GitHub user jinxing64 opened a pull request:
https://github.com/apache/spark/pull/22712
[SPARK-25724] Add sorting functionality in MapType.
## What changes were proposed in this pull request?
This is related to https://github.com/apache/spark/pull/19330.
As subtask of SPARK-18134, this PR proposes to add a functionality in
`MapType` to sort `MapData`, in which all entries are already sorted.
## How was this patch tested?
Tests added.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jinxing64/spark SPARK-25724
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22712.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 #22712
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commit f8dd1a6008acc82b15fb63607c1ccd84e5487039
Author: jinxing <jinxing6042@...>
Date: 2018-10-12T16:55:37Z
[SPARK-25724] Add sorting functionality in MapType.
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