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authorPeter Geoghegan2023-01-25 22:31:41 +0000
committerPeter Geoghegan2023-01-25 22:31:41 +0000
commit1a8e72bff781e869e5b5dc76fa18e3ae08181656 (patch)
tree222ed10b20fcbb08ccd5c98f9aeaa9a597566bae
parent4d417992613949af35530b4e8e83670c4e67e1b2 (diff)
Doc: update VACUUM VERBOSE freezing tip.
VACUUM VERBOSE/autovacuuming logging have reported on the number of pages frozen by VACUUM since commit d977ffd9 added that capability. This information is directly related to relfrozenxid advancement, so update an older tip from the documentation about how relfrozenxid is reported on by the same instrumentation code. Now the tip directly mentions newly frozen pages, too.
-rw-r--r--doc/src/sgml/maintenance.sgml5
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/src/sgml/maintenance.sgml b/doc/src/sgml/maintenance.sgml
index 687b168cc56..bc21de30067 100644
--- a/doc/src/sgml/maintenance.sgml
+++ b/doc/src/sgml/maintenance.sgml
@@ -643,8 +643,9 @@ SELECT datname, age(datfrozenxid) FROM pg_database;
parameter is specified, <command>VACUUM</command> prints various
statistics about the table. This includes information about how
<structfield>relfrozenxid</structfield> and
- <structfield>relminmxid</structfield> advanced. The same details appear
- in the server log when autovacuum logging (controlled by <xref
+ <structfield>relminmxid</structfield> advanced, and the number of
+ newly frozen pages. The same details appear in the server log when
+ autovacuum logging (controlled by <xref
linkend="guc-log-autovacuum-min-duration"/>) reports on a
<command>VACUUM</command> operation executed by autovacuum.
</para>