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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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Hyukjin Kwon resolved SPARK-14800.
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Resolution: Incomplete
> 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
> Labels: bulk-closed
>
> 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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