: I want to set 2 field that are unique for different kind of searching. Does : it possible?
not unless you enforce it yourself -- there isn't anything built in to Solr to do this with the exception of the uniqueKey field. There is an UpdateRequestProcessorFactory hook that you can implement to do arbitrary logic for each update command (regardless of wether the update comes from XML, CSV, or something else) ... you could add whatever uniqueness logic you want there. -Hoss
