ClickHouse/tests/performance/hashed_dictionary_load_factor.xml

<test>
    <substitutions>
        <substitution>
            <name>layout_suffix</name>
            <values>
                <value>HASHED</value>
                <value>SPARSE_HASHED</value>
            </values>
        </substitution>

        <substitution>
            <name>load_factor</name>
            <values>
                <!-- 0. will be prepended -->
                <value>5</value>
                <value>7</value>
                <value>99</value>
            </values>
        </substitution>
    </substitutions>

    <create_query>
        CREATE TABLE simple_key_dictionary_source_table
        (
            id UInt64,
            value_int UInt16
        ) ENGINE = Memory
    </create_query>

    <create_query>
        CREATE TABLE complex_key_dictionary_source_table
        (
            id UInt64,
            id_key String,
            value_int UInt64
        ) ENGINE = Memory
    </create_query>

    <create_query>
        CREATE DICTIONARY IF NOT EXISTS simple_key_{layout_suffix}_dictionary_l0_{load_factor}
        (
            id UInt64,
            value_int UInt64
        )
        PRIMARY KEY id
        SOURCE(CLICKHOUSE(TABLE 'simple_key_dictionary_source_table'))
        LAYOUT({layout_suffix}(MAX_LOAD_FACTOR 0.{load_factor}))
        LIFETIME(0)
    </create_query>

    <create_query>
        CREATE DICTIONARY IF NOT EXISTS complex_key_{layout_suffix}_dictionary_l0_{load_factor}
        (
            id UInt64,
            id_key String,
            value_int UInt64
        )
        PRIMARY KEY id, id_key
        SOURCE(CLICKHOUSE(TABLE 'complex_key_dictionary_source_table'))
        LAYOUT(COMPLEX_KEY_{layout_suffix}(MAX_LOAD_FACTOR 0.{load_factor}))
        LIFETIME(0)
    </create_query>

    <fill_query>INSERT INTO simple_key_dictionary_source_table SELECT number, number FROM numbers(3_000_000)</fill_query>
    <fill_query>INSERT INTO complex_key_dictionary_source_table SELECT number, toString(number), number FROM numbers(2_000_000)</fill_query>

    <fill_query>SYSTEM RELOAD DICTIONARY simple_key_{layout_suffix}_dictionary_l0_{load_factor}</fill_query>
    <fill_query>SYSTEM RELOAD DICTIONARY complex_key_{layout_suffix}_dictionary_l0_{load_factor}</fill_query>

    <query>SYSTEM RELOAD DICTIONARY simple_key_{layout_suffix}_dictionary_l0_{load_factor}</query>
    <query>SYSTEM RELOAD DICTIONARY complex_key_{layout_suffix}_dictionary_l0_{load_factor}</query>

    <query>
        WITH rand64() % 3_000_000 as key
        SELECT dictHas('default.simple_key_{layout_suffix}_dictionary_l0_{load_factor}', key)
        FROM numbers(3_000_000)
        FORMAT Null
    </query>

    <query>
        WITH (rand64() % 2_000_000, toString(rand64() % 2_000_000)) as key
        SELECT dictHas('default.complex_key_{layout_suffix}_dictionary_l0_{load_factor}', key)
        FROM numbers(2_000_000)
        FORMAT Null
    </query>

    <drop_query>DROP DICTIONARY simple_key_{layout_suffix}_dictionary_l0_{load_factor}</drop_query>
    <drop_query>DROP DICTIONARY complex_key_{layout_suffix}_dictionary_l0_{load_factor}</drop_query>

    <drop_query>DROP TABLE simple_key_dictionary_source_table</drop_query>
    <drop_query>DROP TABLE complex_key_dictionary_source_table</drop_query>
</test>