Trying to implement sorting in lucene and want to sort by the field title, e.g., a book title. According to the Lucene in Action book, the field that is to be sorted must be indexed as un-tokenized. Not knowing as much as I should about lucene searching I first thought that the field to be sorted was the same field that had to be searched and indexed by. However, as I understand it now I can have 2 fields in the same Document that represent the title – a ‘title’ field which is indexed as tokenized so that searches can be done on title keyword and a second field ‘titlesort’ field that can be used to sort the results of a search on ‘title’.
