You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@calcite.apache.org by "Haisheng Yuan (Jira)" <ji...@apache.org> on 2019/10/09 19:09:00 UTC

[jira] [Resolved] (CALCITE-3330) propagateCostImprovements() could result in stack overflow

     [ https://issues.apache.org/jira/browse/CALCITE-3330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Haisheng Yuan resolved CALCITE-3330.
------------------------------------
    Fix Version/s: 1.22.0
       Resolution: Fixed

Fixed in https://github.com/apache/calcite/commit/e43595482617b1bb991407800c068a0c727e5c17.

> propagateCostImprovements() could result in stack overflow
> ----------------------------------------------------------
>
>                 Key: CALCITE-3330
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3330
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Xiening Dai
>            Assignee: Xiening Dai
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.22.0
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Current implementation uses depth first approach for propagating cost improvements to parent rel nodes. This could lead to stack overflow if the rel node hierarchy is very deep. Suggest use breath first approach for cost propagation. 



--
This message was sent by Atlassian Jira
(v8.3.4#803005)