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https://issues.apache.org/jira/browse/DRILL-4270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15097015#comment-15097015
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ASF GitHub Bot commented on DRILL-4270:
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GitHub user adeneche opened a pull request:
https://github.com/apache/drill/pull/322
DRILL-4270: Create a separate WindowFramer that supports the FRAME cl…
…ause
separate DefaultFrameTemplate into 2 implementations: one that supports
custom frames (aggregations, first_value, last_value) and one that doesn't
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/adeneche/incubator-drill DRILL-4270
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/322.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #322
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commit 8bcde155d23550d6733f4dcb18868bdc3fb3b119
Author: adeneche <[email protected]>
Date: 2016-01-11T22:47:32Z
DRILL-4270: Create a separate WindowFramer that supports the FRAME clause
separate DefaultFrameTemplate into 2 implementations: one that supports
custom frames (aggregations, first_value, last_value) and one that doesn't
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> Create a separate WindowFramer that supports the FRAME clause
> -------------------------------------------------------------
>
> Key: DRILL-4270
> URL: https://issues.apache.org/jira/browse/DRILL-4270
> Project: Apache Drill
> Issue Type: Sub-task
> Components: Execution - Relational Operators
> Affects Versions: 1.5.0
> Reporter: Deneche A. Hakim
> Assignee: Deneche A. Hakim
> Fix For: Future
>
>
> Currently most the window functions logic is handled by DefaultFrameTemplate.
> Create a separate CustomFrameTemplate that handles the FRAME clause, this
> should make the code in both classes more focused and will make it easier for
> us to add support for the FRAME clause.
> Aggregations, FIRST_VALUE and LAST_VALUE will be handled by
> CustomFrameTemplate, and all remaining window functions (Ranking, ROW_NUMBER,
> LEAD and LAG) will be handled by DefaultFrameTemplate.
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