You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2014/08/27 00:43:57 UTC

[jira] [Updated] (HIVE-7835) [CBO] Handle a case where FieldTimmer trims all fields from input

     [ https://issues.apache.org/jira/browse/HIVE-7835?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ashutosh Chauhan updated HIVE-7835:
-----------------------------------

    Status: Patch Available  (was: Open)

> [CBO] Handle a case where FieldTimmer trims all fields from input
> -----------------------------------------------------------------
>
>                 Key: HIVE-7835
>                 URL: https://issues.apache.org/jira/browse/HIVE-7835
>             Project: Hive
>          Issue Type: Sub-task
>          Components: CBO
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: h-7835.patch
>
>
> eg in queries like select 1 from t1 where nothing needs to be projected we generate empty project list which results in incorrect ast getting generated. Currently, we fix while generating ast by eliminating such AST node, but better is to generate correct project list to begin with.



--
This message was sent by Atlassian JIRA
(v6.2#6252)