DO $$

BEGIN
  ALTER TABLE {SCHEMA_NAME}.postjobs ADD COLUMN cron_interval integer;
EXCEPTION
  WHEN duplicate_column THEN RAISE DEBUG 'column {SCHEMA_NAME}.postjobs.cron_interval already exists';
END;

$$;

— define triggers to automatically restart cron jobs ————————

– This method is called whenever a job's status changes. It enqueues a fresh