ClickHouse/tests/performance/rand.xml

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<test>
<substitutions>
<substitution>
<name>table</name>
<values>
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<value>zeros(1000000000)</value>
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</values>
</substitution>
</substitutions>
<query>SELECT count() FROM (SELECT rand() FROM zeros(1000000000)) </query>
<query>SELECT count() FROM (SELECT rand64() FROM zeros(1000000000)) </query>
<query>SELECT count() FROM (SELECT randUniform(0, 1) FROM zeros(100000000)) </query>
<query>SELECT count() FROM (SELECT generateUUIDv4() FROM zeros( 100000000)) </query>
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</test>