Method insertIntoSharedData

src/Formats/JSONExtractTree.cpp:2214–2313

    }

    bool insertIntoSharedData(WriteBuffer & buf, const typename JSONParser::Element & element, const JSONExtractInsertSettings & insert_settings, const FormatSettings & format_settings, String & error, MutableColumnPtr & tmp_dynamic_column) const
    {
        /// Fast track where we process simple data types explicitly and serialize them into
        /// shared data without inserting value into Dynamic column with subsequent binary serialization.
        switch (element.type())
        {
            case ElementType::BOOL:
            {
                encodeDataType(getDataTypesCache().getType("Bool"), buf);
                writeBinary(element.getBool(), buf);
                return true;
            }
            case ElementType::INT64:
            {
                encodeDataType(getDataTypesCache().getType("Int64"), buf);
                writeBinaryLittleEndian(element.getInt64(), buf);
                return true;
            }
            case ElementType::UINT64:
            {
                encodeDataType(getDataTypesCache().getType("UInt64"), buf);
                writeBinaryLittleEndian(element.getUInt64(), buf);
                return true;
            }
            case ElementType::DOUBLE:
            {
                encodeDataType(getDataTypesCache().getType("Float64"), buf);
                writeBinaryLittleEndian(element.getDouble(), buf);
                return true;
            }
            case ElementType::STRING:
            {
                std::string_view data = element.getString();

                if (!format_settings.try_infer_dates && !format_settings.try_infer_datetimes)
                {
                    encodeDataType(getDataTypesCache().getType("String"), buf);
                    writeStringBinary(data, buf);
                    return true;
                }

                if (format_settings.try_infer_dates)
                {
                    DayNum date;
                    if (tryInferDateFromString(data, date))
                    {
                        encodeDataType(getDataTypesCache().getType("Date"), buf);
                        writeBinaryLittleEndian(static_cast<UInt16>(date), buf);
                        return true;
                    }
                }

                if (format_settings.try_infer_datetimes && !format_settings.try_infer_datetimes_only_datetime64)
                {
                    time_t value = 0;
                    if (tryInferDateTimeFromString(data, value, format_settings, time_zone_for_schema_inference, utc_time_zone_for_schema_inference))
                    {
                        encodeDataType(getDataTypesCache().getType("DateTime"), buf);