ClickHouse/dbms/tests/performance/uniq.xml

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<test>
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<type>loop</type>
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<preconditions>
<table_exists>hits_100m_single</table_exists>
<ram_size>30000000000</ram_size>
</preconditions>
<stop_conditions>
<any_of>
<min_time_not_changing_for_ms>5000</min_time_not_changing_for_ms>
<total_time_ms>20000</total_time_ms>
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</any_of>
</stop_conditions>
<settings>
<max_memory_usage>30000000000</max_memory_usage>
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</settings>
<substitutions>
<substitution>
<name>key</name>
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<values>
<value>1</value>
<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>