ClickHouse/tests/queries/0_stateless/90001_array_fold.sql

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2021-03-14 09:49:46 +00:00
SELECT arrayFold(x,acc -> acc + x * 2, [1,2,3,4], toInt64(3));
SELECT arrayFold(x,acc -> acc + x * 2, emptyArrayInt64(), toInt64(3));
SELECT arrayFold(x,acc -> arrayPushBack(acc,x), [1,2,3,4], emptyArrayInt64());
SELECT arrayFold(x,acc -> arrayPushFront(acc,x), [1,2,3,4], emptyArrayInt64());
SELECT arrayFold(x,acc -> (arrayPushFront(acc.1,x), arrayPushBack(acc.2,x)), [1,2,3,4], (emptyArrayInt64(), emptyArrayInt64()));
SELECT arrayFold(x,acc -> x % 2 ? (arrayPushBack(acc.1,x), acc.2): (acc.1, arrayPushBack(acc.2,x)), [1,2,3,4,5,6], (emptyArrayInt64(), emptyArrayInt64()));