[jira] [Commented] (HIVE-7730) Get instance of HiveSemanticAnalyzerHookContext from configuration

["Ashutosh Chauhan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-7730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14097059#comment-14097059 ] 

Ashutosh Chauhan commented on HIVE-7730:
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If all you want is list of columns accessed in query, that is possible today with existing interface. Look at: itests/util/src/main/java/org/apache/hadoop/hive/ql/hooks/CheckColumnAccessHook.java

> Get instance of HiveSemanticAnalyzerHookContext from configuration
> ------------------------------------------------------------------
>
>                 Key: HIVE-7730
>                 URL: https://issues.apache.org/jira/browse/HIVE-7730
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Xiaomeng Huang
>         Attachments: HIVE-7730.001.patch
>
>
> Now what we get from HiveSemanticAnalyzerHookContextImpl is limited. If we have hook of HiveSemanticAnalyzerHook, we may want to get more things from hookContext. (e.g. the needed colums from query).
> So we should get instance of HiveSemanticAnalyzerHookContext from configuration, extends HiveSemanticAnalyzerHookContext with a new implementation, overide the HiveSemanticAnalyzerHookContext.update() and put what you want to the class.



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