protected function _sqlDefaults($config)
	{
		$tmp = array(
			//'only_query',
			//'dont_query',
			'only_import',
			'dont_import',			
			'only_add',
			'dont_add',
			'only_modify',
			'dont_modify', 
			'only_misc', 
			'dont_misc', 
			);
		
		foreach ($tmp as $filter)
		{
			if (empty($config[$filter]) or
				(!empty($config[$filter]) and !is_array($config[$filter])))
			{
				$config[$filter] = array();
			}
		}
		
		// Any other configuration defaults go here 
		$defaults = array(
						  
			);
		
		return array_merge($defaults, $config);
	}