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https://issues.apache.org/jira/browse/HIVE-4209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13645176#comment-13645176
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Phabricator commented on HIVE-4209:
-----------------------------------
njain has accepted the revision "HIVE-4209 [jira] Cache evaluation result of
deterministic expression and reuse it".
REVISION DETAIL
https://reviews.facebook.net/D9585
BRANCH
HIVE-4209
ARCANIST PROJECT
hive
To: JIRA, njain, navis
Cc: njain
> Cache evaluation result of deterministic expression and reuse it
> ----------------------------------------------------------------
>
> Key: HIVE-4209
> URL: https://issues.apache.org/jira/browse/HIVE-4209
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
> Attachments: HIVE-4209.6.patch.txt, HIVE-4209.D9585.1.patch,
> HIVE-4209.D9585.2.patch, HIVE-4209.D9585.3.patch, HIVE-4209.D9585.4.patch,
> HIVE-4209.D9585.5.patch
>
>
> For example,
> {noformat}
> select key from src where key + 1 > 100 AND key + 1 < 200 limit 3;
> {noformat}
> key + 1 need not to be evaluated twice.
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