/**
* Returns column definition for column provided in key_column parameter.
*
* @return array
* @throws Enterprise_Mview_Exception
*/
protected function _getKeyColumnConfig()
{
$describe = $this->_table->describe();
if (!array_key_exists($this->_metadata->getKeyColumn(), $describe)) {
throw new Enterprise_Mview_Exception(sprintf("Column '%s' does not exist in the '%s' table", $this->_metadata->getKeyColumn(), $this->_table->getObjectName()));
}
return $this->_connection->getColumnCreateByDescribe($describe[$this->_metadata->getKeyColumn()]);
}
