GUACAMOLE-189: Define guacd override columns for guacamole_connection table in main schema init script.

extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-postgresql/schema/001-create-schema.sql

@@ -49,6 +49,15 @@ CREATE TYPE guacamole_system_permission_type AS ENUM(
     'ADMINISTER'
 );
 
+--
+-- Guacamole proxy (guacd) encryption methods
+--
+
+CREATE TYPE guacamole_proxy_encryption_method AS ENUM(
+    'NONE',
+    'SSL'
+);
+
 --
 -- Table of connection groups. Each connection group has a name.
 --
@@ -97,6 +106,11 @@ CREATE TABLE guacamole_connection (
   max_connections          integer,
   max_connections_per_user integer,
 
+  -- Guacamole proxy (guacd) overrides
+  proxy_port              integer,
+  proxy_hostname          varchar(512),
+  proxy_encryption_method guacamole_proxy_encryption_method,
+
   PRIMARY KEY (connection_id),
 
   CONSTRAINT connection_name_parent