CockroachDB is implemented as a distributed key-value store over a monolithic sorted map, to make it easy for large tables and indexes to function. While CockroachDB is a distributed SQL database, developers treat it as a relational database because it uses the same SQL syntax. But on an architecture level, CockroachDB’s architecture is different from a relational database architecture. In CockroachDB, every table is ordered lexicographically by key. So, when we store the data on the database, we are leveraging the key value store.

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