text: SELECT timetable.add_job(
      job_name            => 'notify every minute',
      job_schedule        => '* * * * *',
      job_command         => 'SELECT pg_notify($1, $2)',
      job_parameters      => '[ "TT_CHANNEL", "Ahoj from SQL base task" ]' :: jsonb,
      job_kind            => 'SQL'::timetable.command_kind,
      job_client_name     => NULL,
      job_max_instances   => 1,
      job_live            => TRUE,
      job_self_destruct   => FALSE,
      job_ignore_errors   => TRUE
  ) as chain_id;