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9 lines
555 B
MySQL
9 lines
555 B
MySQL
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SELECT emptyArrayToSingle(arrayFilter(x -> x != 99, arrayJoin([[1, 2], [99], [4, 5, 6]])));
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SELECT emptyArrayToSingle(emptyArrayString()), emptyArrayToSingle(emptyArrayDate()), emptyArrayToSingle(emptyArrayDateTime());
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SELECT
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emptyArrayToSingle(range(number % 3)),
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emptyArrayToSingle(arrayMap(x -> toString(x), range(number % 2))),
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emptyArrayToSingle(arrayMap(x -> toDateTime('2015-01-01 00:00:00') + x, range(number % 5))),
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emptyArrayToSingle(arrayMap(x -> toDate('2015-01-01') + x, range(number % 4))) FROM system.numbers LIMIT 10;
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