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8 lines
708 B
MySQL
8 lines
708 B
MySQL
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SELECT emptyArrayToSingle(arrayMap(x -> nullIf(x, 2), arrayJoin([emptyArrayUInt8(), [1], [2, 3]]))) AS arr;
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SELECT arr, element FROM (SELECT arrayMap(x -> nullIf(x, 2), arrayJoin([emptyArrayUInt8(), [1], [2, 3]])) AS arr) LEFT ARRAY JOIN arr AS element;
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SELECT emptyArrayToSingle(arr) FROM (SELECT arrayMap(x -> (x, toString(x), x = 1 ? NULL : x), range(number % 3)) AS arr FROM system.numbers LIMIT 10);
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SELECT emptyArrayToSingle(arrayMap(x -> toString(x), arrayMap(x -> nullIf(x, 2), arrayJoin([emptyArrayUInt8(), [1], [2, 3]])))) AS arr;
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SELECT emptyArrayToSingle(arrayMap(x -> toFixedString(toString(x), 3), arrayMap(x -> nullIf(x, 2), arrayJoin([emptyArrayUInt8(), [1], [2, 3], [3, 4, 5]])))) AS arr;
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