[Koha-bugs] [Bug 9821] Zebra indexes useless subfields in UNIMARC 5XX

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

http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=9821

--- Comment #1 from mathieu saby <mathieu.saby at univ-rennes2.fr> ---
Created attachment 16176
  -->
http://bugs.koha-community.org/bugzilla3/attachment.cgi?id=16176&action=edit
[PATCH] Bug 9821: Make indexing of UNIMARC 5XX and 205 more specific


511 field ("false title") is not indexed.
519 field is indexed but does not belong to unimarc standard.
Indexing the whole 500/501 make search noisy because of $k (date) and $m
(language). $b is useless.
Indexing some subfields of 520/530/532/560 could sometimes be harmfull too.
In 500/501, $j,$x,$y,$z are subdivisions used of the record is not about a
title, but about a subject linked to a title.
For example :
500$aBible$xTranslations
So they should be indexed in subjects indexes rather than title index.

Regarding 205 (edition statement), it is currently indexed in title index.
But some subfields of 205 ($f and $g) contain information about the authors of
that edition, so only $a,$b,$d should be indexed in title index.
An other patch is made for indexing $f $g in author index.

This patch does the following changes :

1) Indexing only 205$a,$b,$d in title index
2) Commenting all the 5XX in record.abs
3) Indexing 511
4) Keeping 519 for the moment, but commenting
5) For 500 and 501, indexing subject subfield in subjects index :
500/501$j Subject,Subject:p
500/501$x Subject,Subject:p
500/501$y
Subject-name-geographical:w,Subject-name-geographical:p,Subject,Subject:p
500/501$z Subject-chronological:w,Subject-chronological:p,Subject,Subject:p

6) Unindexing the following subfields : 

500 and 501 (uniform title)
not indexing $b (type of ressource), $k (date), $m (language), $2 (system
code),$3 (authority record number)
So that
500 $aBible $iNew Testament $mEnglish $qRevised Standard Version $k1972
should be indexed as
500 $aBible $iNew Testament $qRevised Standard Version

520 : preceding title (used for serials)
non indexing $j and $x
$j is intended for displaying notes. Ex of content : "Issue nos. 1 (summer
1974)-5 (autumn 1975)"
$x contains ISSN of former title. Maybe it could be indexed in issn index, but
it should not be in Title

530 : key title (used for serials)
non indexing $j
$j contains volume and date of key title. Could be used if the record contains
several 530, to precise the volumes or dates associated with each key title.
Nobody will use it in ordinary search.

532 : Developped Title
non indexing $z (language of title)

560 : Artificial Title
not indexing $5 (code for institution to which the field applies)


To test :
In a GRS1 environment

1) Create a record with
511$a FalseTitle
205$a Edition $f bz9821 $g bz9821
500$a Bible $b bz9821 $k bz9821 $m bz9821 $j bz9821subject $x bz9821subject $y
bz9821subject $z bz9821subject $2 bz9821 $3 bz9821
501$a Bible $b bz9821 $k bz9821 $m bz9821 $j bz9821subject $x bz9821subject $y
bz9821subject $z bz9821subject $2 bz9821 $3 bz9821
520$a PTitle $x bz9821 $j bz9821
530$a KTitle $v bz9821
532$a DTitle $z bz9821
560$a DTitle $5 bz9821

2) Apply
3) Rebuild zebra
4) Search in title index : FalseTitle => you should find it
5) Search in title index : bz9821* => you should have no result
6) Search in subject index : bz9821subject => you should have 1 result

Do the same in a DOM environment


M. Saby

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