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14 lines
638 B
SQL
14 lines
638 B
SQL
DROP TABLE IF EXISTS nested;
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CREATE TABLE nested (x UInt64, filter UInt8, n Nested(a UInt64)) ENGINE = MergeTree ORDER BY x SETTINGS index_granularity = 8192, index_granularity_bytes = '10Mi';
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INSERT INTO nested SELECT number, number % 2, range(number % 10) FROM system.numbers LIMIT 100000;
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ALTER TABLE nested ADD COLUMN n.b Array(UInt64);
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SELECT DISTINCT n.b FROM nested PREWHERE filter ORDER BY ALL;
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ALTER TABLE nested ADD COLUMN n.c Array(UInt64) DEFAULT arrayMap(x -> x * 2, n.a);
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SELECT DISTINCT n.c FROM nested PREWHERE filter ORDER BY ALL;
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SELECT DISTINCT n.a, n.c FROM nested PREWHERE filter ORDER BY ALL;
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DROP TABLE nested;
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