Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5818#discussion_r29470289
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
---
@@ -499,6 +499,14 @@ class DataFrameSuite extends QueryTest {
Row(2) :: Row(3) :: Row(4) :: Nil)
}
+ test("drop column using drop") {
+ val df = testData.drop("key")
+ checkAnswer(
+ df,
+ testData.collect().map(x => Row(x.getString(1))).toSeq)
+ assert(df.schema.map(_.name) === Seq("value"))
--- End diff --
also add a small test for dropping a non-existent column
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