Hi geenat, CockroachDB is an awesome database! SurrealDB and CockroachDB are quite different, in that CockroachDB is effectively a highly-available distributed PostgreSQL database (aiming at that similar functionality), while SurrealDB is aiming to merge the relational / nosql / document / and graph databases together. Hence the functionality is quite different. To make SurrealDB distributed we have built it on top of TiKV (on a side note TiDB which is built by the creators of TiKV is more of a competitor to CockroachDB than SurrealDB is).

We will definitely in due course provide some documentation and comparisons with many of the other databases out there, and also we intend to do benchmarking with the other databases as soon as we have implemented a few of the performance issues that we know about (https://github.com/surrealdb/surrealdb/labels/performance)!