ClickHouse/tests/performance/uniq.xml

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<test max_ignored_relative_change="0.9">
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<preconditions>
<table_exists>hits_100m_single</table_exists>
<ram_size>30000000000</ram_size>
</preconditions>
<settings>
<max_memory_usage>30000000000</max_memory_usage>
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</settings>
<substitutions>
<substitution>
<name>key</name>
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<values>
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<!--
1 as a key doesn't make much sense - the queries are either
too long in case of uniqExact or too short in case of limited
uniq, so the result is drowned by the noise.
<value>1</value>
-->
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<value>SearchEngineID</value>
<value>RegionID</value>
<value>SearchPhrase</value>
<value>ClientIP</value>
</values>
</substitution>
<substitution>
<name>func</name>
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<values>
<value>sum</value>
<value>uniq</value>
<value>uniqExact</value>
<value>uniqHLL12</value>
<value>uniqCombined(12)</value>
<value>uniqCombined(13)</value>
<value>uniqCombined(14)</value>
<value>uniqCombined(15)</value>
<value>uniqCombined(16)</value>
<value>uniqCombined(17)</value>
<value>uniqCombined(18)</value>
<value>uniqUpTo(3)</value>
<value>uniqUpTo(5)</value>
<value>uniqUpTo(10)</value>
<value>uniqUpTo(25)</value>
<value>uniqUpTo(100)</value>
</values>
</substitution>
</substitutions>
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<query>SELECT {key} AS k, {func}(UserID) FROM hits_100m_single GROUP BY k FORMAT Null</query>
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</test>