Gschiavon edited a comment on issue #25728: [SPARK-29020][WIP][SQL] Improving array_sort behaviour URL: https://github.com/apache/spark/pull/25728#issuecomment-536013344 @kiszk , @ueshinThis is my problem while making tests for the new signature. I want to test `case class ArraySort(argument: Expression, function: Expression)` And I don't know how to pass the comparator function parameter without registering the UDF, like for example: `val func: (Expression, Expression) => Expression = (x, y) => if(x > y) 1 else ...`
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