ClickHouse/tests/integration/test_dictionaries_config_reload/dictionaries/dictionary_config.xml

<dictionaries>
    <dictionary>
        <name>test_dictionary_1</name>

        <structure>
            <id>
                <name>id</name>
                <type>UInt64</type>
            </id>
            <attribute>
                <name>value_1</name>
                <type>String</type>
                <null_value></null_value>
            </attribute>
        </structure>

        <source>
            <clickhouse>
                <table>dictionary_values</table>
            </clickhouse>
        </source>

        <layout>
            <direct/>
        </layout>

    </dictionary>
</dictionaries>