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58 lines
2.3 KiB
XML
58 lines
2.3 KiB
XML
<test>
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<settings>
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<max_memory_usage>30000000000</max_memory_usage>
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<!--
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Because of random distribution of data between threads, the number
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of unique keys per thread might differ. This means that sometimes
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we switch to two-level aggregation, and sometimes we don't, based on
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the "bytes" threshold. Two-level aggregation turns out to be twice
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as fast, because it merges aggregation states in multiple threads.
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Lower the threshold here, to avoid jitter. It is unclear whether it
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would be beneficial to lower the default as well.
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-->
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<group_by_two_level_threshold_bytes>10000000</group_by_two_level_threshold_bytes>
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</settings>
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<substitutions>
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<substitution>
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<name>key</name>
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<values>
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<!--
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1 as a key doesn't make much sense - the queries are either
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too long in case of uniqExact or too short in case of limited
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uniq, so the result is drowned by the noise.
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<value>1</value>
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-->
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<value>SearchEngineID</value>
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<value>RegionID</value>
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<value>SearchPhrase</value>
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<value>ClientIP</value>
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</values>
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</substitution>
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<substitution>
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<name>func</name>
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<values>
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<value>sum</value>
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<value>uniq</value>
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<value>uniqExact</value>
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<value>uniqHLL12</value>
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<value>uniqCombined(12)</value>
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<value>uniqCombined(13)</value>
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<value>uniqCombined(14)</value>
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<value>uniqCombined(15)</value>
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<value>uniqCombined(16)</value>
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<value>uniqCombined(17)</value>
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<value>uniqCombined(18)</value>
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<value>uniqUpTo(3)</value>
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<value>uniqUpTo(5)</value>
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<value>uniqUpTo(10)</value>
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<value>uniqUpTo(25)</value>
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<value>uniqUpTo(100)</value>
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</values>
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</substitution>
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</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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<query>SELECT {key} AS k, uniqTheta(UserID) FROM hits_10m_single GROUP BY k FORMAT Null</query>
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</test>
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