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From "Paul Praet (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-16044) input_file_name() returns empty strings in data sources based on NewHadoopRDD.
Date Tue, 20 Nov 2018 13:02:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-16044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16693200#comment-16693200
] 

Paul Praet commented on SPARK-16044:
------------------------------------

Still has issues. See https://issues.apache.org/jira/browse/SPARK-26128

> input_file_name() returns empty strings in data sources based on NewHadoopRDD.
> ------------------------------------------------------------------------------
>
>                 Key: SPARK-16044
>                 URL: https://issues.apache.org/jira/browse/SPARK-16044
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Hyukjin Kwon
>            Assignee: Hyukjin Kwon
>            Priority: Major
>             Fix For: 1.6.3, 2.0.0
>
>
> The issue is, {{input_file_name()}} function does not contain file paths when data sources
use {{NewHadoopRDD}}. This is currently only supported for {{FileScanRDD}} and {{HadoopRDD}}.
> To be clear, this does not affect Spark's internal data sources because currently they
all do not use {{NewHadoopRDD}}.
> However, there are several datasources using this. For example,
>  
> spark-redshift - [here|https://github.com/databricks/spark-redshift/blob/cba5eee1ab79ae8f0fa9e668373a54d2b5babf6b/src/main/scala/com/databricks/spark/redshift/RedshiftRelation.scala#L149]
> spark-xml - [here|https://github.com/databricks/spark-xml/blob/master/src/main/scala/com/databricks/spark/xml/util/XmlFile.scala#L39-L47]
> Currently, using this functions shows the output below:
> {code}
> +-----------------+
> |input_file_name()|
> +-----------------+
> |                 |
> |                 |
> |                 |
> |                 |
> |                 |
> |                 |
> |                 |
> |                 |
> |                 |
> |                 |
> |                 |
> +-----------------+
> {code}



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