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https://issues.apache.org/jira/browse/HUDI-741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17068589#comment-17068589
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Pratyaksh Sharma commented on HUDI-741:
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Hi [~pwason], I am already working with [~nishith29] to implement a
schema-service which will take care of all these cases. We will come up with an
RFC soon. Once we file all the tasks, then we all can work together to achieve
this.
> Fix Hoodie's schema evolution checks
> ------------------------------------
>
> Key: HUDI-741
> URL: https://issues.apache.org/jira/browse/HUDI-741
> Project: Apache Hudi (incubating)
> Issue Type: Bug
> Reporter: Prashant Wason
> Priority: Minor
> Original Estimate: 120h
> Remaining Estimate: 120h
>
> HUDI requires a Schema to be specified in HoodieWriteConfig and is used by
> the HoodieWriteClient to create the records. The schema is also saved in the
> data files (parquet format) and log files (avro format).
> Since a schema is required each time new data is ingested into a HUDI
> dataset, schema can be evolved over time. But HUDI should ensure that the
> evolved schema is compatible with the older schema.
> HUDI specific validation of schema evolution should ensure that a newer
> schema can be used for the dataset by checking that the data written using
> the old schema can be read using the new schema.
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