Phrase Query

[Aruna Raghavan <Ar...@opin.com>]

Hello All,
Question on phrase queries-
I have a medical reports document that has "Anesth, Knee" in it.
If I use phrase query, it works but so does "Anesth Knee" (notice that the
comma is missing.)

Does Lucene remove special characters before indexing the documents?

Thanks!

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Re: Phrase Query

[Winton Davies <wd...@cs.stanford.edu>]

Yep, look for the Tokenizer/Analyzer code.  I believe it removes all 
non-alpha/numeric.

Cheers,
  Winton

>Hello All,
>Question on phrase queries-
>I have a medical reports document that has "Anesth, Knee" in it.
>If I use phrase query, it works but so does "Anesth Knee" (notice that the
>comma is missing.)
>
>Does Lucene remove special characters before indexing the documents?
>
>Thanks!
>
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>To unsubscribe, e-mail:   <ma...@jakarta.apache.org>
>For additional commands, e-mail: <ma...@jakarta.apache.org>


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Winton Davies
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Re: Phrase Query

[Ian Lea <ia...@blackwell.co.uk>]

> Hello All,
> Question on phrase queries-
> I have a medical reports document that has "Anesth, Knee" in it.
> If I use phrase query, it works but so does "Anesth Knee" (notice that the
> comma is missing.)
> 
> Does Lucene remove special characters before indexing the documents?

Depends on the Analyzer you use.  Some certainly do, including
StandardAnalyzer.  You can build your own analyzer if you have
special requirements.



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Ian.

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