[bogomipz]

>"I agree with this. B-trees vs hash indices, I/O hierarchy, process model, etc."

I'm familiar with all of the concepts in the context of databases except "process model." Is this the same as data model? Could you elaborate if not?

[linl]

There are several types of process models that's suitable for a DBMS: 1 process per DBMS worker, 1 thread per DBMS worker, a lightweight thread pool, a process pool, etc.

Hellerstein, Stonebraker and Hamilton (2007) is a great introduction on this.