[Koha-bugs] [Bug 27448] Update ElasticsearchCrossFields description to explain consequences of setting in Koha

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=27448

--- Comment #2 from Nick Clemens <nick at bywatersolutions.com> ---
In Koha, a 'keyword' search does not search a cpombined 'keyword' field, but
rather searches your term across all the fields marked as 'searchable' in the
current interface.

Cross fields is used to determine whether you want to only return values where
all entered terms are included in a single search field, or whether you wish to
find a record with all terms, but allowing the terms to be in any combination
of fields.

e.g.
"king grass"

without cross fields will return:
The Island of the Grass King by Nancy Willard (grass in title/king in title)

with cross fields will return:
The Island of the Grass King by Nancy Willard (grass in title/king in title)
In the tall grass by Stephen King (grass in title/king in author)

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