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by spacemanmatt 4446 days ago
Please enjoy the source code of PostgreSQL (any version, but latest is generally recommended) core. It is very well factored, and typically also very well commented. This community cares a great deal about code quality, because they are so clear on the relation between readability, diagnosability, and execution correctness.
1 comments

I second this.

With most large and modular systems in C (think Linux kernel), you're completely lost and the internal architecture is opaque.

PostgreSQL's source code is a marvel of clarity.