if !ok {
			return nil, fmt.Errorf("fakedb: table %q doesn't exist", s.table)
		}

		if s.table == "magicquery" {
			if len(s.whereCol) == 2 && s.whereCol[0].Column == "op" && s.whereCol[1].Column == "millis" {
				if args[0].Value == "sleep" {
					time.Sleep(time.Duration(args[1].Value.(int64)) * time.Millisecond)
				}
			}
		}
		if s.table == "tx_status" && s.colName[0] == "tx_status" {