Xapian::ValueRangeProcessor *date_range_processor;
#if HAVE_XAPIAN_FIELD_PROCESSOR
Xapian::FieldProcessor *date_field_processor;
Xapian::ValueRangeProcessor *date_range_processor;
#if HAVE_XAPIAN_FIELD_PROCESSOR
Xapian::FieldProcessor *date_field_processor;