[Koha-bugs] [Bug 23671] New: Elasticsearch shouldn't throw exception on an uppercase subfield identifier

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=23671

            Bug ID: 23671
           Summary: Elasticsearch shouldn't throw exception on an
                    uppercase subfield identifier
 Change sponsored?: ---
           Product: Koha
           Version: master
          Hardware: All
                OS: All
            Status: ASSIGNED
          Severity: trivial
          Priority: P5 - low
         Component: Searching - Elasticsearch
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: nicolas.legrand at bulac.fr
        Depends on: 23670

MARC 21 specifies a subfield identifier “may be any any lowercase alphabetic or
numeric character” (https://www.loc.gov/marc/96principl.html section 8.4.2).

It is not that clear for Unimarc or even for ISO 2709 itself. Our catalogue in
Unimarc use uppercase alphabetic subfield identifier for items. When we try to
index it with Elasticsearch, it throws an exception (well, it tries to, this is
fixed by Bug 23670).

We think Elasticsearch shouldn't be picky about uppercase alphabetic subfield
identifier, especially when Koha permits their creation in the MARC Framework
or in the Elasticsearch mapping.


Referenced Bugs:

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=23670
[Bug 23670] Load Koha::Exceptions::ElasticSearch module in
Koha::SearchEngine::Elasticsearch
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