
event_type)
VALUES (OLD.id,
OLD.authorizable_type,
OLD.authorizable_id,
OLD.grantee_id,
OLD.grantee_type,
OLD.capability_id,
OLD.permission,
trigger_event_time,
'delete');
RETURN OLD;
END IF;
RETURN null;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
And now, I'm adding the function as a trigger:
CREATE TRIGGER next_gen_permissions_audit
AFTER INSERT OR DELETE
ON next_gen_permissions
FOR EACH ROW
EXECUTE PROCEDURE audit_permissions();
No errors, all seems well:
As you can see, I added RAISE NOTICE as well, so I could hopefully see this sucker executing in pgadmin.
Here are all of the properties of the trigger (parent window) and function (child window embedded inside the parent):
WHEN executing something like
UPDATE next_gen_permissions SET f1=f1
...I don't see anything in the messages.
Also,
EXPLAIN ANALYZE UPDATE next_gen_permissions SET f1=f1
doesn't return anything interesting:
Can anyone see what I'm doing wrong here? I'm not getting any error messages, and when I look at the logs, the UPDATE goes right through without ANY mention that the trigger is getting fired.
Thanks much.