ProbeFilters can be incorrectly disabled due to cardinality agnostic check

HdfsParquetScanner::ScalarColumnReader::InitDataPage

    // Check if we should disable the bitmap filter. We'll do this if the filter
    // is not removing a lot of rows.
    // TODO: how to pick the selectivity?
    if (bitmap_filter_ != NULL && bitmap_filter_rows_processed_ > 10000 &&
        bitmap_filter_rows_rejected_ < bitmap_filter_rows_processed_ * .1) {
      bitmap_filter_ = NULL;
    }