role="catalog_table_entry"><para role="column_definition">
       <structfield>last_msg_receipt_time</structfield> <type>timestamp with time zone</type>
      </para>
      <para>
       Receipt time of last message received from origin WAL sender
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>latest_end_lsn</structfield> <type>pg_lsn</type>
      </para>
      <para>
       Last write-ahead log location reported to origin WAL sender
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>latest_end_time</structfield> <type>timestamp with time zone</type>
      </para>
      <para>
       Time of last write-ahead log location reported to origin WAL sender
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>slot_name</structfield> <type>text</type>
      </para>
      <para>
       Replication slot name used by this WAL receiver
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>sender_host</structfield> <type>text</type>
      </para>
      <para>
       Host of the <productname>PostgreSQL</productname> instance
       this WAL receiver is connected to. This can be a host name,
       an IP address, or a directory path if the connection is via
       Unix socket.  (The path case can be distinguished because it
       will always be an absolute path, beginning with <literal>/</literal>.)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>sender_port</structfield> <type>integer</type>
      </para>
      <para>
       Port number of the <productname>PostgreSQL</productname> instance
       this WAL receiver is connected to.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>conninfo</structfield> <type>text</type>
      </para>
      <para>
       Connection string used by this WAL receiver,
       with security-sensitive fields obfuscated.
      </para></entry>
     </row>
    </tbody>
   </tgroup>
  </table>

 </sect2>

 <sect2 id="monitoring-pg-stat-recovery-prefetch">
  <title><structname>pg_stat_recovery_prefetch</structname></title>

  <indexterm>
   <primary>pg_stat_recovery_prefetch</primary>
  </indexterm>

  <para>
   The <structname>pg_stat_recovery_prefetch</structname> view will contain
   only one row.  The columns <structfield>wal_distance</structfield>,
   <structfield>block_distance</structfield> and
   <structfield>io_depth</structfield> show current values, and the
   other columns show cumulative counters that can be reset
   with the <function>pg_stat_reset_shared</function> function.
  </para>

  <table id="pg-stat-recovery-prefetch-view" xreflabel="pg_stat_recovery_prefetch">
   <title><structname>pg_stat_recovery_prefetch</structname> View</title>
   <tgroup cols="1">
    <thead>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       Column Type
      </para>
      <para>
       Description
      </para></entry>
     </row>
    </thead>

    <tbody>
     <row>
      <entry role="catalog_table_entry">
       <para role="column_definition">
        <structfield>stats_reset</structfield> <type>timestamp with time zone</type>
       </para>
       <para>
        Time at which these statistics were last reset
       </para>
      </entry>
     </row>

     <row>
      <entry role="catalog_table_entry">
       <para role="column_definition">
        <structfield>prefetch</structfield> <type>bigint</type>
       </para>
       <para>
        Number of blocks prefetched because they were not in the buffer pool
       </para>
      </entry>
     </row>

     <row>