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And if you need to run expensive migrations, use a template database.

https://www.postgresql.org/docs/current/manage-ag-templatedb...

While PostgreSQL templates allow to scaffold new databases (one per test-spec) quite fast, it's even faster to have a warmed up pool of databases ready: https://github.com/allaboutapps/integresql#background

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Oh that looks great, and very close to what I had in mind for the next upgrade of our in-house testing framework. Definitely going to give that a try soon. Thanks for posting it!

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