sigmod commented on code in PR #32298:
URL: https://github.com/apache/spark/pull/32298#discussion_r844050894
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala:
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@@ -615,4 +603,23 @@ object QueryPlan extends PredicateHelper {
case e: AnalysisException => append(e.toString)
}
}
+
+ /**
+ * Extracts expressions from an object.
+ */
+ def extractExpressions(o: Any): Seq[Expression] = {
Review Comment:
Ack.
See my next comment:
https://github.com/apache/spark/pull/32298#discussion_r843738869. I was
thinking that if we use explicit pattern matchings of node types, maybe we
don't need to expose it?
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