AngersZhuuuu commented on issue #25028: [SPARK-28227][SQL] Support TRANSFORM with aggregation. URL: https://github.com/apache/spark/pull/25028#issuecomment-548675869 > Another test query: > > ``` > SELECT TRANSFORM(key, abs(key)) > USING 'cat' > FROM (SELECT DISTINCT key FROM src); > ``` > > The physical plan looks different with this PR applied. in particular, HashAggregate gets another output column, while it should be just one: > > `HashAggregate(keys=[key#18], functions=[], output=[key#18, **another_output**]) ` Since we can solve every thing with path a `Seq(UnresolvedStar(None))` to` ScriptTrasnform`
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