GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/14498
[SPARK-16904] [SQL] Removal of Hive Built-in Hash Functions and
TestHiveFunctionRegistry [WIP]
### What changes were proposed in this pull request?
Currently, the Hive built-in `hash` function is not being used in Spark
since Spark 2.0. The public interface does not allow users to unregister the
Spark built-in functions. Thus, users will never use Hive's built-in `hash`
function.
The only exception here is `TestHiveFunctionRegistry`, which allows users
to unregister the built-in functions. Thus, we can load Hive's hash function in
the test cases. If we disable it, 10+ test cases will fail because the results
are different from the Hive golden answer files.
This PR is to remove `hash` from the list of `hiveFunctions` in
`HiveSessionCatalog`. It will also remove `TestHiveFunctionRegistry`. This
removal makes us easier to remove `TestHiveSessionState` in the future.
### How was this patch tested?
TODO: migrated the disabled test cases to the other test suite.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark removeHash
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14498.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 #14498
----
commit a26122a2110f625eadec2385367779d7b6e4c3b1
Author: gatorsmile <[email protected]>
Date: 2016-08-04T04:06:28Z
remove hash
commit 3b3f3c8543a33d87bf53aa4f2945a34f6b7d0786
Author: gatorsmile <[email protected]>
Date: 2016-08-04T20:21:52Z
Merge remote-tracking branch 'upstream/master' into removeHash
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