ClickHouse/tests/integration/test_dictionary_custom_settings/configs/dictionaries/ExecutableSourceConfig.xml

<clickhouse>
    <dictionary>
        <name>test_executable</name>
        
        <source>
            <executable>
		<command>cat /etc/clickhouse-server/dictionaries/source.csv</command>
            	<format>CSVWithNames</format>
            </executable>

            <settings>
                <format_csv_allow_single_quotes>0</format_csv_allow_single_quotes>
                <format_csv_allow_double_quotes>0</format_csv_allow_double_quotes>
            </settings>

        </source>

        <lifetime>600</lifetime>

        <layout>
            <flat/>
        </layout>

        <structure>
            <id>
                <name>id</name>
            </id>
            <attribute>
                <name>first</name>
                <type>String</type>
                <null_value></null_value>
            </attribute>
            <attribute>
                <name>second</name>
                <type>String</type>
                <null_value></null_value>
            </attribute>
            <attribute>
                <name>third</name>
                <type>String</type>
                <null_value></null_value>
            </attribute>
        </structure>
    </dictionary>
</clickhouse>