[zachmu]

Not a proxy in the traditional sense, no. go-mysql-server is a set of libraries that implement a SQL query engine and server in the abstract. When provided with a compatible database implementation using the provided interfaces, it becomes a MySQL compatible database server. Dolt [1] is the most complete implementation, but the in-memory database implementation the package ships with is suitable for testing.

We didn't extract go-mysql-server from Dolt. We found it sitting around as abandonware, adopted it, and used it to build Dolt's SQL engine on top of the existing storage engine and command line [2]. We decided to keep it a separate package, and implementation agnostic, in the hopes of getting contributions from other people building their own database implementations on top of it.

[1] https://github.com/dolthub/dolt [2] https://www.dolthub.com/blog/2020-05-04-adopting-go-mysql-se...

[jsteenb2]

Really excellent work! For the curious, would you all be creating an in-memory database implementation that is postgres compatible for the doltgres project?

[zachmu]

We are moving in that direction but it's not a primary goal at this point. Once we have more basic functionality working correctly in doltgres we will examine splitting off a separate package for it. The in memory implementation has a bunch of MySQL specific stuff in it right now and we're still learning what pieces need to be generalized to share code.