ClickHouse/tests/performance/single_fixed_string_groupby.xml

<test max_ignored_relative_change="0.2">
    <create_query>DROP TABLE IF EXISTS perf_lc_fixed_str_groupby</create_query>
    <create_query>CREATE TABLE perf_lc_fixed_str_groupby(
            a LowCardinality(FixedString(14)),
            b LowCardinality(FixedString(14))
        ) ENGINE MergeTree ORDER BY tuple()
    </create_query>

    <fill_query>
        INSERT INTO perf_lc_fixed_str_groupby SELECT ('number key ' || toString(number % 400)) AS a, ('number key ' || toString(number % 20)) AS b FROM numbers(30000000)
    </fill_query>

    <query short="1">SELECT count() FROM perf_lc_fixed_str_groupby GROUP BY a</query>
    <query short="1">SELECT count() FROM perf_lc_fixed_str_groupby GROUP BY b</query>

    <drop_query>DROP TABLE IF EXISTS perf_lc_fixed_str_groupby</drop_query>
</test>