presto-tpch/src/main/java/io/prestosql/plugin/tpch/statistics/ColumnStatisticsData.java/ColumnStatisticsData/zero
class ColumnStatisticsData:    public static ColumnStatisticsData zero()
    {
        return new ColumnStatisticsData(Optional.of(0L), Optional.empty(), Optional.empty(), Optional.of(0L));
    }