GitHub user rednaxelafx opened a pull request:
https://github.com/apache/spark/pull/21016
[SPARK-23947][SQL] Add hashUTF8String convenience method to hasher classes
## What changes were proposed in this pull request?
Add `hashUTF8String()` to the hasher classes to allow Spark SQL codegen to
generate cleaner code for hashing `UTF8String`s. No change in behavior
otherwise.
Although with the introduction of SPARK-10399, the code size for hashing
`UTF8String` is already smaller, it's still good to extract a separate function
in the hasher classes so that the generated code can stay clean.
## How was this patch tested?
Existing tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rednaxelafx/apache-spark hashutf8
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/21016.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 #21016
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commit ead91a453fb6a3f92255d14d37c1d4a6beac22fd
Author: Kris Mok <kris.mok@...>
Date: 2018-04-09T22:30:03Z
SPARK-23947 - Add hashUTF8String convenience method to hasher classes
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