Vladislav Kuzemchik created SPARK-22472:
-------------------------------------------
Summary: Datasets generate random values for null primitive types
Key: SPARK-22472
URL: https://issues.apache.org/jira/browse/SPARK-22472
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.1.1
Reporter: Vladislav Kuzemchik
Not sure if it ever were reported.
{code}
scala> val s =
sc.parallelize(Seq[Option[Long]](None,Some(1L),Some(5))).toDF("v")
s: org.apache.spark.sql.DataFrame = [v: bigint]
scala> s.show(false)
+----+
|v |
+----+
|null|
|1 |
|5 |
+----+
scala> s.as[Long].map(v => v*2).show(false)
+-----+
|value|
+-----+
|-2 |
|2 |
|10 |
+-----+
scala> s.select($"v"*2).show(false)
+-------+
|(v * 2)|
+-------+
|null |
|2 |
|10 |
+-------+
{code}
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