https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=43436
Bug ID: 43436
Summary: Elasticsearch doesn't order publication dates with 'u'
correctly
Initiative type: ---
Sponsorship ---
status:
Product: Koha
Version: 24.11
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P5 - low
Component: Searching - Elasticsearch
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
Target Milestone: ---
In MARC21, but also in UNIMARC as was mentioned on Mattermost, sorting by
publication date doesn't work correctly.
We use date-of-publication for sorting. In MARC21 this contains the information
from 008, 4-10 (Date 1). These dates are fixed on 4 characters and can contain
u for unknown parts of the date:
0201
1999
07uu
We noticed this while working on a project that has a lot of manuscripts that
can date back to before 1000 and have some uncertainty.
The 07uu will sort as 7, which puts it off by a few hundred years.
I experimented with the "Call number" type in the configuration as that has a
sort configuration of "numerical: false". The results appear to be much better
then.
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