HyukjinKwon commented on issue #25728: [SPARK-29020][SQL] Improving array_sort behaviour URL: https://github.com/apache/spark/pull/25728#issuecomment-530219674 Add a Lambda expression for comparator instead of another column `asc` in array_sort. See `array_sort(array(T), function(T, T, int)) -> array(T)` at https://prestodb.github.io/docs/current/functions/array.html In order to expose it in `functions.scala`, you can refer https://github.com/apache/spark/pull/24232.
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