[Koha-bugs] [Bug 7818] support DOM mode for Zebra indexing of bibliographic records

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

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=7818

--- Comment #2 from Jared Camins-Esakov <jcamins at cpbibliography.com> ---
I tested it, and ran into an issue with the relevancy ranking. The translation
of the following lines is problematic:

melm 243$n      Thematic-number
melm 243$r      Music-key
melm 243        Title:w,Title:p,Title-collective
melm 245$a     
Title-cover:w,Title-cover:p,Title-cover:s,Title:w,Title:p,Title:s
melm 245$c      Author,Author-in-order:w,Author-in-order:p,Author-in-order:s
melm 245$9      Cross-Reference:w,Koha-Auth-Number
melm 245        Title:w,Title:p
(I kept the 243 lines for comparison sake, the issue is really with 245, as
explained below)

In particular, note that 245$c in the GRS-1 configuration does *not* get put
into the Title index. In C4::Search, hits in the Title index are marked as r3,
which (under GRS-1) ignores the statement of responsibility in 245$c. With the
conversion of record.abs to DOM indexes, the Title:w, Title:p indexes now
include the statement of responsibility, which means that authors' names will
be given r3 ranking, *plus* the additional weighting for appearing additional
times elsewhere in the record.

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