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https://issues.apache.org/jira/browse/SPARK-19875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15925332#comment-15925332
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Takeshi Yamamuro edited comment on SPARK-19875 at 3/15/17 12:32 AM:
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If you understand a concrete reason about the bug you described, could you 
update the description in this JIRA so that we could fix in future.


was (Author: maropu):
Hi, Sameer. If you understand a concrete reason about the bug you described, 
could you update the description in this JIRA so that we could fix in future. 
Thanks.

> Map->filter on many columns gets stuck in constraint inference optimization 
> code
> --------------------------------------------------------------------------------
>
>                 Key: SPARK-19875
>                 URL: https://issues.apache.org/jira/browse/SPARK-19875
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.1.0
>            Reporter: Jay Pranavamurthi
>         Attachments: test10cols.csv, test50cols.csv, TestFilter.scala
>
>
> The attached code (TestFilter.scala) works with a 10-column csv dataset, but 
> gets stuck with a 50-column csv dataset. Both datasets are attached.



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