What do you mean with " IMHO, the error message asks me to add indexed=true uninvertible=true or docValues=true to title_s_lower, which is impossible, since it is a copy-field.".
Copy-fields are like any other field, just the source for their values comes from source fields. You have full control over their attributes. -------------------------- Alessandro Benedetti Visiting card - https://sease.io/about/alessandro-benedetti <http://about.me/alessandro_benedetti> Blog - https://sease.io/blog <http://alexbenedetti.blogspot.co.uk> "Tyger, tyger burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry?" William Blake - Songs of Experience -1794 England On Wed, 2 Apr 2025, 13:33 Ehrenleitner Robert Harald, < robert.ehrenleit...@plus.ac.at> wrote: > Hi all, > > when querying my index and trying to sort it by title_s_lower, it responds > with an HTTP error 400: > > { > "error":{ > > "metadata":["error-class","org.apache.solr.common.SolrException","root-error-class","org.apache.solr.common.SolrException"], > "msg":"can not sort on a field w/o docValues unless it is indexed=true > uninvertible=true and the type supports Uninversion: title_s_lower", > "code":400 > } > } > > IMHO, the error message asks me to add indexed=true uninvertible=true or > docValues=true to title_s_lower, which is impossible, since it is a > copy-field. > > Excerpts of the JSON data to create the index: > > { > "add-field": [ > // cut > { > "name": "title", > "type": "text_general", > "stored": true, > "indexed": true, > "multiValued": false, > "required": true > }, > // cut > ], > "add-copy-field": [ > { > "source": "title", > "dest": "title_s_lower" > } > ] > // cut > > Can someone tell me how to fix this? > > Mag.phil. Robert Ehrenleitner, BEng. > -- > > Mag.phil. Robert Ehrenleitner, BEng. > > Web-Developer > > IT-Services | Application & Digitalization Services > > Hellbrunner Straße 34 | 5020 Salzburg | Austria > <https://www.google.com/maps/search/Hellbrunner+Stra%C3%9Fe+34+%7C+5020+Salzburg+%7C+Austria?entry=gmail&source=g> > > Tel.: +43/(0)662/8044 - 6778 > > *www.plus.ac.at <http://www.plus.ac.at>* > > >
