1. Setup
  2. Code Structure
  4. Data Management: Storage & Access
  5. Heap Access
  6. Catalog
  7. Indexes Access
  9. Transactions & Concurrency Control
  10. MVCC
  11. WAL
  13. Query Execution & Optimization
  15. Extensions
  16. pgvector
  17. pg_duckdb
  20. Reference