[Koha-bugs] [Bug 19893] Alternative optimized indexing for Elasticsearch

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=19893

--- Comment #99 from Alex Arnaud <alex.arnaud at biblibre.com> ---
(In reply to David Gustafsson from comment #96)
> @Alex Arnaud I agree concaternation of subfields could be useful, but I ague
> that how this is done has to be defined in the mappings. If we concatenate
> all the subfields, many existing fields where concatenation is not desirable
> will be concaternated as a result.

I think the mapping system was designed for that. I.e

author: 700ba
# we get 700$a and 700$b concatenated

And when concatenation is not wanted:

author: 700b
author: 700a
# We get 700$a and 700$b in 2 different array elements

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