Method createColumn

src/Storages/StorageFuzzJSON.cpp:512–539

};

ColumnPtr FuzzJSONSource::createColumn()
{
    auto column = ColumnString::create();
    ColumnString::Chars & data_to = column->getChars();
    ColumnString::Offsets & offsets_to = column->getOffsets();

    offsets_to.resize(block_size);
    IColumn::Offset offset = 0;

    for (size_t row_num = 0; row_num < block_size; ++row_num)
    {
        WriteBufferFromOwnString out;
        fuzzJSONObject(json_root, out, config, rnd);

        auto data = out.str();
        size_t data_len = data.size();

        IColumn::Offset next_offset = offset + data_len;
        data_to.resize(next_offset);

        std::copy(data.begin(), data.end(), &data_to[offset]);

        offsets_to[row_num] = next_offset;
        offset = next_offset;
    }

    return column;
}

}