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15 lines
764 B
MySQL
15 lines
764 B
MySQL
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DROP TABLE IF EXISTS test.sites;
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CREATE TABLE test.sites (Domain String, `Users.UserID` Array(UInt64), `Users.Dates` Array(Array(Date))) ENGINE = MergeTree ORDER BY Domain SETTINGS vertical_merge_algorithm_min_rows_to_activate = 0, vertical_merge_algorithm_min_columns_to_activate = 0;
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SYSTEM STOP MERGES;
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INSERT INTO test.sites VALUES ('yandex.ru',[4773498661529650001],[[]]),('yandex.ru',[1936412071529050001],[[]]);
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INSERT INTO test.sites VALUES ('yandex.ru/video',[4773498661529650001],[['2018-06-22']]);
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SELECT count(), countArray(Users.Dates), countArrayArray(Users.Dates) FROM test.sites;
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SYSTEM START MERGES;
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OPTIMIZE TABLE test.sites FINAL;
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SELECT count(), countArray(Users.Dates), countArrayArray(Users.Dates) FROM test.sites;
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DROP TABLE test.sites;
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