Kimahriman commented on a change in pull request #32338:
URL: https://github.com/apache/spark/pull/32338#discussion_r619831270
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
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@@ -1686,6 +1686,61 @@ class ColumnExpressionSuite extends QueryTest with
SharedSparkSession {
StructType(Seq(StructField("a", IntegerType, nullable = true))))
}
+ test("SPARK-35213: chained withField operations should have correct schema
for new columns") {
+ val df = spark.createDataFrame(
+ sparkContext.parallelize(Row(null) :: Nil),
+ StructType(Seq(StructField("data", NullType))))
Review comment:
Is it possible to just create an empty dataframe with no columns in
Scala? I mostly operate and python and can just do `spark.createDataFrame([[]])`
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