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-rw-r--r--doc/src/sgml/maintenance.sgml5
1 files changed, 4 insertions, 1 deletions
diff --git a/doc/src/sgml/maintenance.sgml b/doc/src/sgml/maintenance.sgml
index 4b4acc6e03e..3aae2a53a1f 100644
--- a/doc/src/sgml/maintenance.sgml
+++ b/doc/src/sgml/maintenance.sgml
@@ -741,7 +741,10 @@ HINT: Stop the postmaster and vacuum that database in single-user mode.
careful aging management, storage cleanup, and wraparound handling.
There is a separate storage area which holds the list of members in
each multixact, which also uses a 32-bit counter and which must also
- be managed.
+ be managed. The system function
+ <function>pg_get_multixact_members()</function> described in
+ <xref linkend="functions-pg-snapshot"/> can be used to examine the
+ transaction IDs associated with a multixact ID.
</para>
<para>