Xiao Li created SPARK-23932:
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Summary: High-order function: zip_with(array<T>, array<U>,
function<T, U, R>) → array<R>
Key: SPARK-23932
URL: https://issues.apache.org/jira/browse/SPARK-23932
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 2.3.0
Reporter: Xiao Li
Ref: https://prestodb.io/docs/current/functions/array.html
Merges the two given arrays, element-wise, into a single array using function.
Both arrays must be the same length.
{noformat}
SELECT zip_with(ARRAY[1, 3, 5], ARRAY['a', 'b', 'c'], (x, y) -> (y, x)); --
[ROW('a', 1), ROW('b', 3), ROW('c', 5)]
SELECT zip_with(ARRAY[1, 2], ARRAY[3, 4], (x, y) -> x + y); -- [4, 6]
SELECT zip_with(ARRAY['a', 'b', 'c'], ARRAY['d', 'e', 'f'], (x, y) -> concat(x,
y)); -- ['ad', 'be', 'cf']
{noformat}
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