@@ -369,6 +369,45 @@ doc/src/sgml/ref/initdb.sgml
369369 </variablelist>
370370 </para>
371371
372+ <para>
373+ Other options for testing 64-bit XID:
374+
375+ <variablelist>
376+ <varlistentry>
377+ <term><option>-m <replaceable class="parameter">START_MX_ID</replaceable></option></term>
378+ <term><option>--multixact-id=<replaceable class="parameter">START_MX_ID</replaceable></option></term>
379+ <listitem>
380+ <para>
381+ Specifies a start multixact id value in the hex format for new db instance to test 64-bit xids,
382+ default value is <literal>0</literal>.
383+ </para>
384+ </listitem>
385+ </varlistentry>
386+
387+ <varlistentry>
388+ <term><option>-o <replaceable class="parameter">START_MX_OFFSET</replaceable></option></term>
389+ <term><option>--multixact-offset=<replaceable class="parameter">START_MX_OFFSET</replaceable></option></term>
390+ <listitem>
391+ <para>
392+ Specifies a start multixact offset value in the decimal format for new db instance to test 64-bit xids,
393+ default value is <literal>0</literal>.
394+ </para>
395+ </listitem>
396+ </varlistentry>
397+
398+ <varlistentry>
399+ <term><option>-x <replaceable class="parameter">START_XID</replaceable></option></term>
400+ <term><option>--xid=<replaceable class="parameter">START_XID</replaceable></option></term>
401+ <listitem>
402+ <para>
403+ Specifies a start xid value in the hex format for new db instance to test 64-bit xids,
404+ default value is <literal>0</literal>.
405+ </para>
406+ </listitem>
407+ </varlistentry>
408+ </variablelist>
409+ </para>
410+
372411 <para>
373412 Other options:
374413
