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https://issues.apache.org/jira/browse/FLINK-18508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-18508:
-----------------------------------
Labels: auto-deprioritized-major auto-deprioritized-minor
pull-request-available (was: auto-deprioritized-major pull-request-available
stale-minor)
Priority: Not a Priority (was: Minor)
This issue was labeled "stale-minor" 7 days ago and has not received any
updates so it is being deprioritized. If this ticket is actually Minor, please
raise the priority and ask a committer to assign you the issue or revive the
public discussion.
> Dynamic source supports statistics and parallelism report
> ---------------------------------------------------------
>
> Key: FLINK-18508
> URL: https://issues.apache.org/jira/browse/FLINK-18508
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / API
> Reporter: Jingsong Lee
> Priority: Not a Priority
> Labels: auto-deprioritized-major, auto-deprioritized-minor,
> pull-request-available
>
> Add SupportsStatisticsReport and SupportsParallelismReport to dynamic source,
> source can return some information to help table optimizer.
> This information can be more accurate from the source rather than the
> catalog.
> * First, the information is computed base on real data, for iceberg /
> filesystem connector, it can be calculated from real files. Although it is
> related to physical/runtime, it is real and exact.
> * Second, For example, for iceberg / filesystem connector, after filter and
> partition pushdown, the statistics have been greatly adjusted, and many files
> may have been filtered out.
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