Not exactly. To use EventReduce you must have a changestream out of all writes to your data int the correct order. You can do that by wrapping a frontend over y

Not exactly. To use EventReduce you must have a changestream out of all writes to your data int the correct order. You can do that by wrapping a frontend over your database. But easier you do that by using a database that already provides a changestream like couchdb, Postgres, mongodb and so on.