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Posted to issues@flink.apache.org by "Martijn Visser (Jira)" <ji...@apache.org> on 2022/12/16 09:12:00 UTC

[jira] [Commented] (FLINK-30368) Fix calcite method RelMdUtil$numDistinctVals() wrongly return zero if the method input domainSize much larger than numSelected

    [ https://issues.apache.org/jira/browse/FLINK-30368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17648423#comment-17648423 ] 

Martijn Visser commented on FLINK-30368:
----------------------------------------

[~337361684@qq.com] Why do this over upgrading to the Calcite version that fixes this? There's a lot of work being done atm the upgrade our Calcite dependencies 

> Fix calcite method RelMdUtil$numDistinctVals() wrongly return zero if the method input domainSize much larger than numSelected 
> -------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-30368
>                 URL: https://issues.apache.org/jira/browse/FLINK-30368
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / Planner
>    Affects Versions: 1.17.0
>            Reporter: Yunhong Zheng
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.17.0
>
>
> Fix calcite method RelMdUtil$numDistinctVals() wrongly return zero if the method input domainSize much larger than numSelected. This wrong zero value will affect the selection of join type。 



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