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From "Leonard Xu (Jira)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-14455) Improve join reorder feature without table statistics
Date Fri, 18 Oct 2019 12:45:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-14455?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Leonard Xu updated FLINK-14455:
-------------------------------
    Description: 
tpc-ds query85.sql run fail when enable TABLE_OPTIMIZER_JOIN_REORDER_ENABLED, and run success
when disable TABLE_OPTIMIZER_JOIN_REORDER_ENABLED .
 I analyzed the optimized plan and thought it‘s a negative case for join reorder feature
without table statistic.

 

  was:
tpc-ds query85.sql run fail when enable TABLE_OPTIMIZER_JOIN_REORDER_ENABLED,and run success
when disable TABLE_OPTIMIZER_JOIN_REORDER_ENABLED.
I analyzed the optimized plan and thought it‘s a bad base for  join reorder feature.

 


> Improve join reorder feature without table statistics
> -----------------------------------------------------
>
>                 Key: FLINK-14455
>                 URL: https://issues.apache.org/jira/browse/FLINK-14455
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / Planner
>    Affects Versions: 1.9.0
>            Reporter: Leonard Xu
>            Priority: Major
>
> tpc-ds query85.sql run fail when enable TABLE_OPTIMIZER_JOIN_REORDER_ENABLED, and run
success when disable TABLE_OPTIMIZER_JOIN_REORDER_ENABLED .
>  I analyzed the optimized plan and thought it‘s a negative case for join reorder feature
without table statistic.
>  



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