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From Sergio Peña (JIRA) <>
Subject [jira] [Commented] (HIVE-11413) Error in detecting availability of HiveSemanticAnalyzerHooks
Date Mon, 03 Aug 2015 04:27:04 GMT


Sergio Peña commented on HIVE-11413:

Hi [~raajay],
Can {{saHooks}} variable be null? If so, then it would be good to validate that too. Or {{saHooks.isEmpty}}
will fail with a Null Pointer Exception.

> Error in detecting availability of HiveSemanticAnalyzerHooks
> ------------------------------------------------------------
>                 Key: HIVE-11413
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 2.0.0
>            Reporter: Raajay Viswanathan
>            Assignee: Raajay Viswanathan
>            Priority: Trivial
>              Labels: newbie
>             Fix For: 2.0.0
>         Attachments: HIVE-11413.patch
> In {{compile(String, Boolean)}} function in {{}}, the list of available {{HiveSemanticAnalyzerHook}}
(_saHooks_) are obtained using the {{getHooks}} method. This method always  returns a {{List}}
of hooks. 
> However, while checking for availability of hooks, the current version of the code uses
a comparison of _saHooks_ with NULL. This is incorrect, as the segment of code designed to
call pre and post Analyze functions gets executed even when the list is empty. The comparison
should be changed to {{saHooks.size() > 0}}.

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