日期
SELECT now() as now_with_timezone
, localtimestamp::date + interval '1s' as local_time_without_timezone
, current_date + interval '1m' as current_date_without_timezone
, date_trunc('day', now()) as truncate_time //00:00:00
, now()::date + interval '1d' - interval '1ms' as today_lastmonent //23:59:59