Chapter 71. Database Physical Storage
Prev UpPart VII. InternalsHome Next

Chapter 71. Database Physical Storage

Table of Contents

71.1. Database File Layout
71.2. TOAST
71.2.1. Out-of-Line, On-Disk TOAST Storage
71.2.2. Out-of-Line, In-Memory TOAST Storage
71.3. Free Space Map
71.4. Visibility Map
71.5. The Initialization Fork
71.6. Database Page Layout
71.6.1. Table Row Layout
71.7. Heap-Only Tuples (HOT)

This chapter provides an overview of the physical storage format used by PostgreSQL databases.

Prev Up Next
70.2. Implementation Home 71.1. Database File Layout