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Chapter 66. Database Physical Storage
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Chapter 66. Database Physical Storage

Table of Contents

66.1. Database File Layout
66.2. TOAST
66.2.1. Out-of-line, on-disk TOAST storage
66.2.2. Out-of-line, in-memory TOAST storage
66.3. Free Space Map
66.4. Visibility Map
66.5. The Initialization Fork
66.6. Database Page Layout

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

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65.3. Extensibility Home 66.1. Database File Layout