pgtestdb's Template Cloning Approach to Testing is Fast

pgtestdb's Template Cloning Approach to Testing is Fast

I explored Peter Downs' pgtestdb, a Go/Postgres testing package leveraging template databases for rapid setup. While cloning databases proved surprisingly fast at roughly 100ms, my River project's schema-based method with reuse optimization remains significantly quicker overall. I recommend pgtestdb for end-to-end testing scenarios, though schema pooling offers superior performance for large test suites.

100 ms to bootstrap a test database is pretty fast, but if you're building a full application that's going to have 10,000 tests, ideally you want a test setup on the order of 10x faster.

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2026-07-30