Method hasDynamicSubcolumns

src/DataTypes/IDataType.cpp:249–262

}

bool IDataType::hasDynamicSubcolumns() const
{
    if (hasDynamicSubcolumnsData())
        return true;

    bool has_dynamic_subcolumns = false;
    auto data = SubstreamData(getDefaultSerialization()).withType(getPtr());
    auto callback = [&](const SubstreamPath &, const String &, const SubstreamData & subcolumn_data)
    {
        has_dynamic_subcolumns |= subcolumn_data.type && subcolumn_data.type->hasDynamicSubcolumnsData();
    };
    forEachSubcolumn(callback, data);
    return has_dynamic_subcolumns;
}

DataTypePtr IDataType::tryGetSubcolumnType(std::string_view subcolumn_name) const
{