Should I convert this to a SEARCH ticket? Done.
Just to clarify: This ticket is for searching for releases where it is known that there is no barcode. Searching for releases with unknown barcode would be another ticket (maybe syntax barcode:unknown).
to clarify how this is stored in the database:
barcode:unknown would be those rows in the release table with barcode set to NULL
barcode:"[none]" would be those rows in the release table with barcode set to "" (the empty string)
Done as follows:
barcode:- for when no barcode known to fit it with gic of SEARCH1-174 that the release may not actualy have a barcode
barcode:none when known there is no barcode, preferred this value to [none] as the '[' and ']' have to be escaped making entering them more difficult.