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https://issues.apache.org/jira/browse/DRILL-2406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Altekruse updated DRILL-2406:
-----------------------------------
Attachment: DRILL-2406-part2-planning-time-expression-evaulutation.diff
DRILL-2406-part1-planning-time-expression-evaulutation.patch
The part one patch attached here is identical to the old DRILL-2060 part 1
patch that was associated with a JIRA that now depends on this one. The part 2
patch is the portion of the 2060 part 2 patch that enables access the
expression interpretation at planning time. The constant folding rule will be
checked in as 2060, but all of the infrastructure added to make expression
evaluation possible at planning time has been moved here.
> 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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