doc: Mention pg_read_all_stats in description of track_activities

The description of track_activities mentioned that it is visible to
superusers and that the information related to the current session can
be seen, without telling about pg_read_all_stats.  Roles that are
granted the privileges of pg_read_all_stats can also see this
information, so mention it in the docs.

Author: Ian Barwick
Reviewed-by: Nathan Bossart
Discussion: https://postgr.es/m/CAB8KJ=jhPyYFu-A5r-ZGP+Ax715mUKsMxAGcEQ9Cx_mBAmrPow@mail.gmail.com
Backpatch-through: 10

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index e80534c68318e654576b3a3093bcfbbfe3ad1f69..b11dd11735c63b8f20dc710b4afa95d541cf78b8 100644 (file)
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -5835,7 +5835,8 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
         executing command of each session, along with the time when
         that command began execution. This parameter is on by
         default. Note that even when enabled, this information is not
-        visible to all users, only to superusers and the user owning
+        visible to all users, only to superusers, members of the
+        <literal>pg_read_all_stats</literal> role and the user owning
         the session being reported on, so it should not represent a
         security risk.
         Only superusers can change this setting.