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Posted to issues@calcite.apache.org by "Atri Sharma (JIRA)" <ji...@apache.org> on 2018/05/17 11:06:00 UTC
[jira] [Commented] (CALCITE-500) Ensure EnumerableJoin hashes the
smallest input
[ https://issues.apache.org/jira/browse/CALCITE-500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16478903#comment-16478903 ]
Atri Sharma commented on CALCITE-500:
-------------------------------------
PR:
[https://github.com/apache/calcite/pull/691]
[~julianhyde] [~vladimirsitnikov] Please take a look and let me know. I tested and saw that for inner joins, the smaller side is being built and the larger side is being probed.
Please see and let me know
> Ensure EnumerableJoin hashes the smallest input
> -----------------------------------------------
>
> Key: CALCITE-500
> URL: https://issues.apache.org/jira/browse/CALCITE-500
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.0.0-incubating
> Reporter: Vladimir Sitnikov
> Assignee: Atri Sharma
> Priority: Major
> Labels: newbie
> Attachments: lookup.png
>
>
> {{EnumerableJoin}} tries to put the smallest input the first, however when it comes to execution, Calcite creates lookup for _second_ input of join.
> It would be nice to ensure the lookup is created on the smallest input.
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