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Posted to issues@flink.apache.org by "Timo Walther (Jira)" <ji...@apache.org> on 2021/10/29 08:48:00 UTC

[jira] [Updated] (FLINK-24700) Clarify semantics of filter, projection, partition, and metadata pushdown

     [ https://issues.apache.org/jira/browse/FLINK-24700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timo Walther updated FLINK-24700:
---------------------------------
    Description: 
FLINK-19903 has revealed a couple of shortcomings that occur when implementing multiple ability interfaces. We should improve the documentation and better define the semantics.

- Push produced type not only for metadata pushdown but also projection push down.
- Clarify order of filter + projection
- Clarify order of projection/filter + partition
- Simplify handling of partition columns
...

  was:
FLINK-24165 has revealed a couple of shortcomings that occur when implementing multiple ability interfaces. We should improve the documentation and better define the semantics.

- Push produced type not only for metadata pushdown but also projection push down.
- Clarify order of filter + projection
- Clarify order of projection/filter + partition
- Simplify handling of partition columns
...


> Clarify semantics of filter, projection, partition, and metadata pushdown
> -------------------------------------------------------------------------
>
>                 Key: FLINK-24700
>                 URL: https://issues.apache.org/jira/browse/FLINK-24700
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / API
>            Reporter: Timo Walther
>            Assignee: Timo Walther
>            Priority: Major
>
> FLINK-19903 has revealed a couple of shortcomings that occur when implementing multiple ability interfaces. We should improve the documentation and better define the semantics.
> - Push produced type not only for metadata pushdown but also projection push down.
> - Clarify order of filter + projection
> - Clarify order of projection/filter + partition
> - Simplify handling of partition columns
> ...



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