GitHub user ericvandenbergfb opened a pull request:
https://github.com/apache/spark/pull/18010
[SPARK-20778][SQL] Implement array_inetrsect function.
Implement array_intersect UDF for intersecting first array with set of
arrays.
## What changes were proposed in this pull request?
Implement a function array_intersect that computes the intersection of
first array and remaining arrays. Similar to hive implementation of array
intersect.
## How was this patch tested?
Added unit tests to validate eval and code gen logic.
Performed testing using spark-shell with similar tests to hive array
intersect.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ericvandenbergfb/spark
spark.array_intersect.udf
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18010.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 #18010
----
commit a13edcde385fd6bae83fa1d2ad4999c72456acc3
Author: Eric Vandenberg <ericvandenb...@fb.com>
Date: 2017-05-16T23:45:29Z
[SPARK-20778][SQL] Implement array_inetrsect function.
Implement array_intersect UDF for intersecting first array with set of
arrays.
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