Method keyPartToFieldName

src/QLContext.h:202–208

	}

	std::string keyPartToFieldName(StringRef kp) {
		DataValue dv = DataValue::decode_key_part(kp);
		if (dv.getSortType() == DVTypeCode::NUMBER)
			return std::to_string(dv.getInt());
		else
			return dv.getString();
	}

	void bson_getDescendants(StringRef prefix,
	                         StringRef begin,