maropu commented on a change in pull request #27749: [SPARK-30997][SQL] An
analysis failure in generators with aggregate functions
URL: https://github.com/apache/spark/pull/27749#discussion_r386076423
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisErrorSuite.scala
##########
@@ -433,6 +433,13 @@ class AnalysisErrorSuite extends AnalysisTest {
:: Nil
)
+ errorTest(
+ "generator nested in expressions for aggregates",
+ testRelation.select(Explode(CreateArray(min($"a") :: max($"a") :: Nil)) +
1),
+ "Generators are not supported when it's nested in expressions, but got: " +
+ "(explode(array(min(a), max(a))) + 1)" :: Nil
+ )
+
Review comment:
This is not related to this pr though, I added the two tests here to improve
test coverage for
https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala#L2209-L2217.
Please let me know if there are any problems.
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