To be clear, analysis is not supported on StringField (or any non-tokenized
field). But the good news is that by using the keyword tokenizer
(KeywordTokenizer) on a TextField, you can get the same effect.
That will preserve the entire input as a single token. You may want to
include filters to trim exterior white space and normalize interior white
space.
-- Jack Krupansky
-----Original Message-----
From: Shahak Nagiel
Sent: Tuesday, May 21, 2013 10:06 AM
To: java-user@lucene.apache.org
Subject: Case insensitive StringField?
It appears that StringField instances are treated as literals, even though
my analyzer lower-cases (on both write and read sides). So, for example, I
can match with a term query (e.g. "NEW YORK"), but only if the case matches.
If I use a QueryParser (or MultiFieldQueryParser), it never works because
these query values are lowercased and don't match.
I've found that using a TextField instead works, presumably because it's
tokenized and processed correctly by the write analyzer. However, I would
prefer that queries match against the entire/exact phrase ("NEW YORK"),
rather than among the tokens ("NEW" or "YORK").
What's the solution here?
Thanks in advance.
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