GitHub user codeatri opened a pull request:
https://github.com/apache/spark/pull/22013
[SPARK-23939][SQL] Add transform_keys function
## What changes were proposed in this pull request?
This pr adds transform_keys function which applies the function to each
entry of the map and transforms the keys.
## How was this patch tested?
Added tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/codeatri/spark SPARK-23939
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22013.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 #22013
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commit 0a19cc44bf694f76f8f1be8faeaa16dc47f9bb86
Author: codeatri <nehapatil6@...>
Date: 2018-08-06T18:32:47Z
Added Support for transform_keys function
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