Hi, No. Collation keys are a one-way function. You need to index it into 2 different fields, once for sorting as collation key and once for facetting or display.
Uwe Am 30. April 2017 22:29:23 MESZ schrieb "Luís Filipe Nassif" <lfcnas...@gmail.com>: >A related question: is it possible to do faceting on a >SortedDocValuesField >using Collation rules? Or faceting is always case sensitive? > >Thanks in advance, >Luis > >2017-04-30 12:35 GMT-03:00 Luís Filipe Nassif <lfcnas...@gmail.com>: > >> Hi Lucene community! >> >> I can successful get original doc values from fields indexed with >> SortedDocValues with code like: >> >> BytesRef bref = atomicReader.getSortedDocValues(field).get(doc); >> String value = bref.utf8ToString(); >> >> But as I need to use locale sorting, I use ICUCollationDocValuesField >for >> indexing several fields. But for those fields, the code above does >not >> work, the value returned is a lot of unreadable chars. I know it is >because >> of the conversion of Strings to CollationKeys done by ICU Collator. >> >> Is there a way to convert the returned BytesRef to the original doc >value? >> Or, in other words, how can I get the original String from an ICU >> RawCollationKey? >> >> Any help will be very appreciated! >> >> Thanks Lucene contributors for so great projet! >> Luis Nassif >> -- Uwe Schindler Achterdiek 19, 28357 Bremen https://www.thetaphi.de
