Chapter 28. Reliability and the Write-Ahead Log

Chapter 28. Reliability and the Write-Ahead Log
- Chapter 28. Reliability and the Write-Ahead Log
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October 15, 2026: PostgreSQL 19 RC 1 Released!

Supported Versions: () / 17 / 16 / 15 / 14

Development Versions: 19 / devel

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 / 7.4 / 7.3 / 7.2 / 7.1

Chapter 28. Reliability and the Write-Ahead Log

This chapter explains how to control the reliability of PostgreSQL, including details about the Write-Ahead Log.

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