Added supported array to pgsql driver

lib/Doctrine/Connection/Pgsql.php

@@ -39,6 +39,26 @@ class Doctrine_Connection_Pgsql extends Doctrine_Connection_Common {
      */
     public function __construct(Doctrine_Manager $manager, PDO $pdo) {
         // initialize all driver options
+        $this->supported = array(
+                          'sequences'               => true,
+                          'indexes'                 => true,
+                          'affected_rows'           => true,
+                          'summary_functions'       => true,
+                          'order_by_text'           => true,
+                          'transactions'            => true,
+                          'savepoints'              => true,
+                          'current_id'              => true,
+                          'limit_queries'           => true,
+                          'LOBs'                    => true,
+                          'replace'                 => 'emulated',
+                          'sub_selects'             => true,
+                          'auto_increment'          => 'emulated',
+                          'primary_key'             => true,
+                          'result_introspection'    => true,
+                          'prepared_statements'     => true,
+                          'identifier_quoting'      => true,
+                          'pattern_escaping'        => true,
+                          );
 
         parent::__construct($manager, $pdo);
     }