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https://issues.apache.org/jira/browse/FLINK-27846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17630388#comment-17630388
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Jingsong Lee commented on FLINK-27846:
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Hi [~zjureel], there is schemaId in DataFileMeta, even if there is no column id
in orc, we can do schema evolution currently.
> Schema evolution for data file reading
> --------------------------------------
>
> Key: FLINK-27846
> URL: https://issues.apache.org/jira/browse/FLINK-27846
> Project: Flink
> Issue Type: Sub-task
> Components: Table Store
> Reporter: Jingsong Lee
> Priority: Minor
> Fix For: table-store-0.3.0
>
>
> For file reads, we need to.
> - Adjust the correspondence of specific fields
> - If there is a type evolution, we need to upgrade the corresponding data
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