databases 5 (Pt. 5) Postgres vs MySQL: Connections, Processes vs Threads Jul 26, 2026 (Pt. 4) Postgres vs MySQL: Page Splits, TOAST, and UUIDs Jul 26, 2026 (Pt. 3) Postgres vs MySQL: HOT Updates Jul 26, 2026 (Pt. 2) Postgres vs MySQL: MVCC + Vacuum vs Undo Log Jul 26, 2026 (Pt. 1) Postgres vs MySQL: Clustered Index vs Heap Jul 26, 2026