three-digit resource manager ID.
Names of this form will always be considered valid.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-R <replaceable>tblspc</replaceable>/<replaceable>db</replaceable>/<replaceable>rel</replaceable></option></term>
<term><option>--relation=<replaceable>tblspc</replaceable>/<replaceable>db</replaceable>/<replaceable>rel</replaceable></option></term>
<listitem>
<para>
Only display records that modify blocks in the given relation. The
relation is specified with tablespace OID, database OID, and relfilenode
separated by slashes, for example <literal>1234/12345/12345</literal>.
This is the same format used for relations in the program's output.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-s <replaceable>start</replaceable></option></term>
<term><option>--start=<replaceable>start</replaceable></option></term>
<listitem>
<para>
WAL location at which to start reading. The default is to start reading
the first valid WAL record found in the earliest file found.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-t <replaceable>timeline</replaceable></option></term>
<term><option>--timeline=<replaceable>timeline</replaceable></option></term>
<listitem>
<para>
Timeline from which to read WAL records. The default is to use the
value in <replaceable>startseg</replaceable>, if that is specified; otherwise, the
default is 1. The value can be specified in decimal or hexadecimal,
for example <literal>17</literal> or <literal>0x11</literal>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-V</option></term>
<term><option>--version</option></term>
<listitem>
<para>
Print the <application>pg_waldump</application> version and exit.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-w</option></term>
<term><option>--fullpage</option></term>
<listitem>
<para>
Only display records that include full page images.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-x <replaceable>xid</replaceable></option></term>
<term><option>--xid=<replaceable>xid</replaceable></option></term>
<listitem>
<para>
Only display records marked with the given transaction ID.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-z</option></term>
<term><option>--stats[=record]</option></term>
<listitem>
<para>
Display summary statistics (number and size of records and
full-page images) instead of individual records. Optionally
generate statistics per-record instead of per-rmgr.
</para>
<para>
If <application>pg_waldump</application> is terminated by signal
<systemitem>SIGINT</systemitem>
(<keycombo action="simul"><keycap>Control</keycap><keycap>C</keycap></keycombo>),
the summary of the statistics computed is displayed up to the
termination point. This operation is not supported on
<productname>Windows</productname>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--save-fullpage=<replaceable>save_path</replaceable></option></term>
<listitem>
<para>
Save full page images found in the WAL records to the
<replaceable>save_path</replaceable> directory. The images saved
are subject to the same