ClickHouse/tests/performance/float_parsing.xml

<test>
    <substitutions>
       <substitution>
           <name>expr</name>
           <values>
               <value>toString(number)</value>
               <value>toString(number % 10)</value>
           </values>
       </substitution>
        <substitution>
            <name>expr_zero</name>
            <values>
                <value>toString(1 / rand())</value>
                <value>toString(rand() / 0xFFFFFFFF)</value>
                <value>toString(0xFFFFFFFF / rand())</value>
                <value>toString(rand())</value>
                <value>toString(rand64())</value>
                <value>concat(toString(rand(1)), '.', toString(rand(2)))</value>
                <value>concat(toString(rand(1)), 'e', toString(rand(2) % 100))</value>
                <value>concat(toString(rand64(1)), toString(rand64(2)), toString(rand64(3)))</value>
            </values>
        </substitution>
    </substitutions>

    <query>SELECT count() FROM numbers(1000000) WHERE NOT ignore(toFloat64({expr}))</query>
    <query>SELECT count() FROM zeros(1000000) WHERE NOT ignore(toFloat64({expr_zero}))</query>
</test>