GitHub user jose-torres opened a pull request:

    https://github.com/apache/spark/pull/20726

    [SPARK-23574][CORE] Report SinglePartition in DataSourceV2ScanExec when 
there's exactly 1 data reader factory.

    ## What changes were proposed in this pull request?
    
    Report SinglePartition in DataSourceV2ScanExec when there's exactly 1 data 
reader factory.
    
    ## How was this patch tested?
    
    existing unit tests


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/jose-torres/spark SPARK-23574

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/spark/pull/20726.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #20726
    
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commit efb839759ddc1df1eec1b14500eebe5e4ca903c5
Author: Jose Torres <jose@...>
Date:   2018-03-03T04:34:05Z

    SinglePartition check

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