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From Erik Hatcher <e...@ehatchersolutions.com>
Subject Re: Atomic index/search for a phrase
Date Thu, 07 Sep 2006 10:18:44 GMT
A single TermQuery is surely the fastest query of all.   But, what  
are you really trying to do?  It is not generally useful to index  
things untokenized except for precise key-like fields but not for  
full-text ones.

	Erik


On Sep 6, 2006, at 11:51 PM, Venkateshprasanna wrote:

>
> Which is more efficient with respect to performance?
>       Indexing a phrase as it is and searcing with the help of a  
> TermQuery
> OR
>       Storing only single words in index and making use of quoted  
> search
> phrases?
>
> Regards,
> Venkateshprasanna
>
> If you index "A Phrase" as untokenized, you would find it with a
> TermQuery for "A Phrase".  You must use exact case.  If you're using
> QueryParser, the text get analyzed and most analyzers lowercase.  If
> this expression is quoted it would become a PhraseQuery with two
> terms, or if it is unquoted it would become a BooleanQuery with two
> TermQuery clauses - either way it would not match if you indexed the
> phrase as untokenized.
>
>
> -- 
> View this message in context: http://www.nabble.com/Atomic-index- 
> search-for-a-phrase-tf1250772.html#a6183788
> Sent from the Lucene - Java Users forum at Nabble.com.
>
>
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