[Koha-devel] MARC21 missing and obsoleted fields

[Bernardo Gonzalez Kriegel]

Hi,
working on frameworks translation I decided to take a look at LOC [1]
searching for updates.

I found that the following fields are absent in default and optional frameworks:

 '085','264','336','337','338','344','345','346','347','363',
 '377','380','381','382','383','384','542','588','751','882',
 '883'
(the last one is brand new, September 2012)

Also, the following are absent in LOC documents, many obsoleted or for
OCLC/RLIN,
save the third that is a mistake I known for years but failed to report.

 '009','011','01e','023','029','039','049','087','091','092',
 '096','098','099','211','212','214','241','261','262','265',
 '301','302','303','304','305','308','315','350','359','400',
 '410','411','440','503','509','512','517','523','527','537',
 '543','570','582','652','705','715','755','840','851','859',
 '870','871','872','873'

Questions:
1) Is it ok to write a patch to add missing fields?
2) Is it ok to write a patch to remove non-LOC fields? Or do you think
is better to keep them?
3) Most of 9XX has no use in Koha, Can it be cleaned?

Regards,
Bernardo

[1] http://www.loc.gov/marc/bibliographic/ecbdhome.html
--
Bernardo Gonzalez Kriegel
bgkriegel at gmail.com