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| -rw-r--r-- | doc/src/sgml/monitoring.sgml | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml index dc4fc29466d..d5f0fb7ba7c 100644 --- a/doc/src/sgml/monitoring.sgml +++ b/doc/src/sgml/monitoring.sgml @@ -1287,6 +1287,10 @@ description | Waiting for a newly initialized WAL file to reach durable storage <para> This standby's <literal>xmin</literal> horizon reported by <xref linkend="guc-hot-standby-feedback"/>. + This field will be null if a replication slot is used (in this case, + the standby's <literal>xmin</literal> is shown in + <link linkend="view-pg-replication-slots">pg_replication_slots</link>) + or if <varname>hot_standby_feedback</varname> is disabled. </para></entry> </row> |