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15 lines
629 B
SQL
15 lines
629 B
SQL
DROP TABLE IF EXISTS t_sparse_intersect;
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CREATE TABLE t_sparse_intersect (a UInt64, c Int64) ENGINE = MergeTree
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ORDER BY tuple() SETTINGS ratio_of_defaults_for_sparse_serialization = 0.8;
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SYSTEM STOP MERGES t_sparse_intersect;
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INSERT INTO t_sparse_intersect SELECT if (number % 10 = 0, number, 0), number FROM numbers(1000);
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INSERT INTO t_sparse_intersect SELECT number, number FROM numbers(1000);
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SELECT count() FROM (SELECT * FROM t_sparse_intersect EXCEPT SELECT * FROM t_sparse_intersect);
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SELECT count() FROM (SELECT * FROM t_sparse_intersect INTERSECT SELECT * FROM t_sparse_intersect);
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DROP TABLE t_sparse_intersect;
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