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Posted to issues@flink.apache.org by "Timo Walther (Jira)" <ji...@apache.org> on 2021/10/29 08:47:00 UTC

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

Timo Walther created FLINK-24700:
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             Summary: 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


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
...



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