Comment by qianli_cs

I've read a similar series from Phil back in 2020: "Writing a SQL database from scratch in Go" https://notes.eatonphil.com/database-basics.html

The code is available on GitHub: https://github.com/eatonphil/gosql (it's specifically a PostgreSQL implementation in Go).

It's cool to build a database in 3000 lines, but for a real production-ready database you'll need testing. Would love to see some coverage on correctness and reliability tests. For example, SQLite has about 590 times more test code than the library itself. (https://www.sqlite.org/testing.html)