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https://issues.apache.org/jira/browse/SPARK-14800?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-14800:
------------------------------------

    Assignee:     (was: Apache Spark)

> Dealing with null as a value in options for each internal data source
> ---------------------------------------------------------------------
>
>                 Key: SPARK-14800
>                 URL: https://issues.apache.org/jira/browse/SPARK-14800
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Hyukjin Kwon
>            Priority: Minor
>
> This was found in https://github.com/apache/spark/pull/12494.
> Currently, most of options in data sources throws {{NullPointerException}} 
> when given value is {{null}}.
> For example, the codes below:
> {code}
> sqlContext.read
>       .format("csv")
>       .option("compression", null)
> {code}
> throws an exception below:
> {code}
> java.lang.NullPointerException was thrown.
> java.lang.NullPointerException
>     at 
> org.apache.spark.sql.execution.datasources.csv.CSVOptions.getChar(CSVOptions.scala:32)
>     at 
> org.apache.spark.sql.execution.datasources.csv.CSVOptions.<init>(CSVOptions.scala:68)
>     at 
> org.apache.spark.sql.execution.datasources.csv.DefaultSource.prepareWrite(DefaultSource.scala:86)
> ...
> {code}
> while some of options such as {{nullValue}} in CSV data source accepts 
> {{null}} .
> So, the options throwing {{NullPointerException}} when it sets to {{null}} 
> might have to be handled separately for each data source.



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