Method getSubcolumnType

src/DataTypes/IDataType.cpp:173–180

}

DataTypePtr IDataType::getSubcolumnType(const String & subcolumn_name) const
{
    if (subcolumn_name == MAIN_SUBCOLUMN_NAME)
        return shared_from_this();

    auto data = SubstreamData(getDefaultSerialization()).withType(getPtr());
    return getForSubcolumn<DataTypePtr>(subcolumn_name, data, &SubstreamData::type, true);
}

ColumnPtr IDataType::tryGetSubcolumn(const String & subcolumn_name, const ColumnPtr & column) const
{