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Posted to issues@spark.apache.org by "Burak Yavuz (JIRA)" <ji...@apache.org> on 2016/04/20 21:11:25 UTC
[jira] [Commented] (SPARK-14766) Attribute reference mismatch with
Dataset filter + mapPartitions
[ https://issues.apache.org/jira/browse/SPARK-14766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15250525#comment-15250525 ]
Burak Yavuz commented on SPARK-14766:
-------------------------------------
cc [~cloud_fan] [~marmbrus]
> Attribute reference mismatch with Dataset filter + mapPartitions
> ----------------------------------------------------------------
>
> Key: SPARK-14766
> URL: https://issues.apache.org/jira/browse/SPARK-14766
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Burak Yavuz
>
> After a filter, the Dataset references seem to be not copied properly leading to an exception. To reproduce, you may use the following code:
> {code}
> Seq((1, 1)).toDS().filter(_._1 != 0).mapPartitions { iter => iter }.count()
> {code}
> Using explain shows the problem:
> {code}
> == Physical Plan ==
> !MapPartitions <function1>, newInstance(class scala.Tuple2), [input[0, scala.Tuple2]._1 AS _1#38521,input[0, scala.Tuple2]._2 AS _2#38522]
> +- WholeStageCodegen
> : +- Filter <function1>.apply
> : +- INPUT
> +- LocalTableScan [_1#38512,_2#38513], [[0,1,1]]
> {code}
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