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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2016/11/07 09:16:58 UTC
[jira] [Resolved] (SPARK-16904) Removal of Hive Built-in Hash
Functions and TestHiveFunctionRegistry
[ https://issues.apache.org/jira/browse/SPARK-16904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Reynold Xin resolved SPARK-16904.
---------------------------------
Resolution: Fixed
Assignee: Xiao Li
Fix Version/s: 2.1.0
> Removal of Hive Built-in Hash Functions and TestHiveFunctionRegistry
> --------------------------------------------------------------------
>
> Key: SPARK-16904
> URL: https://issues.apache.org/jira/browse/SPARK-16904
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Xiao Li
> Assignee: Xiao Li
> Fix For: 2.1.0
>
>
> 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.
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