https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=40119 Janusz Kaczmarek <januszop@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|In Discussion |Signed Off --- Comment #6 from Janusz Kaczmarek <januszop@gmail.com> --- (In reply to Marcel de Rooy from comment #5)
Yeah, an empty $2 is weird. But I am not completely sure about retaining the old value or removing the subfield.
If we explicitly remove the 040f value from the authority (while having that old value in all linked biblio records and keeping it), wouldnt that be confusing?
Do you have any MARC documentation support for leaving 040f empty to allow $2 values on the bib side (even different ones)?
Thanks, Marcel, for commenting. 1) From https://www.loc.gov/marc/authority/ad008.html, section 008/11 = 'z': "A MARC code for the conventions used to formulate the heading *may* be contained in subfield $f (Subject heading/thesaurus conventions) in field 040 (Cataloging Source)". "May" means, IMO, that it is legal to have 008/11 = 'z' and no 040 $f. 2) 008/11 = 'z' in authority implies 2nd ind. = '7' in linked 6XX fields in bibliographic record. And 2nd ind. = '7' implies the presence of $s subfield. (From https://www.loc.gov/marc/bibliographic/bd600.html: " 7 - Source specified in subfield $2 / Subject added entry conforms to a set of subject heading system/thesaurus building rules. The identifying code is given in subfield $2." 3) I agree that removing 040 $f from an authority record while leaving 008/11 = 'z' creates a fuzzy situation but IMO the best heuristics is just to retain the old value of $2 in linked biblios. For now, I cannot think of a better choice... What could we do else? (If one puts later a new value in auth 040 $f or changes 008/11, the 6XX $2 will be updated or removed accordingly.) 4) A real world example of authority records with 008/11 = 'z' and no 040 $f linked to bibliographic 6XX with 2nd ind. '7' and subfield $2 is the Polish NB bibliographic data: note fields 6XX in https://data.bn.org.pl/api/institutions/bibs.marcxml?id=b1000003108650 vs. example authority record for 'Graficy holenderscy': https://data.bn.org.pl/api/institutions/authorities.marcxml?id=a000000228425... -- You are receiving this mail because: You are watching all bug changes.