--- mqtt/etc/mqtt_pub.sql	2011/11/24 13:02:01	1.1.2.2
+++ mqtt/etc/mqtt_pub.sql	2011/11/24 13:57:11	1.1.2.4
@@ -3,7 +3,7 @@ BEGIN TRANSACTION;
 CREATE TABLE Online (
 Username varchar(64) not null,
 RemoteHost varchar(64) not null,
-RepotePort smallint not null,
+RemotePort smallint unsigned not null,
 Stamp timestamp);
 CREATE TABLE Topics (
 id integer not null primary key,
@@ -16,6 +16,7 @@ PubHost varchar(64) not null,
 Stamp timestamp);
 CREATE INDEX RemoteHost on Online (RemoteHost);
 CREATE INDEX Username on Online (Username);
+CREATE UNIQUE INDEX User on Online (Username, RemoteHost);
 CREATE INDEX PubDate on Topics (PubDate);
 CREATE INDEX PubHost on Topics (PubHost);
 CREATE INDEX PubUser on Topics (PubUser);