Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/20219#discussion_r160990065 --- Diff: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/ScalaReflectionSuite.scala --- @@ -356,4 +356,13 @@ class ScalaReflectionSuite extends SparkFunSuite { assert(deserializerFor[Int].isInstanceOf[AssertNotNull]) assert(!deserializerFor[String].isInstanceOf[AssertNotNull]) } + + test("SPARK-23025: schemaFor shuold support Null type") { --- End diff -- should?
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