Wan Kun created SPARK-52014:
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Summary: Support FoldableUnevaluable in HiveGenericUDFEvaluator
Key: SPARK-52014
URL: https://issues.apache.org/jira/browse/SPARK-52014
Project: Spark
Issue Type: Task
Components: SQL
Affects Versions: 4.0.0
Reporter: Wan Kun
FoldableUnevaluable expression will throw exception in HiveGenericUDFEvaluator,
we should skip eval() for them.
{code:java}
// ideally, we don't test the foldable here(but in optimizer), however,
some of the
// Hive UDF / UDAF requires its argument to be constant objectinspector, we
do it eagerly.
case _ if expr.foldable => toInspector(Literal.create(expr.eval(),
expr.dataType))
{code}
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