 CREATE TABLE `cell_type` (
    `cell_type_id` int(10) unsigned NOT NULL auto_increment,
    `name`  varchar(120) not NULL,
-   `display_label` varchar(30) default NULL,
+   `display_label` varchar(30) default NOT NULL,
    `description` varchar(80) default NULL,
    `gender` enum('male', 'female', 'hermaphrodite', 'mixed') default NULL,
    `efo_id` varchar(20) DEFAULT NULL,

   `cell_type_id`     int(10) unsigned default NULL,
   `experiment_id`    int(10) unsigned default NULL,
   `feature_type_id`  int(10) unsigned default NULL,
   `feature_class`    enum('result', 'dna_methylation') DEFAULT NULL,
   `name`             varchar(100) default NULL,
   `replicate`        tinyint(3) unsigned NOT NULL,
   PRIMARY KEY  (`result_set_id`),


-- Update and remove these for each release to avoid erroneous patching
INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'schema_version', '84');
INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_83_84_a.sql|schema_version');
INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_83_84_b.sql|Drop unique key for cell_type.efo_id');
INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_83_84_c.sql|Add not null constraint to cell_type.display_label');
INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_83_84_d.sql|Add segmentation enum to result_set.feature_class');
INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_83_84_e.sql|Increase length of regbuild_string.name');
INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_83_84_f.sql|Change regulatory_feature has_evidence to activity');

/**
@table meta_coord
