ClickHouse/tests/performance/optimize_functions_to_subcolumns.xml

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2024-08-09 11:22:44 +00:00
<test>
<settings>
<max_insert_threads>4</max_insert_threads>
</settings>
<create_query>
CREATE TABLE t_subcolumns (a Array(UInt64), s Nullable(String), m Map(String, UInt64)) ENGINE = MergeTree ORDER BY tuple()
</create_query>
<fill_query>
INSERT INTO t_subcolumns SELECT range(number % 20), toString(number), mapFromArrays(range(number % 20), range(number % 20)) FROM numbers_mt(50000000)
</fill_query>
<fill_query>
OPTIMIZE TABLE t_subcolumns FINAL
</fill_query>
<query>SELECT count() FROM t_subcolumns WHERE NOT ignore(length(a))</query>
<query>SELECT count() FROM t_subcolumns WHERE notEmpty(a)</query>
<query>SELECT count() FROM t_subcolumns WHERE NOT ignore(length(m))</query>
<query>SELECT count() FROM t_subcolumns WHERE notEmpty(m)</query>
<query>SELECT count() FROM t_subcolumns WHERE isNotNull(s)</query>
<query>SELECT count(s) FROM t_subcolumns</query>
<drop_query>DROP TABLE t_subcolumns</drop_query>
</test>