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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12776) Add code for parsing any stand-alone HQL expression
Date Wed, 06 Jan 2016 18:12:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15085971#comment-15085971
] 

Alan Gates commented on HIVE-12776:
-----------------------------------

One question I have for this is what expectations are you putting on the format of Hive's
AST?  I'm not in favor of declaring the AST a public interface, because that would limit our
ability to make changes to it.  Without that though anyone who calls this method may see different
AST's depending on the version of Hive they are working with.

> Add code for parsing any stand-alone HQL expression
> ---------------------------------------------------
>
>                 Key: HIVE-12776
>                 URL: https://issues.apache.org/jira/browse/HIVE-12776
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Rajat Khandelwal
>            Assignee: Rajat Khandelwal
>         Attachments: HIVE-12776.01.patch, HIVE-12776.02.patch
>
>
> Extensions that use Hive QL as their standard language, will benefit from this. 
> Apache Lens uses HQL as its language of choice. To support that, it depends on a fork
of Hive, which has such code. I'm planning to port that to Apache Hive. 
> Relevant commit: https://github.com/InMobi/hive/commit/7caea9ed1d269c1cd1d1326cb39c1db7e0bf2bba#diff-fb3acd67881ceb02e83c2e42cf70beef



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