ClickHouse/tests/performance/single_fixed_string_groupby.xml

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<test>
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<create_query>DROP TABLE IF EXISTS perf_lc_fixed_str_groupby</create_query>
<create_query>CREATE TABLE perf_lc_fixed_str_groupby(
a LowCardinality(FixedString(14)),
b LowCardinality(FixedString(14))
) ENGINE MergeTree ORDER BY tuple()
</create_query>
<fill_query>
INSERT INTO perf_lc_fixed_str_groupby SELECT ('number key ' || toString(number % 400)) AS a, ('number key ' || toString(number % 20)) AS b FROM numbers(30000000)
</fill_query>
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<query short="1">SELECT count() FROM perf_lc_fixed_str_groupby GROUP BY a FORMAT Null</query>
<query short="1">SELECT count() FROM perf_lc_fixed_str_groupby GROUP BY b FORMAT Null</query>
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<drop_query>DROP TABLE IF EXISTS perf_lc_fixed_str_groupby</drop_query>
</test>