[Koha-bugs] [Bug 34815] New: Improve efficiency of C4::Biblio::LinkBibHeadingsToAuthorities

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=34815

            Bug ID: 34815
           Summary: Improve efficiency of
                    C4::Biblio::LinkBibHeadingsToAuthorities
 Change sponsored?: ---
           Product: Koha
           Version: master
          Hardware: All
               URL: misc/link_bibs_to_authorities.pl
                OS: All
            Status: NEW
          Severity: normal
          Priority: P5 - low
         Component: Architecture, internals, and plumbing
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: martin.renvoize at ptfs-europe.com
        QA Contact: testopia at bugs.koha-community.org
                CC: a.roussos at dataly.gr, david at davidnind.com,
                    dcook at prosentient.com.au, victor at tuxayo.net
        Depends on: 21828
            Blocks: 7923

+++ This bug was initially created as a clone of Bug #21828 +++

The routine iterates through all fields in a biblio and compares them to a list
of acceptable tags that may link to an authority.  It may be more efficient to
do the opposite iteration, working through acceptable authority tags and
looking for the existence of that field in the biblio. (Note.. I've not tested
this hypothesis.. it depends heavily on how efficient it is to fetch a single
MARC tag using Marc::Record)

Note: Bug 21828 was repurposed for a distinct, but also worthwhile performance
boost in the UNIMARC case.. I'd still be interested in the above hypothesis
being tested if anyone fancies it.. so I've cloned the original bug just so the
idea isn't lost.


Referenced Bugs:

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=7923
[Bug 7923] Performance omnibus
https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=21828
[Bug 21828] Improve efficiency of C4::Biblio::LinkBibHeadingsToAuthorities
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