# Basics of Postgres Internals

- [Pass-By-Datum](./pg-internal/datum.md)
- [Memory Contexts](./pg-internal/memory-context.md)
- [Varlena Types](./pg-internal/varlena.md)
- [`sigsetjmp` & `siglongjmp`](./pg-internal/setjmp-longjmp.md)
