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https://issues.apache.org/jira/browse/ASTERIXDB-3538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17914242#comment-17914242
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ASF subversion and git services commented on ASTERIXDB-3538:
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Commit 934eb698c328e1b854d40a567b4af42db6670fb9 in asterixdb's branch
refs/heads/master from preetham0202
[ https://gitbox.apache.org/repos/asf?p=asterixdb.git;h=934eb698c3 ]
[ASTERIXDB-3538][COMP] Remove subplan operators that produce empty variables
- user model changes: no
- storage format changes: no
- interface changes: no
Details:
Subplans that dont produce any variables are redundant, we can eliminate them
and optimize the query plan.
Ext-ref: MB-64328
Change-Id: Ie123ccaafbd528d127bd91ecf0a6b5e93c497683
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/19291
Reviewed-by: Ali Alsuliman <[email protected]>
Tested-by: Ali Alsuliman <[email protected]>
> Eliminate empty subplan as they are redundant
> ---------------------------------------------
>
> Key: ASTERIXDB-3538
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-3538
> Project: Apache AsterixDB
> Issue Type: Improvement
> Components: COMP - Compiler
> Affects Versions: 0.9.10
> Reporter: Preetham
> Priority: Major
> Labels: triaged
> Fix For: 0.9.10
>
>
> Some query plans may contain subplans that are redundant, A rule can be added
> that eliminates all such subplans
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