↑↓ select↵ open⌫ change scopeOpen full search

PG.CENTER connects PostgreSQL documentation, reference, and ecosystem knowledge. Maintained by Pigsty.

Supported versions: Current (18) / 17 / 16 / 15 / 14
Development versions: 19 / 20devel
Unsupported versions: 13 / 12 / 11 / 10 / 9.6 / 9.5 / 9.4 / 9.3 / 9.2 / 9.1 / 9.0 / 8.4 / 8.3 / 8.2 / 8.1 / 8.0 / 7.2 / 7.1
Historical version. PostgreSQL 9.0 has reached end of support. 2015-10-08. See the current manual.

Chapter 54. Database Physical Storage

Table of Contents
54.1. Database File Layout
54.2. TOAST
54.3. Free Space Map
54.4. Visibility Map
54.5. Database Page Layout

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

Report a documentation issue

Read the upstream documentation. For corrections, first check the current manual.