    `description`            VARCHAR(255)          DEFAULT NULL,
    `name`                   VARCHAR(100)          DEFAULT NULL,
    `primary_design_type`    VARCHAR(30)           DEFAULT NULL,
+   `archive_id`             varchar(60)           DEFAULT NULL,
+   `display_url`            varchar(255)          DEFAULT NULL,
    PRIMARY KEY  (`experiment_id`),
    UNIQUE KEY `name_idx` (`name`),
    KEY `design_idx` (`primary_design_type`),


DROP TABLE IF EXISTS `result_set`;
CREATE TABLE `result_set` (
   `result_set_id` int(10) unsigned NOT NULL auto_increment,
   `analysis_id` smallint(5) unsigned NOT NULL,
   `name` varchar(100) default NULL,
   `cell_type_id` int(10) unsigned default NULL,
   `feature_type_id` int(10) unsigned default NULL,
   `feature_class` enum('result', 'dna_methylation') DEFAULT NULL,
   `replicate`       tinyint(3) unsigned NOT NULL,
   PRIMARY KEY  (`result_set_id`),
   UNIQUE KEY `name_idx` (`name`),
   KEY cell_type_idx (cell_type_id),
   KEY feature_type_idx (feature_type_id),
   KEY analysis_idx (analysis_id),
   KEY feature_class_idx (feature_class)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;



@column description             Text description
@column name                    Name of experiment
@column primary_design_type     e.g. binding_site_identification, preferably EFO term
@column archive_id              ENA experiment identifier enabling access to specific raw data
@column display_url             Http link to source file

@see cell_type
@see experimental_group
