Homebrew install specific version of formula?

Question

How do I install a specific version of a formula in homebrew? For example, postgresql-8.4.4 instead of the latest 9.0.

Answer 1

I've discovered a better alternative solution then the other complex solutions.

brew install https://raw.github.com/Homebrew/homebrew-versions/master/postgresql8.rb

This will download and install PostgreSQL 8.4.8

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I found this solution by starting to follow the steps of searching the repo and a comment in the repo .

After a little research found that someone has a collection of rare formulars to brew up with.

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If your looking for MySQL 5.1.x, give this a try.

brew install https://raw.github.com/Homebrew/homebrew-versions/master/mysql51.rb