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Posted to issues@calcite.apache.org by "Haisheng Yuan (Jira)" <ji...@apache.org> on 2020/05/05 23:59:00 UTC

[jira] [Updated] (CALCITE-3972) Allow RelBuilder to create RelNode with convention and use it for trait convert

     [ https://issues.apache.org/jira/browse/CALCITE-3972?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Haisheng Yuan updated CALCITE-3972:
-----------------------------------
    Fix Version/s: 1.23.0

> Allow RelBuilder to create RelNode with convention and use it for trait convert
> -------------------------------------------------------------------------------
>
>                 Key: CALCITE-3972
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3972
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Xiening Dai
>            Assignee: Xiening Dai
>            Priority: Major
>             Fix For: 1.23.0
>
>
> 1. Provide Convention.transformRelBuilder() to transform an existing RelBuilder into one with specific convention.
> 2. RelBuilder provides withRelFactories() method to allow caller swap the underlying RelFactories and create a new builder. 
> 3. Use the new interface in RelCollationTraitDef for converting into RelCollation traits
> We can avoid ~1/3 of total rule firings in a N way join case with this change.



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