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https://issues.apache.org/jira/browse/HUDI-1376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenning Ding updated HUDI-1376:
-------------------------------
    Summary: Drop metadata columns before Spark datasource processing   (was: 
Remove the schema of metadata columns in the commit files)

> Drop metadata columns before Spark datasource processing 
> ---------------------------------------------------------
>
>                 Key: HUDI-1376
>                 URL: https://issues.apache.org/jira/browse/HUDI-1376
>             Project: Apache Hudi
>          Issue Type: Bug
>            Reporter: Wenning Ding
>            Assignee: Wenning Ding
>            Priority: Major
>              Labels: pull-request-available
>
> When updating a Hudi table through Spark datasource, it will use the schema 
> of the input dataframe as the schema stored in the commit files. Thus, when 
> upserted with rows containing metadata columns, the upsert commit file will 
> store the metadata columns schema in the commit file which is unnecessary for 
> common cases. And also this will bring an issue for bootstrap table.
> Since the schema of metadata columns is always the same, we should remove the 
> schema of metadata columns in the commit file for any insert/upsert/... 
> action.



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