custom field search failure

[lauraeis]

Hi,
Is there any problem with using text field in search sort?
I have created a sorting fields and labels:
          <sort labelId="search.sort.relevance"></sort>
     <sort labelId="Numurs">custom:documentRegNumber</sort>
     <sort labelId="Dokumenta veids">custom:documentType</sort>
          <sort labelId="Dokumenta nosaukums">custom:documentNameClasification</sort>
     <sort labelId="Datums">cm:created|false</sort>
     <sort labelId="Autors">cm:author</sort>
     <sort labelId="Arhīva lietas numurs">custom:archiveCaseNumber</sort>
     <sort labelId="Rediģēšanas datums (pēdējais)">cm:modified</sort>
     <sort labelId="search.sort.mimetype">.mimetype</sort>

Everything works fine (custom category fields too) except custom:documentRegNumber and custom:archiveCaseNumber witch are text types:
    <property name="custom:documentRegNumber">
          <title>Dokumenta reģistrācijas numurs</title>
          <type>d:text</type>
          <mandatory>true</mandatory>
    </property>
    <property name="custom:archiveCaseNumber">
          <title>Arhīva lietas numurs</title>
          <type>d:text</type>
          <mandatory>false</mandatory>
    </property>

In log file I get:
2012-12-04 18:44:25,923  ERROR [solr.core.SolrCore] [http-bio-8443-exec-1] java.lang.UnsupportedOperationException: Ordering not supported for @{custom.model}documentRegNumber

So, I want to know, is there any problem with using text field in sorting or I am doing something wrong?

Regards,
Laura

[andy]

Hi

Text fields are not orderable unless unless they are tokenised "false" or "both".
It generally makes no sense to sort on tokenised fields as the sort by the lowest token generated.

Andy

[maddy]

HTTP Status 500 - Ordering not supported for {http://www.cchindia.co.in/model/cch/dtax/article/1.0}subtopic java.lang.UnsupportedOperationException: Ordering not supported for