id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,drp_resources,i_links,o_links,remaining_time,sprint 5630,Nullable (RType) columns,jamoore,spli,"Currently all omero.column types are not nullable. A signpost value (-1, -INF, etc) must be used to mark a null value. Instead, a secondary column per nullable column (or a single ""Nulls"" matrix for all nullable columns) should be added to the OmeroTables to mark nulls. The values in the columns themselves will be most likely be Ice's default values (0, 0.0) but should be considered UNDEFINED. In reading the data, null RType instances will be inserted into the RType lists.",task,new,critical,Unscheduled,General,5.0.5,,,szwells,,,,1.0,