[jira] [Commented] (HIVE-2925) Support non-MR fetching for simple queries with select/limit/filter operations only

["Phabricator (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-2925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13246467#comment-13246467 ] 

Phabricator commented on HIVE-2925:
-----------------------------------

njain has commented on the revision "HIVE-2925 [jira] Support non-MR fetching for simple queries with select/limit/filter operations only".

  I will review this soon in detail.

  But, one comment I had is that this is a backward incompatible change.
  Can you add a new conf. parameter to control this ?
  The default behavior of this parameter can be true, but we definitely need to provide a
  knob to the end user to turn this off.

REVISION DETAIL
  https://reviews.facebook.net/D2607

                
> Support non-MR fetching for simple queries with select/limit/filter operations only
> -----------------------------------------------------------------------------------
>
>                 Key: HIVE-2925
>                 URL: https://issues.apache.org/jira/browse/HIVE-2925
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Trivial
>         Attachments: HIVE-2925.D2607.1.patch
>
>
> It's trivial but frequently asked by end-users. Currently, select queries with simple conditions or limit should run MR job which takes some time especially for big tables, making the people irritated.
> For that kind of simple queries, using fetch task would make them happy.

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