HyukjinKwon commented on a change in pull request #31132:
URL: https://github.com/apache/spark/pull/31132#discussion_r555075996
##########
File path: sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala
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@@ -1982,6 +1982,13 @@ class DatasetSuite extends QueryTest
assert(timezone == "Asia/Shanghai")
}
}
+
+ test("SPARK-34072: Fix empty array failed in functions.lit()") {
+ checkAnswer(
+ spark.range(1).select(lit(Array())),
Review comment:
Can't you create an array such as:
```scala
scala> lit(Array.empty[Int])
res0: org.apache.spark.sql.Column = []
```
? Matching `java.lang.Object` to `NullType` is counterintuative.
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