GitHub user JihongMA opened a pull request:
https://github.com/apache/spark/pull/9705
Spark 11720
return Double.NaN for mean/average when count == 0 for all numeric types
that is converted to Double, Decimal type continue to return null.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/JihongMA/spark-1 SPARK-11720
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9705.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 #9705
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commit ab5f57da364e9e0b5db4b004e1fb1778726b47c6
Author: JihongMa <[email protected]>
Date: 2015-11-13T04:02:45Z
rebase with upstream
commit 95af5c81a42d15bb307cf67ecf6e61ce2875f936
Author: JihongMa <[email protected]>
Date: 2015-11-13T04:04:38Z
rebase with upstream
commit a42f736aaf9b3dd24b7fa9f14276e491b93b053b
Author: JihongMa <[email protected]>
Date: 2015-11-13T21:55:58Z
handle NaN for avg/mean
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