ClickHouse/tests/integration/test_distributed_ddl_parallel/configs/dict.xml

<clickhouse>
    <dictionary>
        <name>slow_dict_7</name>
        <source>
           <executable>
               <command>sleep 7</command>
               <format>TabSeparated</format>
           </executable>
        </source>
        <layout>
           <flat/>
        </layout>
        <structure>
           <id>
              <name>id</name>
           </id>
           <attribute>
              <name>value</name>
              <type>String</type>
              <null_value></null_value>
           </attribute>
        </structure>
        <lifetime>0</lifetime>
    </dictionary>

    <dictionary>
        <name>slow_dict_3</name>
        <source>
           <executable>
               <command>sleep 3</command>
               <format>TabSeparated</format>
           </executable>
        </source>
        <layout>
           <flat/>
        </layout>
        <structure>
           <id>
              <name>id</name>
           </id>
           <attribute>
              <name>value</name>
              <type>String</type>
              <null_value></null_value>
           </attribute>
        </structure>
        <lifetime>0</lifetime>
    </dictionary>
</clickhouse>