It doesn't work because lucene doesn't store all the necessary info in the index. It may work for StringField because there isn't really any other info for that field type - it's just a string stored as is - but other fields have tokenization, precision, whatever, which may not be stored, and evidently isn't for DoubleField.
-- Ian. On Fri, Apr 26, 2013 at 2:43 PM, Neil Ireson <n.ire...@dcs.shef.ac.uk>wrote: > Thanks for the reply. > > I don't understand why I cannot "read an existing document,... and add it > to an existing or new index". > > I understand this wouldn't work for fields which are not stored, I also > understand that I am responsible for making sure the tokenizers and > analyzers are the same, but given these caveats, what is the reason for it > failing to work for all stored fields. > > As I said before the process works fine for StringField types and as far > as I can see the only reason it fails for DoubleField types is that the > fieldType().indexed() incorrectly returns false when it is indexed. > > > N > > ------------------------------**------------------------------**--------- > To unsubscribe, e-mail: > java-user-unsubscribe@lucene.**apache.org<java-user-unsubscr...@lucene.apache.org> > For additional commands, e-mail: > java-user-help@lucene.apache.**org<java-user-h...@lucene.apache.org> > >
