[Koha] How are authority records connected with biblio records ?

[Chris Cormack]

* David Holoshka (david.holoshka at ub.lu.se) wrote:
>Hi,
>
>I am migrating several million records from an existing vtls system to 
>koha.  We are using mariadb, koha 17.05 (have pulled from master 
>yesterday ), elastic search 5.4 and plack on debian systems.  As I 
>wanted to preserve all the authority to biblio record links  I wrote 
>my own migration script based on the relevant koha source.

Hi David

Did you really mean master, or did you pull from the 17.05.x branch?
If you meant master you aren't running 17.05 but the unreleased code
that will be 17.11.0 eventually.

The ES authority support is still a work in progress.

Chris

>
>Searching in the koha authorities intra will find the authority record 
>but usually lists the number of biblio records having the auth as 
>zero, but not always.  If I check the biblio index in ES the items 
>have the correct auth id in the "an" field.  I can find no difference 
>between the biblio records in the ES index that are reported as linked 
>to the auth record to the ones that are not.  I connect the biblio 
>recs to the authorities in the marc21 structure by putting the  koha 
>auth id in field 100 sub field 9 (if it is a name auth).  These marc 
>records are now in the new biblio_metadata table.
>
>
>How does koha find the biblio records connected to a paticular auth 
>record ?
>
>Is this done dynamically by searching the ES indexes ?
>
>
>Is this an issue with the zebra database?  Is it still required ?  I 
>haven't been loading data into it since we switched to ES.
>
>Best Regards,
>
>Dave
>
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-- 
Chris Cormack
Catalyst IT Ltd.
+64 4 803 2238
PO Box 11-053, Manners St, Wellington 6142, New Zealand
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