GitHub user mgaido91 opened a pull request:
https://github.com/apache/spark/pull/21028
[SPARK-23922][SQL] Add arrays_overlap function
## What changes were proposed in this pull request?
The PR adds the function `arrays_overlap`. This function returns `true` if
the input arrays contain a non-null common element; if not, it returns `null`
if any of the arrays contains a `null` element, `false` otherwise.
## How was this patch tested?
added UTs
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mgaido91/spark SPARK-23922
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/21028.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 #21028
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commit e5ebdad41645c0058f1cd2788f6cc1d4158ff2e9
Author: Marco Gaido <marcogaido91@...>
Date: 2018-04-10T13:49:53Z
[SPARK-23922][SQL] Add arrays_overlap function
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