Gschiavon commented on issue #25728: [SPARK-29020][WIP][SQL] Improving array_sort behaviour URL: https://github.com/apache/spark/pull/25728#issuecomment-538425396 No problem @kiszk . Hmm I think is a different case. Im trying to do this: ` lazy val comparator: (Expression, Expression) => Expression = (x, y) => { if (x < y) 1 else if (x == y) 0 else -1 } ` and then: ` checkEvaluation(sort(a0, comparator), Seq(1, 2, 3)) ` But I can't compare 2 expressions, and I don't know how to do this part
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