[jira] [Commented] (DRILL-2406) Fix expression interpreter to allow executing expressions at planning time

["Jason Altekruse (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-2406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14353703#comment-14353703 ] 

Jason Altekruse commented on DRILL-2406:
----------------------------------------

Part 1 (previously 2060 part 1) https://reviews.apache.org/r/31567/

> Fix expression interpreter to allow executing expressions at planning time
> --------------------------------------------------------------------------
>
>                 Key: DRILL-2406
>                 URL: https://issues.apache.org/jira/browse/DRILL-2406
>             Project: Apache Drill
>          Issue Type: Improvement
>            Reporter: Jason Altekruse
>            Assignee: Jason Altekruse
>            Priority: Critical
>             Fix For: 0.8.0
>
>         Attachments: DRILL-2406-part1-planning-time-expression-evaulutation.patch, DRILL-2406-part2-planning-time-expression-evaulutation.diff
>
>
> The expression interpreter currently available in Drill cannot be used at planning time, as it does not have a means to connect to the direct memory allocator stored at the DrillbitContext level. To implement new rules based on evaluating expressions on constants, or small datasets, such as partition information this limitation must be addressed.



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