new_contents: class probe_tables_stats(PgProbe):
      level = 'db'
      min_version = 803
      max_version = None
      sql = """SELECT date_trunc('seconds', current_timestamp) as datetime,
        schemaname, relname, seq_scan, seq_tup_read, idx_scan, idx_tup_fetch,
        n_tup_ins, n_tup_upd, n_tup_del, n_tup_hot_upd, n_live_tup, n_dead_tup,
        last_vacuum, last_autovacuum, last_analyze, last_autoanalyze
      FROM pg_stat_user_tables"""
  
subject: add probe tables_stats