OK, that goal makes sense, thanks for explaining. For what it's worth I'm pretty sure you can do this with postgres, tmpfs, and template databases — see my proj

OK, that goal makes sense, thanks for explaining. For what it's worth I'm pretty sure you can do this with postgres, tmpfs, and template databases — see my project, pgtestdb [0]. I haven't done a formal perf measurement, but each test would get a fresh and migrated database in about 20ms on my local machine. The setup described runs postgres in a container for convenience, but you could probably also just run a postgres binary and store the data on a memory-backed filesystem. [0] https://github.com/peterldowns/pgtestdb https://github.com/peterldowns/pgtestdb