diff --git a/core/Driver/SQL/PostgreSQL.class.php b/core/Driver/SQL/PostgreSQL.class.php
index 6836842..e3e8794 100644
--- a/core/Driver/SQL/PostgreSQL.class.php
+++ b/core/Driver/SQL/PostgreSQL.class.php
@@ -68,7 +68,7 @@ class PostgreSQL extends SQL {
     if(is_null($this->connection))
       return;
 
-    pg_close($this->connection);
+    @pg_close($this->connection);
   }
 
   public function getLastError() {
@@ -99,6 +99,9 @@ class PostgreSQL extends SQL {
           case Parameter::TYPE_DATE_TIME:
             $value = $value->format("Y-m-d H:i:s");
             break;
+          case Parameter::TYPE_ARRAY:
+            $value = json_encode($value);
+            break;
           default:
             break;
         }