diff --git a/lib/Doctrine/Db/Event.php b/lib/Doctrine/Db/Event.php
index 8ca5c1bda..c18a8db1e 100644
--- a/lib/Doctrine/Db/Event.php
+++ b/lib/Doctrine/Db/Event.php
@@ -48,11 +48,14 @@ class Doctrine_Db_Event
 
     protected $endedMicrotime;
 
+
     public function __construct($invoker, $type, $query = null)
     {
         $this->invoker = $invoker;
         $this->type    = $type;
         $this->query   = $query;
+
+
     }
     public function getQuery()
     {
diff --git a/lib/Doctrine/Db/Profiler.php b/lib/Doctrine/Db/Profiler.php
index 8a99d5c7f..55b5f757d 100644
--- a/lib/Doctrine/Db/Profiler.php
+++ b/lib/Doctrine/Db/Profiler.php
@@ -30,7 +30,7 @@ Doctrine::autoload('Doctrine_Overloadable');
  * @since       1.0
  * @version     $Revision$
  */
-class Doctrine_Db_Profiler implements Doctrine_Overloadable
+class Doctrine_Db_Profiler extends Doctrine_Access implements Doctrine_Overloadable, IteratorAggregate
 {
     /**
      * @param array $listeners      an array containing all availible listeners
@@ -47,6 +47,21 @@ class Doctrine_Db_Profiler implements Doctrine_Overloadable
      * @param array $events         an array containing all listened events
      */
     private $events     = array();
+    /**
+     * constructor
+     */
+    public function __construct() {
+
+    }
+    /**
+     * setFilterQueryType
+     *
+     * @param integer $filter
+     * @return boolean
+     */
+    public function setFilterQueryType() {
+                                         	
+    }                                     	
     /**
      * method overloader
      * this method is used for invoking different listeners, for the full
@@ -55,7 +70,7 @@ class Doctrine_Db_Profiler implements Doctrine_Overloadable
      * @param string $m     the name of the method
      * @param array $a      method arguments
      * @see Doctrine_Db_EventListener
-     * @return void
+     * @return boolean
      */
     public function __call($m, $a)
     {
@@ -64,21 +79,83 @@ class Doctrine_Db_Profiler implements Doctrine_Overloadable
             throw new Doctrine_Db_Profiler_Exception("Couldn't listen event. Event should be an instance of Doctrine_Db_Event.");
         }
 
+
+
         // event methods should start with 'on'
         if (substr($m, 0, 2) !== 'on') {
-            throw new Doctrine_Db_Profiler_Exception("Couldn't invoke listener $m.");
+            throw new Doctrine_Db_Profiler_Exception("Couldn't invoke listener :" . $m);
         }
-        if (substr($m, 2, 3) === 'Pre' && in_array(strtolower(substr($m, 3)), $this->listeners)) {
+
+        if (substr($m, 2, 3) === 'Pre' && substr($m, 2, 7) !== 'Prepare') {
+            if ( ! in_array(strtolower(substr($m, 5)), $this->listeners)) {
+                throw new Doctrine_Db_Profiler_Exception("Couldn't invoke listener :" . $m);
+            }
             // pre-event listener found
             $a[0]->start();
+            if( ! in_array($a[0], $this->events, true)) {
+                $this->events[] = $a[0];
+            }
         } else {
+            if ( ! in_array(strtolower(substr($m, 2)), $this->listeners)) {
+                throw new Doctrine_Db_Profiler_Exception("Couldn't invoke listener :" . $m);
+            }
             // after-event listener found
             $a[0]->end();
         }
-
-        $this->events[] = $a[0];
+        /**
+         * If filtering by query type is enabled, only keep the query if
+         * it was one of the allowed types.
+         */
+        if ( ! is_null($this->filterTypes)) {
+            if ( ! ($a[0]->getQueryType() & $this->_filterTypes)) {
+                return false;
+            }
+        }
+        
+        return true;
+    }
+    /**
+     * get
+     *
+     * @param mixed $key
+     * @return Doctrine_Event
+     */
+    public function get($key) 
+    {
+        if (isset($this->events[$key])) {
+            return $this->events[$key];
+        }
+        return null;
+    }
+    /**
+     * getAll
+     * returns all profiled events as an array
+     *
+     * @return array        all events in an array
+     */
+    public function getAll() 
+    {
+    	return $this->events;
+    }
+    /**
+     * getIterator
+     * returns an iterator that iterates through the logged events
+     *
+     * @return ArrayIterator
+     */
+    public function getIterator()
+    {
+        return new ArrayIterator($this->events);
+    }
+    /**
+     * pop the last event from the event stack
+     *
+     * @return Doctrine_Db_Event
+     */
+    public function pop() 
+    {
+        return array_pop($this->events);
     }
-
     /**
      * Get the Doctrine_Db_Event object for the last query that was run, regardless if it has
      * ended or not. If the event has not ended, it's end time will be Null.
diff --git a/lib/Doctrine/Table.php b/lib/Doctrine/Table.php
index 59092a522..7a2d64784 100644
--- a/lib/Doctrine/Table.php
+++ b/lib/Doctrine/Table.php
@@ -217,18 +217,26 @@ class Doctrine_Table extends Doctrine_Configurable implements Countable
                                     if ($found)
                                         break;
 
-                                    $e2 = explode(":",$option);
+                                    $e2 = explode(':', $option);
 
                                     switch (strtolower($e2[0])) {
-                                        case "autoincrement":
+                                        case 'autoincrement':
+                                        case 'autoinc':
                                             $this->identifierType = Doctrine_Identifier::AUTO_INCREMENT;
                                             $found = true;
                                             break;
-                                        case "seq":
+                                        case 'seq':
+                                        case 'sequence':
                                             $this->identifierType = Doctrine_Identifier::SEQUENCE;
                                             $found = true;
+                                            
+                                            if($value) {
+                                                $this->options['sequenceName'] = $value;
+                                            } else {
+                                                $this->options['sequenceName'] = $this->conn->getSequenceName($this->options['tableName']);
+                                            }
                                             break;
-                                        };
+                                    }
                                 }
                                 if ( ! isset($this->identifierType)) {
                                     $this->identifierType = Doctrine_Identifier::NORMAL;
@@ -332,16 +340,19 @@ class Doctrine_Table extends Doctrine_Configurable implements Countable
     }
     /**
      * setColumn
+     *
      * @param string $name
      * @param string $type
      * @param integer $length
      * @param mixed $options
+     * @throws Doctrine_Table_Exception     if trying use wrongly typed parameter
      * @return void
      */
     final public function setColumn($name, $type, $length = null, $options = array()) {
         if (is_string($options)) {
             $options = explode('|', $options);
         }
+
         foreach ($options as $k => $option) {
             if (is_numeric($k)) {
                 if ( ! empty($option)) {
@@ -354,6 +365,10 @@ class Doctrine_Table extends Doctrine_Configurable implements Countable
 
         if ($length == null)
             $length = 2147483647;
+            
+        if((string) (int) $length !== (string) $length) {
+            throw new Doctrine_Table_Exception('Invalid argument given for column length');
+        }
 
         $this->columns[$name] = array($type, $length, $options);