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Historical version. PostgreSQL 8.3 reached end of support in February 2013. See the current version for supported releases.
PostgreSQL 8.3.23 Documentation
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Chapter 53. Database Physical Storage

Table of Contents
53.1. Database File Layout
53.2. TOAST
53.3. Database Page Layout

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

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Examples Up Database File Layout

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