da_key int unsigned primaryKey a numeric key, autoincrement
da_name varchar(255) unique unique name with extension
da_size int file size
da_type int unsigned dataType key
da_description tinyblob a description, will reference it's creation piping if autogenerated result
da_source enum('result', 'upload') autogenerated result or an original upload?
da_user int unsigned user key for the user who uploaded or ran the creating tool
da_user_text varchar(255) the user name
da_timestamp char(14) the time uploaded according to mediaWiki's form of timestamp.