shared object containing the output plugin this logical slot is using, or null for physical slots.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>slot_type</structfield> <type>text</type>
      </para>
      <para>
       The slot type: <literal>physical</literal> or <literal>logical</literal>
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>datoid</structfield> <type>oid</type>
       (references <link linkend="catalog-pg-database"><structname>pg_database</structname></link>.<structfield>oid</structfield>)
      </para>
      <para>
       The OID of the database this slot is associated with, or
       null. Only logical slots have an associated database.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>database</structfield> <type>name</type>
       (references <link linkend="catalog-pg-database"><structname>pg_database</structname></link>.<structfield>datname</structfield>)
      </para>
      <para>
       The name of the database this slot is associated with, or
       null. Only logical slots have an associated database.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>temporary</structfield> <type>bool</type>
      </para>
      <para>
       True if this is a temporary replication slot. Temporary slots are
       not saved to disk and are automatically dropped on error or when
       the session has finished.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>active</structfield> <type>bool</type>
      </para>
      <para>
       True if this slot is currently being streamed
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>active_pid</structfield> <type>int4</type>
      </para>
      <para>
       The process ID of the session streaming data for this slot.
       <literal>NULL</literal> if inactive.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>xmin</structfield> <type>xid</type>
      </para>
      <para>
       The oldest transaction that this slot needs the database to
       retain.  <literal>VACUUM</literal> cannot remove tuples deleted
       by any later transaction.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>catalog_xmin</structfield> <type>xid</type>
      </para>
      <para>
       The oldest transaction affecting the system catalogs that this
       slot needs the database to retain.  <literal>VACUUM</literal> cannot
       remove catalog tuples deleted by any later transaction.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>restart_lsn</structfield> <type>pg_lsn</type>
      </para>
      <para>
       The address (<literal>LSN</literal>) of oldest WAL which still
       might be required by the consumer of this slot and thus won't be
       automatically removed during checkpoints unless this LSN
       gets behind more than <xref linkend="guc-max-slot-wal-keep-size"/>
       from the current LSN.  <literal>NULL</literal>
       if the <literal>LSN</literal> of this slot has never been reserved.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>confirmed_flush_lsn</structfield> <type>pg_lsn</type>
      </para>
      <para>
       The address (<literal>LSN</literal>) up to which the logical
       slot's consumer has confirmed