original_string: public function columnCount()
      {
          try {
              return $this->_stmt->columnCount();
          } catch (PDOException $e) {
              // require_once 'Zend/Db/Statement/Exception.php';
              throw new Zend_Db_Statement_Exception($e->getMessage(), $e->getCode(), $e);
          }
      }
code: public function columnCount()
      {
          try {
              return $this->_stmt->columnCount();
          } catch (PDOException $e) {
              // require_once 'Zend/Db/Statement/Exception.php';
              throw new Zend_Db_Statement_Exception($e->getMessage(), $e->getCode(), $e);
          }
      }
code_tokens: public function columnCount ( ) { try { return $ this -> _stmt -> columnCount ( ) ; } catch ( PDOException $ e ) { // require_once 'Zend/Db/Statement/Exception.php'; throw new Zend_Db_Statement_Exception ( $ e -> getMessage ( ) , $ e -> getCode ( ) , $ e ) ; } }
docstring: Returns the number of columns in the result set.
  Returns null if the statement has no result set metadata.
  
  @return int The number of columns.
  @throws Zend_Db_Statement_Exception
docstring_tokens: Returns the number of columns in the result set . Returns null if the statement has no result set metadata .