GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/11514
[SPARK-13671] [SQL] Use different physical plans for RDD and data sources
## What changes were proposed in this pull request?
This PR split the PhysicalRDD into two classes, PhysicalRDD and
PhysicalScan. PhysicalRDD is used for DataFrames that is created from existing
RDD. PhysicalScan is used for DataFrame that is created from data sources. This
enable use to apply different optimization on both of them.
## How was this patch tested?
Existing tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark existing_rdd
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11514.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 #11514
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commit 0e78b3afde48f1a4d2d470ee715efe1031b89882
Author: Davies Liu <[email protected]>
Date: 2016-03-04T07:58:11Z
separate physical RDD and scan
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