Hi everyone, I was wondering if we could expose an "instance_id" field in the top level `/<db>` (db_info) result. The value would be a uuid which is unique for every database instance. That is, if a database is deleted and re-created with the same name, it would have a different "instance_id". [*]
We'd get at least 2 benefits from it: 1) Replicator could eventually could be updated to checkpoint on the target only, and thus have a read-only access to the source. Currently we need to checkpoint on the source to account for the case when the source db has been recreated, so we maintain the checkpoint history on the source and the target. 2) User's code might want to know if it the database has been recreated, mostly to avoid mishaps when they continue performing requests against the db with the same, which now may have completely different data in it. What do we think, do we like this idea? Cheers, -Nick [*] Back in 1.x we had the "instance_start_time" field which does mostly same thing, but is based on time. In 2.x and 3.x we still emit that field and for compatibility and hard code it to "0". We could re-use that field, but I think since the idea is to make it a uuid and not a timestamp so it's name doesn't quite match and it would have a different format (64bits vs 128bits).
