Method serializeBinaryBulk

src/DataTypes/Serializations/SerializationString.cpp:136–165

void SerializationString::serializeBinaryBulk(const IColumn & column, WriteBuffer & ostr, size_t offset, size_t limit) const
{
    const ColumnString & column_string = typeid_cast<const ColumnString &>(column);
    const ColumnString::Chars & data = column_string.getChars();
    const ColumnString::Offsets & offsets = column_string.getOffsets();

    size_t size = column.size();
    if (!size)
        return;

    size_t end = limit && offset + limit < size
        ? offset + limit
        : size;

    if (offset == 0)
    {
        UInt64 str_size = offsets[0] - 1;
        writeVarUInt(str_size, ostr);
        ostr.write(reinterpret_cast<const char *>(data.data()), str_size);

        ++offset;
    }

    for (size_t i = offset; i < end; ++i)
    {
        UInt64 str_size = offsets[i] - offsets[i - 1] - 1;
        writeVarUInt(str_size, ostr);
        ostr.write(reinterpret_cast<const char *>(&data[offsets[i - 1]]), str_size);
    }
}


template <int UNROLL_TIMES>