allisonwang-db commented on a change in pull request #32787:
URL: https://github.com/apache/spark/pull/32787#discussion_r652363922
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File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/ResolveSubquerySuite.scala
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@@ -177,4 +178,61 @@ class ResolveSubquerySuite extends AnalysisTest {
condition = Some(sum('a) === sum('c)))
assertAnalysisError(plan, Seq("Invalid expressions: [sum(a), sum(c)]"))
}
+
+ test("SPARK-35618: lateral join with star expansion") {
Review comment:
@maropu I looked into how regex expressions are resolved and the logic
is actually different from star expressions. It won't throw exceptions when
there is no match. Instead, it returns an empty sequence. So we can't tell if
the regex expression is resolved by the current plan with an empty output, or
it can't be resolved.
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