GitHub user wangyum opened a pull request:
https://github.com/apache/spark/pull/18841
[SPARK-21635][SQL] ACOS(2) and ASIN(2) should be null
## What changes were proposed in this pull request?
This PR makes ACOS(2) and ASIN(2) to null, same MySQL.
I have submit a [patch](https://issues.apache.org/jira/browse/HIVE-17240)
for Hive.
## 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-21635
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18841.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 #18841
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commit ebafff0b6bc641d6d8cd0437271244d8d11fa2e3
Author: Yuming Wang <[email protected]>
Date: 2017-08-04T05:58:03Z
ACOS(2) and ASIN(2) should be null
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