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https://issues.apache.org/jira/browse/FLINK-27655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17568800#comment-17568800
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Jingsong Lee commented on FLINK-27655:
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Avro dose not provide statistics.
> Implement Avro File statistic collector
> ---------------------------------------
>
> Key: FLINK-27655
> URL: https://issues.apache.org/jira/browse/FLINK-27655
> Project: Flink
> Issue Type: Improvement
> Reporter: Zheng Hu
> Priority: Minor
> Fix For: table-store-0.2.0
>
>
> Currently, the flink table store's avro file writer don't provide its File
> statistic collector. So we have to use the generic FieldStatsCollector.
> In fact, the correct direction is: Making all format writer has their own
> FileStatsCollector, so that we can just parse the columnar statistic from the
> file tailer, instead of comparing each column max-min when writing the
> records into the columnar file.
> In this way, I think we can just remove the FileFormatImpl class and
> FieldStatsCollector class.
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