another version of setting prefix

table_prefix2.php

class Mist_Db_Table extends Zend_Db_Table
{
	public function __construct($config = array(), $definition = null)
	{
		parent::__construct($config, $definition);
 
		$config = $this->getAdapter()->getConfig();
 
		if(array_key_exists('prefix', $config))
		{
			$this->_name = $config['prefix'] . $this->_name;
		} 
	}
}