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Posted to issues@calcite.apache.org by "Yuzhao Chen (JIRA)" <ji...@apache.org> on 2018/08/08 04:19:00 UTC

[jira] [Commented] (CALCITE-2454) Fix bug in HepPlanner which occurred when two RelNodes have identical digest but different row-type

    [ https://issues.apache.org/jira/browse/CALCITE-2454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16572654#comment-16572654 ] 

Yuzhao Chen commented on CALCITE-2454:
--------------------------------------

Hi, [~julianhyde]

I have fired a JIRA: https://github.com/apache/calcite/pull/781

> Fix bug in HepPlanner which occurred when two RelNodes have identical digest but different row-type
> ---------------------------------------------------------------------------------------------------
>
>                 Key: CALCITE-2454
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2454
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.17.0
>            Reporter: Yuzhao Chen
>            Assignee: Julian Hyde
>            Priority: Major
>             Fix For: 1.18.0
>
>
> After CALCITE-2116, a RelNode will be reused based on digest, but now many nodes's digests do not have type info, e.g. LogicalProject, this will affect some rules when we wanna transform to a node with same digest and same type (HepPlanner may pick out a RelNode with different type).
> So, we should add type info just like VolcanoPlanner.



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