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Posted to java-user@lucene.apache.org by Rishabh Bajpai <r_...@lycos.com> on 2003/02/01 05:32:36 UTC
Wildchar based search?? |
that actually brings me to another question...
1) to what extent are wildcards supported by lucenes?
2) what are the known bugs and where can i find the relevant documentation pertaining to them?
3) Is there some specific way in which the indexes are to be built, for them to return wildchar based search results? I believe there is but i am not sure where to look for that information.
thanks
Rishabh
--
On Fri, 31 Jan 2003 14:19:11
Otis Gospodnetic wrote:
>The thread more suited for lucene-user.
>
>I think that's just a bad work to be indexing....Microsoft...sheesh.
>Ok, it's not. This is a known thing, even mentioned in the FAQ on
>jGuru.
>For how StandardFilter works it's best to look at the source, it's
>quite simple. I think I might have mentioned that in the Lucene
>article on Onjava.com as well....not 100% sure any more :)
>
>Otis
>
>
>--- Lukas Zapletal <lz...@root.cz> wrote:
>> Hello all,
>>
>> I have a small problem. Let`s have a word 'Microsoft' indexed in
>> Lucene.
>> When I query Microsoft, it returns the document, but when I try
>> Micro*
>> then nothing is found. After lowercasing the first letter to micro*
>> Lucene returns the document.
>>
>> The same thing is with ?. When I use it, only lower-cased words are
>> matched.
>>
>> Is this a bug or Am I missing something?
>>
>> ps - where can I find some information how Lucene parse the input
>> when
>> using StandardFilter. I mean I don`t know what is ignored and what
>> not.
>> For example acronyms (U.S.A), dates (2002-11-07 or 1. 1. 2003) etc...
>> I
>> cannot find it in the documentation. In the StandardFilter API there
>> is
>> onthing, it seems to be generated from JavaCC.
>>
>> --
>> Lukas Zapletal [lzap@root.cz]
>> http://www.tanecni-olomouc.cz/lzap
>>
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: lucene-dev-unsubscribe@jakarta.apache.org
>> For additional commands, e-mail: lucene-dev-help@jakarta.apache.org
>>
>
>
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Re: Wildchar based search?? |
Posted by Tatu Saloranta <ta...@hypermall.net>.
On Saturday 01 February 2003 00:19, Otis Gospodnetic wrote:
> > 1) to what extent are wildcards supported by lucenes?
>
> You can use * and ? the way they usually are used.
I think there was one exception; first character of a simple term
can not be a wildcard? (this from query syntax page).
-+ Tatu +-
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Re: Wildchar based search?? |
Posted by Otis Gospodnetic <ot...@yahoo.com>.
> 1) to what extent are wildcards supported by lucenes?
You can use * and ? the way they usually are used.
> 2) what are the known bugs and where can i find the relevant
> documentation pertaining to them?
Why do you think there are bugs in the first place? Have you
encountered any bugs?
> 3) Is there some specific way in which the indexes are to be built,
> for them to return wildchar based search results? I believe there is
> but i am not sure where to look for that information.
No, nothing special needs to be done.
Otis
> thanks
> Rishabh
>
>
> --
>
> On Fri, 31 Jan 2003 14:19:11
> Otis Gospodnetic wrote:
> >The thread more suited for lucene-user.
> >
> >I think that's just a bad work to be indexing....Microsoft...sheesh.
> >Ok, it's not. This is a known thing, even mentioned in the FAQ on
> >jGuru.
> >For how StandardFilter works it's best to look at the source, it's
> >quite simple. I think I might have mentioned that in the Lucene
> >article on Onjava.com as well....not 100% sure any more :)
> >
> >Otis
> >
> >
> >--- Lukas Zapletal <lz...@root.cz> wrote:
> >> Hello all,
> >>
> >> I have a small problem. Let`s have a word 'Microsoft' indexed in
> >> Lucene.
> >> When I query Microsoft, it returns the document, but when I try
> >> Micro*
> >> then nothing is found. After lowercasing the first letter to
> micro*
> >> Lucene returns the document.
> >>
> >> The same thing is with ?. When I use it, only lower-cased words
> are
> >> matched.
> >>
> >> Is this a bug or Am I missing something?
> >>
> >> ps - where can I find some information how Lucene parse the input
> >> when
> >> using StandardFilter. I mean I don`t know what is ignored and what
> >> not.
> >> For example acronyms (U.S.A), dates (2002-11-07 or 1. 1. 2003)
> etc...
> >> I
> >> cannot find it in the documentation. In the StandardFilter API
> there
> >> is
> >> onthing, it seems to be generated from JavaCC.
> >>
> >> --
> >> Lukas Zapletal [lzap@root.cz]
> >> http://www.tanecni-olomouc.cz/lzap
> >>
> >>
> >>
> >>
> >>
> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: lucene-dev-unsubscribe@jakarta.apache.org
> >> For additional commands, e-mail:
> lucene-dev-help@jakarta.apache.org
> >>
> >
> >
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> >Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
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> >
>
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> >
> >
>
>
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