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Posted to issues@calcite.apache.org by "Stamatis Zampetakis (Jira)" <ji...@apache.org> on 2021/12/19 09:51:00 UTC

[jira] [Commented] (CALCITE-4952) Enable use of RelMetadataQuery using a simplistic & slow proxy path

    [ https://issues.apache.org/jira/browse/CALCITE-4952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17462116#comment-17462116 ] 

Stamatis Zampetakis commented on CALCITE-4952:
----------------------------------------------

[~jnadeau]  If I remember well it is possible to debug and step into Janino generated classes via the IDE. If you think it is easier to debug things via the proxy solution then I'm fine with it. 

> Enable use of RelMetadataQuery using a simplistic & slow proxy path
> -------------------------------------------------------------------
>
>                 Key: CALCITE-4952
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4952
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>            Reporter: Jacques Nadeau
>            Assignee: Jacques Nadeau
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> As part of working on CALCITE-4882 and CALCITE-4928, it became clear that there should be a simple, non-janino implementation of RelMetadataQuery internals to help with debugging. I'm not sure when/how but as of right now the Reflective handlers can't be used with RelMetadataQuery without also using Janino.



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