Method registerDataType

src/DataTypes/DataTypeFactory.cpp:177–198

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

    String family_name_lowercase = Poco::toLower(family_name);

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

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


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

void DataTypeFactory::registerSimpleDataType(const String & name, SimpleCreator creator, CaseSensitiveness case_sensitiveness)
{