Method registerDataType

src/DataTypes/DataTypeFactory.cpp:289–308

}

void DataTypeFactory::registerDataType(const String & family_name, Value creator, Case case_sensitiveness, Documentation documentation)
{
    if (creator == nullptr)
        throw Exception(ErrorCodes::LOGICAL_ERROR, "DataTypeFactory: the data type family {} has been provided  a null constructor", family_name);

    String family_name_lowercase = Poco::toLower(family_name);

    if (isAlias(family_name) || isAlias(family_name_lowercase))
        throw Exception(ErrorCodes::LOGICAL_ERROR, "DataTypeFactory: the data type family name '{}' is already registered as alias", family_name);

    if (!data_types.emplace(family_name, creator).second)
        throw Exception(ErrorCodes::LOGICAL_ERROR, "DataTypeFactory: the data type family name '{}' is not unique",
            family_name);

    if (case_sensitiveness == Case::Insensitive
        && !case_insensitive_data_types.emplace(family_name_lowercase, creator).second)
        throw Exception(ErrorCodes::LOGICAL_ERROR, "DataTypeFactory: the case insensitive data type family name '{}' is not unique", family_name);

    data_type_documentations.emplace(family_name, std::move(documentation));
}

void DataTypeFactory::registerSimpleDataType(const String & name, SimpleCreator creator, Case case_sensitiveness, Documentation documentation)
{