ClickHouse/tests/performance/parallel_mv.xml

<test>
    <settings>
        <parallel_view_processing>1</parallel_view_processing>
    </settings>

    <create_query>create table main_table (number UInt64) engine = MergeTree order by tuple();</create_query>
    <create_query>create materialized view mv_1 engine = MergeTree order by tuple() as
        select number, toString(number) from main_table where number % 13 != 0;</create_query>
    <create_query>create materialized view mv_2 engine = MergeTree order by tuple() as
        select number, toString(number) from main_table where number % 13 != 1;</create_query>
    <create_query>create materialized view mv_3 engine = MergeTree order by tuple() as
        select number, toString(number) from main_table where number % 13 != 3;</create_query>
    <create_query>create materialized view mv_4 engine = MergeTree order by tuple() as
        select number, toString(number) from main_table where number % 13 != 4;</create_query>

    <fill_query>SYSTEM STOP MERGES main_table</fill_query>
    <fill_query>SYSTEM STOP MERGES mt_1</fill_query>
    <fill_query>SYSTEM STOP MERGES mt_2</fill_query>
    <fill_query>SYSTEM STOP MERGES mt_3</fill_query>
    <fill_query>SYSTEM STOP MERGES mt_4</fill_query>

    <query>insert into main_table select number from numbers(10000000)</query>

    <drop_query>drop table if exists main_table;</drop_query>
    <drop_query>drop table if exists mv_1;</drop_query>
    <drop_query>drop table if exists mv_2;</drop_query>
    <drop_query>drop table if exists mv_3;</drop_query>
    <drop_query>drop table if exists mv_4;</drop_query>
</test>