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Posted to issues@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2018/02/14 06:27:00 UTC
[jira] [Updated] (HIVE-18713) Optimize: Transform IN clauses to =
when there's only one element
[ https://issues.apache.org/jira/browse/HIVE-18713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gopal V updated HIVE-18713:
---------------------------
Attachment: HIVE-18713.1.patch
> Optimize: Transform IN clauses to = when there's only one element
> -----------------------------------------------------------------
>
> Key: HIVE-18713
> URL: https://issues.apache.org/jira/browse/HIVE-18713
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Affects Versions: 3.0.0
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Major
> Attachments: HIVE-18713.1.patch
>
>
> (col1) IN (col2) can be transformed to (col1) = (col2), to avoid the hash-set implementation.
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