GitHub user reggert opened a pull request:
https://github.com/apache/spark/pull/15899
[SPARK-18466] added withFilter method to RDD
## What changes were proposed in this pull request?
A `withFilter` method has been added to `RDD` as an alias for the `filter`
method. When using `for` comprehensions, the Scala compiler prefers (and as of
2.12, _requires_) the lazy `withFilter` method, only falling back to using the
`filter` method (which, for regular collections, is non-lazy, but for RDDs is
lazy). Prior to Scala 2.12, this fallback causes the compiler to emit a
warning, and as of Scala 2.12, it results in an error.
## How was this patch tested?
`RDDSuite` was updated by adding a line to "basic operations" that
duplicates the behavior of the `filter` test, but uses a `for` comprehension
instead of a direct method call.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/reggert/spark feature/withfilter
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15899.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 #15899
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commit db9cf5a9627755e1c8e212b7f29d54dc8bed1c54
Author: Richard W. Eggert II <richard.egg...@gmail.com>
Date: 2016-11-16T05:52:27Z
[SPARK-18466] added withFilter method to RDD
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