count distinct callid for presentity count

kamailio/db_queries_kazoo.cfg

@@ -2,7 +2,7 @@
 #!substdef "!KZQ_CHECK_MEDIA_SERVER_INSERT!insert into dispatcher (setid, destination, flags, attrs, description) select \$var(SetId), \"\$var(MediaUrl)\", \$var(flags), \"\$var(attrs)\", \"added by nodes role\"  where not exists(select * from dispatcher where destination = \"\$var(MediaUrl)\")!g"
 #!substdef "!KZQ_COUNT_ALL_SUBSCRIBERS!select a.event, count(distinct watcher_username || \"@\" || watcher_domain) count_unique, count(*) count from event_list a, active_watchers b where b.event = a.event group by a.event!g"
 #!substdef "!KZQ_COUNT_PRESENTITIES!select event, (select count(*) from presentity b where username = \"\$(var(payload){kz.json,From}{uri.user})\" and domain = \"\$(var(payload){kz.json,From}{uri.domain})\" and b.event = a.event) count from event_list a!g"
-#!substdef "!KZQ_COUNT_SUBSCRIBERS!select event, (select count(*) from active_watchers b where presentity_uri = \"\$var(presentity)\" and b.event = a.event) count from event_list a union select \"self\", count(*) from presentities where presentity_uri = \"\$var(presentity)\"!g"
+#!substdef "!KZQ_COUNT_SUBSCRIBERS!select event, (select count(*) from active_watchers b where presentity_uri = \"\$var(presentity)\" and b.event = a.event) count from event_list a union select \"self\", count(distinct callid) from presentities where presentity_uri = \"\$var(presentity)\"!g"
 #!substdef "!KZQ_EVENT_PRESENCE_RESET_DELETE!delete from presentity where domain=\"\$(kzE{kz.json,Realm})\" and username = \"\$(kzE{kz.json,Username})\"!g"
 #!substdef "!KZQ_HANDLE_NEW_SUBSCRIBE_DELETE1!delete from active_watchers where callid = \"\$ci\"!g"
 #!substdef "!KZQ_HANDLE_NEW_SUBSCRIBE_DELETE2!delete from active_watchers where watcher_username=\"\$fU\" and presentity_uri=\"\$var(presentity_uri)\" and to_user=\"\$tU\" and watcher_domain=\"\$fd\" and event=\"\$hdr(Event)\"!g"