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Add stats_reset to pg_stat_user_functions

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It is possible to call pg_stat_reset_single_function_counters() for a
single function, but the reset time was missing the system view showing
its statistics.  Like all the fields of pg_stat_user_functions, the GUC
track_functions needs to be enabled to show the statistics about
function executions.

Bump catalog version.
Bump PGSTAT_FILE_FORMAT_ID, as a result of the new field added to
PgStat_StatFuncEntry.

Author: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Discussion: https://postgr.es/m/aONjnsaJSx-nEdfU@paquier.xyz
This commit is contained in:
Michael Paquier
2025-10-08 12:43:40 +09:00
parent 035b09131d
commit b71bae41a0
13 changed files with 90 additions and 8 deletions
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9
doc/src/sgml/monitoring.sgml
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@@ -4736,6 +4736,15 @@ description | Waiting for a newly initialized WAL file to reach durable storage
other functions called by it, in milliseconds
</para></entry>
</row>
<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>
</tbody>
</tgroup>
</table>