GitHub user adrian-wang opened a pull request:
https://github.com/apache/spark/pull/3443
[SPARK-4593] [SQL] return null when divider is 0 of Double type
SELECT max(1/0) FROM src
would return a very large number, which is obviously not right.
For hive-0.12, hive would return `Infinity` for 1/0, while for hive-0.13.1,
it is `NULL` for 1/0.
I think it is better to keep our behavior with newer Hive version.
This PR ensures that when the divider is 0, the result of expression should
be NULL, same with hive-0.13.1
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/adrian-wang/spark div
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/3443.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 #3443
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commit 2dfe50f607a6dced1554d07daa3a8d2e9664ffa9
Author: Daoyuan Wang <daoyuan.w...@intel.com>
Date: 2014-11-25T05:54:34Z
return null when divider is 0 of Double type
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