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Posted to issues@calcite.apache.org by "Remus Rusanu (JIRA)" <ji...@apache.org> on 2017/03/08 19:45:38 UTC

[jira] [Commented] (CALCITE-1681) Provide a way to copy RelNode trees between clusters

    [ https://issues.apache.org/jira/browse/CALCITE-1681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15901874#comment-15901874 ] 

Remus Rusanu commented on CALCITE-1681:
---------------------------------------

https://github.com/apache/calcite/pull/392

This is not ready, but I pushed out early so I get feedback before I go to deep down the wrong track...

> Provide a way to copy RelNode trees between clusters
> ----------------------------------------------------
>
>                 Key: CALCITE-1681
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1681
>             Project: Calcite
>          Issue Type: Improvement
>            Reporter: Remus Rusanu
>            Assignee: Remus Rusanu
>
> In Hive we cache materialized view plans and reuse the cached plans in queries. For this we need a way to do deep clone copy of a RelNode tree from one RelOptCluster to another.



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