presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/metadata/ColumnStats.java/ColumnStats/toString
class ColumnStats:    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("columnId", columnId)
                .add("min", min)
                .add("max", max)
                .omitNullValues()
                .toString();
    }