csteegz opened a new issue, #22729: URL: https://github.com/apache/beam/issues/22729
### What would you like to happen? One powerful tool of schemas is the `group` transform and the associated aggregate transforms. In #20022, schema options were introduced as a way to provide details to fields. As a user, I would like to be able to write `aggregateField` transforms in a way that allows me to create schema options programmatically based on the schema options of the input fields. This could be very useful for data provenance across transforms. For example, a user may want to indicate that a particular upstream dataset was used in the generation of the value of a particular field. Another use case would be to propagate that a particular schema field has been deprecated. ### Issue Priority Priority: 2 ### Issue Component Component: sdk-java-core -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
