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Using CockroachDB as a Backend for OSS MongoDB Alternative FerretDB

Motivation

Once I completed my first article, I realized there are a lot of possibilities exposed by proxying MongoDB collections through FerretDB backed by CockroachDB. CockroachDB has unique data domiciling capabilities available through multi-region abstractions, inverted and partial indexes, computed columns, and of course strong consistency. Today, we’re going to restore a MongoDB collection into CockroachDB via FerretDB and expand on our previous learnings.