[nostalgeek]

> There is literature legion on the implementation of the database that would assuage you, should you concern yourself with reading it. I don't think you need to. Trust that many many smart people have engineered many many decades of excellent software.

can you recommend some material?

[pg314]

"Architecture of a Database System" by Hellerstein, Stonebraker and Hamilton [1], gives a good overview. The source code and documentation of PostgreSQL is excellent if you want to dive deeper.

[1] http://db.cs.berkeley.edu/papers/fntdb07-architecture.pdf