Merge pull request #16665 from ClickHouse/perf-test-group-by

Add a test for #8772
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alexey-milovidov 2020-11-04 21:15:56 +03:00 committed by GitHub
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<test max_ignored_relative_change="0.2">
<create_query>
CREATE TABLE a
(
d Date,
os String
)
ENGINE = MergeTree
PARTITION BY d
ORDER BY d
</create_query>
<fill_query>insert into a select '2000-01-01', ['aa','bb','cc','dd'][number % 4 + 1] from numbers(100000000)</fill_query>
<fill_query>insert into a select '2000-01-02', ['aa','bb','cc','dd'][number % 4 + 1] from numbers(100000000)</fill_query>
<fill_query>insert into a select '2000-01-03', ['aa','bb','cc','dd'][number % 4 + 1] from numbers(100000000)</fill_query>
<fill_query>insert into a select '2000-01-04', ['aa','bb','cc','dd'][number % 4 + 1] from numbers(100000000)</fill_query>
<fill_query>OPTIMIZE TABLE a FINAL</fill_query>
<query>select d, count() from a group by d</query>
<query>select os, count() from a group by os</query>
<query>select d, os, count() from a group by d, os</query>
<drop_query>drop table if exists a</drop_query>
</test>