kazdy commented on PR #7640: URL: https://github.com/apache/hudi/pull/7640#issuecomment-1380861070
Hi @the-other-tim-brown I'm interested in this functionality and have some questions, if I understand correctly the UUID will be the same for the same set of values in columns that it's based on? So this generator can't be used for generating a surrogate key (a standard practice in data warehousing) as key is derived from data? My understanding of keyless model is that record key is a surrogate key that's globally unique. I'm wondering if there's something that does not allow to create globally unique ids via the key generator interface (maybe virtual keys support)? At the same time in spite of this PR, what's the place of [UuidKeyGenerator](https://github.com/apache/hudi/blob/41a9986a7641f3232b1edd2a737fd4b7aa430dbf/hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/spark/sql/hudi/command/UuidKeyGenerator.scala)? Could it be used to generate surrogate keys that are globally unique? -- 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: commits-unsubscr...@hudi.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
