Yes, the Postgresql source and associated docs. It's a well-structured code base that is easy enough to dive into, if you don't try to understand the whole thin

Yes, the Postgresql source and associated docs. It's a well-structured code base that is easy enough to dive into, if you don't try to understand the whole thing at once. I'm slowly reading it in bits and pieces. Here's a Github mirror so you can browse around: https://github.com/postgres/postgres https://github.com/postgres/postgres Note that the offical repo is at git.postgresql.org.