There is a discussion on Hive dev list about spinning Hive Metastore out as an independent top-level project. I am very much in favor of this proposal, because Calcite needs metadata, and I feel that the Metastore could contain richer metadata if it were not solely controlled by the Hive project.
https://lists.apache.org/thread.html/5e75f45d60f0b819510814a126cfd3809dd24b1c7035a1c8c41b0c5c@%3Cdev.hive.apache.org%3E <https://lists.apache.org/thread.html/5e75f45d60f0b819510814a126cfd3809dd24b1c7035a1c8c41b0c5c@%3Cdev.hive.apache.org%3E> Julian
