pg_waldump

displays WAL file contents in human-readable format

TLDR

Dump WAL file

$ pg_waldump [walfile]

Dump with record details

$ pg_waldump -r [record_type] [walfile]

Dump range

$ pg_waldump -s [start_lsn] -e [end_lsn] [walfile]

SYNOPSIS

pg_waldump [options] [startseg] [endseg]

DESCRIPTION

pg_waldump displays WAL file contents in human-readable format. Shows transaction details and operations. Useful for debugging and understanding WAL activity.

PARAMETERS

-p, --path dir

WAL directory.

-r, --rmgr name

Filter by resource manager.

-s, --start lsn

Start LSN.

-e, --end lsn

End LSN.

-n, --limit n

Limit records.

INSTALL

sudo dnf install postgresql17

sudo apk add postgresql17

sudo zypper install postgresql17