GitHub user mgaido91 opened a pull request:
https://github.com/apache/spark/pull/21196
[SPARK-24123][SQL] Fix precision issues in monthsBetween with more than 8
digits
## What changes were proposed in this pull request?
SPARK-23902 introduced the ability to retrieve more than 8 digits in
`monthsBetween`. Unfortunately, current implementation can cause precision loss
in such a case. This was causing also a flaky UT.
This PR mirrors Hive's implementation in order to avoid precision loss also
when more than 8 digits are returned.
## How was this patch tested?
running 10000000 times the flaky UT
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mgaido91/spark SPARK-24123
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/21196.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 #21196
----
commit c398b0455e53355933dc96198bc9f643c3e0c105
Author: Marco Gaido <marcogaido91@...>
Date: 2018-04-30T19:06:18Z
[SPARK-24123][SQL] Fix precision issues in monthsBetween with more than 8
digits
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