Just inspected our Xapian index with the delve utility.
Datestamps are indexed like this, e.g.

datestamp:2008-02-11 12:11:33

However, you can't search on the - character. Currently, it's only possible to search like this: datestamp:(2008*)  but not datestamp:(2008-02*) or datestamp:(2008-02-11*) or with double quotes.

Can lib/search_xapian.pl be modified so that datestamps are indexed differently?
Has something gone on with Seb's work https://github.com/eprints/xapianv2 ?

Best regards,

Martin

--
Dr. Martin Brändle
Zentrale Informatik
Universität Zürich
Stampfenbachstr. 73
CH-8006 Zürich


martin.braendle---03/09/2015 13:39:22---Hi Josée, for author searches, don't put the names into double quotes, but into

Von: martin.braendle@id.uzh.ch
An: eprints-tech@ecs.soton.ac.uk
Datum: 03/09/2015 13:39
Betreff: [EP-tech]  Antwort:  Re: Xapian Search
Gesendet von: eprints-tech-bounces@ecs.soton.ac.uk

We have configured our search this way : 

$c->{search}->{simple} = {
  search_fields => [
                     {
                       id => "q",
                       meta_fields => [
                          "documents",
                          "eprintid",
                          "title",
                          "creators_name",
                          "abstract",
                          "datestamp",
                                                    …

We have reloaded the config (epadmin), restarted Apache and reindexed our eprints. 

But now we get two problems :

            1. We can't search by datestamp. 

                        We tried "datestamp:2015-08-*", "datestamp:2015/08/*", "datestamp:201508*", ...
                        Nothing seems to work. We always get empty results. 

                        Do you know what is the right syntax to do a Xapian search based in this field ? 

            2. We can't search by creators_name 

                        We can search by last name : creators_name:"Noyer"
                        Or by first name : creators_name:"Jean-Louis" 

                        But we can't combine firsrt and last name :
                        creators_name:"Noyer Jean-Louis" or creators_name:"Noyer, Jean-Louis"
                        both  give and empty result set. 

                        Do you know how to do such a search using both first and last name ?

Thank you for your help 

Le 01/09/2015 15:25, Field A.N. a écrit :

Have you restarted the webserver?  Changes to the .pl files do not load automatically when the file changes.  You'll need to reload the configuration (/<eprints_root>/bin/epadmin reload [repositoryid]) or restart apache before the changes will be visible at the front end.

--
Adam Field
Business Relationship Manager and Community Lead
EPrints Services
+44 (0)23 8059 8814





On 27 Aug 2015, at 17:17, Lessard Josée wrote:

Hello,
I have two questions on research Xapian :

1.   How query the fields : datestamp ?

2.   How query the fields :  creators_name (name_family with name_given ) ?



We added fields (datestamp and creators_name)  in the file cfg.d/eprints_search_simple.pl and reindexed the database.
$c->{search}->{simple} =
{
                  search_fields => [
                                       {
                                                           id => "q",
                                                           meta_fields => [
                                                                               "documents",
                                                                               "eprintid",
                                                                               "title",
                                                                               "creators_name",
                                                                               "abstract",
                                                                               "datestamp",
                                                                               …

Thank you for your help

Josée Lessard


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