<variablelist>
<varlistentry>
<term>
+ XLogRecPtr (F)
+ </term>
+ <listitem>
+ <para>
+ <variablelist>
+ <varlistentry>
+ <term>
+ Byte1('l')
+ </term>
+ <listitem>
+ <para>
+ Identifies the message as an acknowledgment of replication.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>
+ Byte8
+ </term>
+ <listitem>
+ <para>
+ The end of the WAL data replicated to the standby, given in
+ XLogRecPtr format.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+
+ <variablelist>
+ <varlistentry>
+ <term>
XLogData (B)
</term>
<listitem>