{
  safe: (val) => (val != null ? '' + val : ''),
  format_column: (c) => (c.column_name != null ? c.column_name : '?') + ' (' + (c.data_type != null ? c.data_type : '?') + ')' + (c.comment != null ? (' -- ' + c.comment) : ''),
  format_table: (t) => (t.table_schema != null ? (t.table_schema + '.') : '') + (t.table_name != null ? t.table_name : '?') + (t.table_type != null ? (' [' + t.table_type + ']') : ''),
  format_job_result: (r) => 'Task: ' + (r.task_name != null ? r.task_name : '?') + ' Status: ' + (r.result_state != null ? r.result_state : '?')
}
