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https://issues.apache.org/jira/browse/SPARK-8654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Michael Armbrust resolved SPARK-8654.
-------------------------------------
Resolution: Fixed
Fix Version/s: 1.6.0
Issue resolved by pull request 8983
[https://github.com/apache/spark/pull/8983]
> Analysis exception when using "NULL IN (...)": invalid cast
> -----------------------------------------------------------
>
> Key: SPARK-8654
> URL: https://issues.apache.org/jira/browse/SPARK-8654
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Santiago M. Mola
> Priority: Minor
> Fix For: 1.6.0
>
>
> The following query throws an analysis exception:
> {code}
> SELECT * FROM t WHERE NULL NOT IN (1, 2, 3);
> {code}
> The exception is:
> {code}
> org.apache.spark.sql.AnalysisException: invalid cast from int to null;
> at
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$class.failAnalysis(CheckAnalysis.scala:38)
> at
> org.apache.spark.sql.catalyst.analysis.Analyzer.failAnalysis(Analyzer.scala:42)
> at
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:66)
> at
> org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:52)
> {code}
> Here is a test that can be added to AnalysisSuite to check the issue:
> {code}
> test("SPARK-XXXX regression test") {
> val plan = Project(Alias(In(Literal(null), Seq(Literal(1), Literal(2))),
> "a")() :: Nil,
> LocalRelation()
> )
> caseInsensitiveAnalyze(plan)
> }
> {code}
> Note that this kind of query is a corner case, but it is still valid SQL. An
> expression such as "NULL IN (...)" or "NULL NOT IN (...)" always gives NULL
> as a result, even if the list contains NULL. So it is safe to translate these
> expressions to Literal(null) during analysis.
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