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https://issues.apache.org/jira/browse/SPARK-12818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15209262#comment-15209262
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Reynold Xin commented on SPARK-12818:
-------------------------------------

I think we have implemented the common ones that make sense. The most useful 
things are actually if you try using them, I'm sure you can find bugs or 
features missing and that can feed back into the roadmap.

> Implement Bloom filter and count-min sketch in DataFrames
> ---------------------------------------------------------
>
>                 Key: SPARK-12818
>                 URL: https://issues.apache.org/jira/browse/SPARK-12818
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>            Reporter: Reynold Xin
>            Assignee: Cheng Lian
>             Fix For: 2.0.0
>
>         Attachments: BloomFilterandCount-MinSketchinSpark2.0.pdf
>
>
> This ticket tracks implementing Bloom filter and count-min sketch support in 
> DataFrames. Please see the attached design doc for more information.



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