Hi Michael,
FYI, with version 2.1, I am using wildcards with the standard query
parser, and it seems to be working the way I expect. That is, if I put
wildcards at the beginning *or* end or a word (prefix or suffix word
part), I get different result counts compared to a word without any
wildcards.
However, I was not able to get wildcards to work with the WildcardQuery
function searching on a single term (it returned no results). It is
possible I may have not been using it correctly, since it was my first try.
Also, my index is apparently small enough that I don't get a significant
performance hit from using wildcards at the beginning of a term.
/*Does anybody know if Lucene supports wildcards at the beginning *and*
end of a term at the same time? I am getting no results when I do this. */
Also from an interface design point of view, if Lucene does not support
this, could it be argued that it should throw an error in this case,
instead of returning no results?
Michael Mitiaguin wrote:
Douglas,
I never used it , but in "Lucene in Action" book we may read :
Wildcards at the beginning of a term are prohibited using QueryParser, but
an API-coded WildcardQuery may use leading wildcards (at the expense of
performance).
Regards
Michael
On 8/31/07, Douglas Smith <[EMAIL PROTECTED]> wrote:
Hi everyone,
Are wildcard queries intended to be able to support wildcards at the
beginning *and* end of a term?
I am getting search results when I use a single wildcard (*), but not
when I use them at the begging *and* end of a word. The Lucene java
documentation seems unclear on this point, but one of my requirements is
to find word fragments in the middle of words.
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