Method describeActions

src/Processors/QueryPlan/WindowStep.cpp:89–125

}

void WindowStep::describeActions(FormatSettings & settings) const
{
    const String & prefix = settings.detail_prefix;
    settings.out << prefix << "Window: (";
    if (!window_description.partition_by.empty())
    {
        settings.out << "PARTITION BY ";
        for (size_t i = 0; i < window_description.partition_by.size(); ++i)
        {
            if (i > 0)
            {
                settings.out << ", ";
            }
            const auto & column_name = window_description.partition_by[i].column_name;
            settings.out << (settings.pretty ? QueryPlanFormat::formatColumnPretty(column_name, settings.pretty_names) : column_name);
        }
    }
    if (!window_description.partition_by.empty()
        && !window_description.order_by.empty())
    {
        settings.out << " ";
    }
    if (!window_description.order_by.empty())
    {
        settings.out << "ORDER BY ";
        dumpSortDescription(window_description.order_by, settings);
    }
    settings.out << ")\n";

    for (size_t i = 0; i < window_functions.size(); ++i)
    {
        settings.out << prefix << (i == 0 ? "Functions: "
                                          : "           ");
        const auto & column_name = window_functions[i].column_name;
        settings.out << (settings.pretty ? QueryPlanFormat::formatColumnPretty(column_name, settings.pretty_names) : column_name) << "\n";
    }
}

void WindowStep::describeActions(JSONBuilder::JSONMap & map) const
{