<structname>pg_stat_database_conflicts</structname></link> for details.)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>temp_files</structfield> <type>bigint</type>
      </para>
      <para>
       Number of temporary files created by queries in this database.
       All temporary files are counted, regardless of why the temporary file
       was created (e.g., sorting or hashing), and regardless of the
       <xref linkend="guc-log-temp-files"/> setting.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>temp_bytes</structfield> <type>bigint</type>
      </para>
      <para>
       Total amount of data written to temporary files by queries in
       this database. All temporary files are counted, regardless of why
       the temporary file was created, and
       regardless of the <xref linkend="guc-log-temp-files"/> setting.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>deadlocks</structfield> <type>bigint</type>
      </para>
      <para>
       Number of deadlocks detected in this database
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>checksum_failures</structfield> <type>bigint</type>
      </para>
      <para>
       Number of data page checksum failures detected in this
       database (or on a shared object), or NULL if data checksums are
       disabled.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>checksum_last_failure</structfield> <type>timestamp with time zone</type>
      </para>
      <para>
       Time at which the last data page checksum failure was detected in
       this database (or on a shared object), or NULL if data checksums are
       disabled.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>blk_read_time</structfield> <type>double precision</type>
      </para>
      <para>
       Time spent reading data file blocks by backends in this database,
       in milliseconds (if <xref linkend="guc-track-io-timing"/> is enabled,
       otherwise zero)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>blk_write_time</structfield> <type>double precision</type>
      </para>
      <para>
       Time spent writing data file blocks by backends in this database,
       in milliseconds (if <xref linkend="guc-track-io-timing"/> is enabled,
       otherwise zero)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>session_time</structfield> <type>double precision</type>
      </para>
      <para>
       Time spent by database sessions in this database, in milliseconds
       (note that statistics are only updated when the state of a session
       changes, so if sessions have been idle for a long time, this idle time
       won't be included)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>active_time</structfield> <type>double precision</type>
      </para>
      <para>
       Time spent executing SQL statements in this database, in milliseconds
       (this corresponds to the states <literal>active</literal> and
       <literal>fastpath function call</literal> in
       <link linkend="monitoring-pg-stat-activity-view">
       <structname>pg_stat_activity</structname></link>)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>idle_in_transaction_time</structfield>