Why We Replaced PostgreSQL with Couchbase (And Lived to Tell the Tale)
A tale of migration, courage, and very large JSON documents.
It started with a simple question: "What if our database could store documents natively instead of forcing everything into rows and columns like it's 1985?"
Three months later, we'd migrated 2.3 million records from PostgreSQL to Couchbase. Our DBA cried. Our ops team sent us a fruit basket. Our CEO asked "what's a Couchbase?" for the fourteenth time.
The truth is, moving from a relational database to a document store is like switching from a filing cabinet to a magical bag that holds everything and finds it instantly. Sure, you lose the satisfying thunk of a drawer closing, but you gain the ability to store a beer's entire recipe, tasting notes, brewery info, and customer reviews in a single document.
Our queries went from 200ms to 3ms. Our schema migrations went from "everyone hold your breath" to "just add the field, it's JSON." Our developers went from writing SQL JOINs across 7 tables to writing N1QL that actually makes sense.
Would we do it again? Absolutely. Would we warn others about the three weeks where nothing worked? Also absolutely.