[Koha-bugs] [Bug 10687] Delete erroneous tags 68a and 68b on default MARC21 auth framework

[bugzilla-daemon at bugs.koha-community.org]

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=10687

Galen Charlton <gmcharlt at gmail.com> changed:

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                 CC|                            |gmcharlt at gmail.com

--- Comment #20 from Galen Charlton <gmcharlt at gmail.com> ---
For what it's worth, I've figured out the origin of the 68a and 68b tags -- the
authority frameworks try to merge the MARC21 authority and MARC21
classification formats.

The MARC21 authority format had obsolete 685 and 686 tags, overlapping fields
with those tags defined in the classification format.  Whoever put together the
original framework SQL created the 68a and 68b tags to reconcile this, but
since 68a/68b fields would never get used in real life, I can't say I see the
point of it.

The MARC21 classification format is primary used by libraries that actually
maintain classification schemes.  Since the Library of Congress is not running
Koha, I think it would be reasonable to remove all of the classification format
tags from the MARC21 authority frameworks, or at the very least put them in
their own auth_type.  That would be a topic for another bug, of course.

This is a long-winded way to say that I agree that the 68a and 68b tags should
be removed.  Since removing them from the translations of the frameworks SQL is
essentially a mechanical operation, I'll push a follow-up that does exactly
that.

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