Hi Andrej, the reason why you can't sort on multivalued fields in Solr is - how would Solr decide which one of the multiple values it should use for sorting?
In DSpace, the custom metadata fields are all defined as multivalued. However, there is an additional field for sorting - the *_sort dynamic field. Try these parameters: &sort=dateissued.year_sort%20desc &sort=diss.date.defence_sort%20desc Regards, ~~helix84 Compulsory reading: DSpace Mailing List Etiquette https://wiki.duraspace.org/display/DSPACE/Mailing+List+Etiquette ------------------------------------------------------------------------------ Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk _______________________________________________ DSpace-tech mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dspace-tech List Etiquette: https://wiki.duraspace.org/display/DSPACE/Mailing+List+Etiquette

