GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/21258
[SPARK-23933][SQL] Add map_fromarray function
## What changes were proposed in this pull request?
The PR adds the SQL function `map_fromarray`. The behavior of the function
is based on Presto's `map`. Since SparkSQL already had a `map` function, we
prepared the different name for this behavior.
This function returns returns a map from a pair of arrays for keys and
values.
## How was this patch tested?
Added UTs
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark SPARK-23933
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/21258.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 #21258
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commit 1ca1c4138ed83f5137768f51f131920ac5cc559e
Author: Kazuaki Ishizaki <ishizaki@...>
Date: 2018-05-07T09:05:51Z
initial commit
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