diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/config.sgml | 8 | ||||
| -rw-r--r-- | doc/src/sgml/monitoring.sgml | 39 |
2 files changed, 44 insertions, 3 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 24bd504c213..fbdd6ce5740 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -8403,9 +8403,11 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv; displayed in <link linkend="monitoring-pg-stat-database-view"> <structname>pg_stat_database</structname></link>, <link linkend="monitoring-pg-stat-io-view"> - <structname>pg_stat_io</structname></link>, in the output of - <xref linkend="sql-explain"/> when the <literal>BUFFERS</literal> option - is used, in the output of <xref linkend="sql-vacuum"/> when + <structname>pg_stat_io</structname></link>, in the output of the + <link linkend="pg-stat-get-backend-io"> + <function>pg_stat_get_backend_io()</function></link> function, in the + output of <xref linkend="sql-explain"/> when the <literal>BUFFERS</literal> + option is used, in the output of <xref linkend="sql-vacuum"/> when the <literal>VERBOSE</literal> option is used, by autovacuum for auto-vacuums and auto-analyzes, when <xref linkend="guc-log-autovacuum-min-duration"/> is set and by diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml index 840d7f81615..d0d176cc54f 100644 --- a/doc/src/sgml/monitoring.sgml +++ b/doc/src/sgml/monitoring.sgml @@ -4791,6 +4791,27 @@ description | Waiting for a newly initialized WAL file to reach durable storage </row> <row> + <entry id="pg-stat-get-backend-io" role="func_table_entry"><para role="func_signature"> + <indexterm> + <primary>pg_stat_get_backend_io</primary> + </indexterm> + <function>pg_stat_get_backend_io</function> ( <type>integer</type> ) + <returnvalue>setof record</returnvalue> + </para> + <para> + Returns I/O statistics about the backend with the specified + process ID. The output fields are exactly the same as the ones in the + <structname>pg_stat_io</structname> view. + </para> + <para> + The function does not return I/O statistics for the checkpointer, + the background writer, the startup process and the autovacuum launcher + as they are already visible in the <structname>pg_stat_io</structname> + view and there is only one of each. + </para></entry> + </row> + + <row> <entry role="func_table_entry"><para role="func_signature"> <indexterm> <primary>pg_stat_get_activity</primary> @@ -4974,6 +4995,24 @@ description | Waiting for a newly initialized WAL file to reach durable storage <row> <entry role="func_table_entry"><para role="func_signature"> <indexterm> + <primary>pg_stat_reset_backend_stats</primary> + </indexterm> + <function>pg_stat_reset_backend_stats</function> ( <type>integer</type> ) + <returnvalue>void</returnvalue> + </para> + <para> + Resets statistics for a single backend with the specified process ID + to zero. + </para> + <para> + This function is restricted to superusers by default, but other users + can be granted EXECUTE to run the function. + </para></entry> + </row> + + <row> + <entry role="func_table_entry"><para role="func_signature"> + <indexterm> <primary>pg_stat_reset_single_function_counters</primary> </indexterm> <function>pg_stat_reset_single_function_counters</function> ( <type>oid</type> ) |