document changes related to ITS#5074

diff --git a/doc/man/man5/slapo-pcache.5 b/doc/man/man5/slapo-pcache.5
index b9d7c4ce81eac4478f607f91e52e78b4bad137aa..f2541f06f71ba2af352c1e18fb6e461e3e597e96 100644 (file)
--- a/doc/man/man5/slapo-pcache.5
+++ b/doc/man/man5/slapo-pcache.5
@@ -76,6 +76,11 @@ Specify the maximum number of queries to cache. The default is 10000.
 Used to associate a set of attributes <attrs..> with an <index>. Each attribute
 set is associated with an integer from 0 to <numattrsets>-1. These indices are
 used by the \fBproxytemplate\fP directive to define cacheable templates. 
+A set of attributes cannot be empty.  A set of attributes can contain the
+special attributes "*" (all user attributes), "+" (all operational attributes)
+or both; in the latter case, any other attribute is redundant and should
+be avoided for clarity.  A set of attributes can contain "1.1" as the only
+attribute; in this case, only the presence of the entries is cached.
 
 .TP
 .B proxytemplate <template_string> <attrset_index> <ttl> [<negttl>]