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15 lines
501 B
MySQL
15 lines
501 B
MySQL
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DROP TABLE IF EXISTS t_comp_subcolumns;
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CREATE TABLE t_comp_subcolumns (id UInt32, n Nullable(String), arr Array(Array(UInt32)))
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ENGINE = MergeTree ORDER BY id;
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INSERT INTO t_comp_subcolumns SELECT number, 'a', [range(number % 11), range(number % 13)] FROM numbers(20000);
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SELECT sum(n.null) FROM t_comp_subcolumns;
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SELECT n.null FROM t_comp_subcolumns LIMIT 10000, 5;
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SELECT sum(arr.size0) FROM t_comp_subcolumns;
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SELECT sumArray(arr.size1) FROM t_comp_subcolumns;
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DROP TABLE t_comp_subcolumns;
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