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https://issues.apache.org/jira/browse/FLINK-27543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17533666#comment-17533666
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Zheng Hu commented on FLINK-27543:
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I think a better approach is hiding the `fileStatsExtractor` or
`StatsExtractor` inside the writer which was created by the file format's
writer factory.
Let me publish a PR for this.
> Introduce StatsProducer to refactor code in DataFileWriter
> -----------------------------------------------------------
>
> Key: FLINK-27543
> URL: https://issues.apache.org/jira/browse/FLINK-27543
> Project: Flink
> Issue Type: Improvement
> Components: Table Store
> Reporter: Jingsong Lee
> Priority: Major
> Fix For: table-store-0.2.0
>
>
> Lots of `fileStatsExtractor == null` looks bad.
> I think we can have a `StatsProducer` to unify `StatsExtractor` and
> `StatsCollector`. To reduce caller complexity.
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