GitHub user wangyum opened a pull request:
https://github.com/apache/spark/pull/17999
[SPARK-20751][SQL] Add built-in SQL Function - COT
## What changes were proposed in this pull request?
Add built-in SQL Function - COT.
## How was this patch tested?
unit tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wangyum/spark SPARK-20751
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17999.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 #17999
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commit d30484c4012cfee52f2abb6c8254461c86ff371f
Author: Yuming Wang <[email protected]>
Date: 2017-05-16T10:40:18Z
Add cotangent function.
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