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https://issues.apache.org/jira/browse/SPARK-8005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14645422#comment-14645422
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Apache Spark commented on SPARK-8005:
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User 'JDrit' has created a pull request for this issue:
https://github.com/apache/spark/pull/7743
> Support INPUT__FILE__NAME virtual column
> ----------------------------------------
>
> Key: SPARK-8005
> URL: https://issues.apache.org/jira/browse/SPARK-8005
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
>
> INPUT__FILE__NAME: input file name.
> One way to do this is to do it through a thread local variable in the
> SqlNewHadoopRDD.scala, and read that thread local variable in an expression.
> (similar to SparkPartitionID expression)
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