diff -nur user_activity.original/user_activity.install user_activity/user_activity.install
--- user_activity.original/user_activity.install	Mon Jul 16 14:54:40 2007
+++ user_activity/user_activity.install	Tue Aug 21 15:00:53 2007
@@ -15,6 +15,13 @@
       );
       break;
     case 'pgsql':
+      db_query("CREATE TABLE user_activity (
+                  uid int_unsigned NOT NULL PRIMARY KEY,
+                  pis integer NOT NULL,
+                  logins integer NOT NULL,
+                  since integer NOT NULL
+                );"
+      );
       break;
   }
 }