Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/10373#discussion_r48075542
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
---
@@ -1155,4 +1155,54 @@ class DataFrameSuite extends QueryTest with
SharedSQLContext {
val primitiveUDF = udf((i: Int) => i * 2)
checkAnswer(df.select(primitiveUDF($"age")), Row(44) :: Row(null) ::
Nil)
}
+
+ test("SPARK-12398 truncated toString") {
+ val df1 = Seq((1: Long, "row1": String)).toDF("id", "name")
--- End diff --
Nit: you don't really need the type ascriptions here. You can just do `1L`
if you want it to be a long.
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