eyjian commented on issue #8757: URL: https://github.com/apache/hudi/issues/8757#issuecomment-1554076777
> You have to use upsert only to use partial update. So with Spark sql you must use merge into or update as Insert will act as insert operationType for which hudi doesn't guarantee uniqueness. [By default, if preCombineKey is provided, insert into use upsert as the type of write operation, otherwise use insert](https://hudi.apache.org/cn/docs/quick-start-guide)，event adding "hoodie.datasource.write.operation = 'upsert'" no effect. -- 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]
