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pg_walsummary — Print contents of WAL summary files. More information: <https://www.postgresql.org/docs/current/app-

Submitted by: @import:tldr-pages·Mar 2, 2026·

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summarycommandcontentspg_walsummaryfileswalcliprint

Problem

How to use the pg_walsummary command: Print contents of WAL summary files. More information: <https://www.postgresql.org/docs/current/app-pgwalsummary.html>.

Solution

pg_walsummary — Print contents of WAL summary files. More information: <https://www.postgresql.org/docs/current/app-pgwalsummary.html>.

Convert a WAL summary file to text:

pg_walsummary {{path/to/file}}

Print one line per individual modified block (rather than ranges):

pg_walsummary {{[-i|--individual]}} {{path/to/file}}

Suppress normal output (only errors):

pg_walsummary {{[-q|--quiet]}} {{path/to/file}}

Code Snippets

Convert a WAL summary file to text

pg_walsummary {{path/to/file}}

Print one line per individual modified block (rather than ranges)

pg_walsummary {{[-i|--individual]}} {{path/to/file}}

Suppress normal output (only errors)

pg_walsummary {{[-q|--quiet]}} {{path/to/file}}

Context

tldr-pages: common/pg_walsummary

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