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commit    488ace333584d345b4bf76992e81b0b7ef52cbe0
Author:   Michael Paquier <michael@paquier.xyz>
Date:     Wed Mar 22 09:32:09 2023 +0000
First released in: 16.0, 11.20, 12.15, 13.11, 14.8, 15.3

    doc: Add description of some missing monitoring functions
    
    This commit adds some documentation about two monitoring functions:
    - pg_stat_get_xact_blocks_fetched()
    - pg_stat_get_xact_blocks_hit()
    
    The description of these functions has been removed in ddfc2d9, later
    simplified by 5f2b089, assuming that all the functions whose
    descriptions were removed are used in system views.  Unfortunately, some
    of them were are not used in any system views, so they lacked
    documentation.
    
    This gap exists in the docs for a long time, so backpatch all the way
    down.
    
    Reported-by: Michael Paquier
    Author: Bertrand Drouvot
    Reviewed-by: Kyotaro Horiguchi
    Discussion: https://postgr.es/m/ZBeeH5UoNkTPrwHO@paquier.xyz
    Backpatch-through: 11


 doc/src/sgml/monitoring.sgml | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index b2a27c8c7fc..f2d99b5c117 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -3291,6 +3291,24 @@ SELECT pid, wait_event_type, wait_event FROM pg_stat_activity WHERE wait_event i
        Discard the current statistics snapshot
       </entry>
      </row>
+     
+     <row>
+      <entry><literal><function>pg_stat_get_xact_blocks_fetched</function>(oid)</literal><indexterm><primary>pg_stat_get_xact_blocks_fetched</primary></indexterm></entry>
+      <entry><type>bigint</type></entry>
+      <entry>
+       Returns the number of buffers fetched for table or index, in the current
+       transaction.
+      </entry>
+     </row>
+
+     <row>
+      <entry><literal><function>pg_stat_get_xact_blocks_hit</function>(oid)</literal><indexterm><primary>pg_stat_get_xact_blocks_hit</primary></indexterm></entry>
+      <entry><type>bigint</type></entry>
+      <entry>
+       Returns the number of buffer hits for table or index, in the current
+       transaction.
+      </entry>
+     </row>
 
      <row>
       <entry><literal><function>pg_stat_reset()</function></literal><indexterm><primary>pg_stat_reset</primary></indexterm></entry>


[parent: fc63e6ba8670]