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Chapter 65. Database Physical Storage
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Chapter 65. Database Physical Storage

Table of Contents

65.1. Database File Layout

65.2. TOAST

65.2.1. Out-of-line, on-disk TOAST storage
65.2.2. Out-of-line, in-memory TOAST storage

65.3. Free Space Map

65.4. Visibility Map

65.5. The Initialization Fork

65.6. Database Page Layout

This chapter provides an overview of the physical storage format used byPostgres Pro databases.

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64.2. Implementation	Home	65.1. Database File Layout

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