GitHub user BryanCutler opened a pull request:
https://github.com/apache/spark/pull/21637
[SPARK-24324][PYTHON][FOLLOWUP] Grouped Map positional conf should have
deprecation note
## What changes were proposed in this pull request?
Followup to the discussion of the added conf in SPARK-24324 which allows
assignment by column position only. This conf is to preserve old behavior and
will be removed in future releases, so it should have a note to indicate that.
## How was this patch tested?
NA
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/BryanCutler/spark
arrow-groupedMap-conf-deprecate-followup-SPARK-24324
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/21637.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 #21637
commit 84e680ef2abd17e9c85e554d8ced987cc3384a51
Author: Bryan Cutler
Date: 2018-06-25T17:54:29Z
mark conf to be deprecated in future releases
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