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Chapter 67. Database Physical Storage
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Chapter 67. Database Physical Storage

Table of Contents

67.1. Database File Layout

67.2. TOAST

67.2.1. Out-of-line, on-disk TOAST storage
67.2.2. Out-of-line, in-memory TOAST storage

67.3. Free Space Map

67.4. Visibility Map

67.5. The Initialization Fork

67.6. Database Page Layout

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

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66.2. Implementation	Home	67.1. Database File Layout

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