[Koha-bugs] [Bug 23875] Elasticsearch - ES - When sorting by score we should provide a tiebreaker

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=23875

--- Comment #5 from Ere Maijala <ere.maijala at helsinki.fi> ---
(In reply to Nick Clemens from comment #3)
> In the mappings local-number is set as a string by default - should we
> change it to a number? I think in practice it will be a number, however,
> under ES at least I don't see why someone couldn't map local-number to 001
> and manage their own control numbers with letters, so maybe string is okay
> as long as your numbers are built consistently?

Changing it to number would be scary, and I don't think this is really an
issue. If we want to make sorting consistent, we could always left-pad the
biblionumber with zeros, but I don't really like it since it wouldn't match the
biblionumber field in MARC exactly. Alternatively we could have a hardcoded
mapping to a numeric biblionumber field. Or make the tie-breaker sort field
configurable. But since local-number gives us consistent results, I believe
this is good enough for all practical purposes.

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