As someone working with datastore/firestore in a product first created around 10 years ago I wish you could have been there at the time. Running a migration to

As someone working with datastore/firestore in a product first created around 10 years ago I wish you could have been there at the time. Running a migration to add a boolean field to all existing documents of a certain type took ~40 hours. Funny thing is we are now migrating stuff out of datastore (and new stuff is not in datastore to begin with) into an RDBMS, but we are doing it microservice style with each microservice having its own separate database. So relationships are now cross-services concerns... Not that having EVERYTHING in a single DB is the best approach always, but IMO we should default to keep everything in one single DB.