Hi Jeff,
I don't know of a query parser that will allow you to acheive this.
However, if you can programmatically construct (at least a component of) your
queries, then you may want to check out Lucene's SpanQuery functionality.
In particular, using your example, if you combine a SpanFirstQuery over a
SpanNearQuery on "white house" (to cover the case of "white house" at the
beginning of a field) with a SpanNearQuery over a SpanRegexQuery for
(?!russian$) - i.e., anything but "russian" - and another SpanNearQuery on
"white house", you may get what you want.
In a lisp-ish query-like syntax:
{or:{first:{near~0:white house}}{near~0:{regex:(?!russian)}{near~0:white house}}
<http://lucene.apache.org/java/2_3_2/api/org/apache/lucene/search/spans/SpanQuery.html>
Steve
On 08/11/2008 at 7:18 PM, Jeff French wrote:
>
> We're trying to perform a query where if our intended search term/phrase
> is part of a specific larger phrase, we want to ignore that particular
> match, but not the entire document (unless of course there are no other
> hits with our intended term/phrase). For example, a query like:
>
> "white house" UNLESS "russian white house"
>
> should not produce a match on the phrase:
>
> "russian white house"
>
> but should match:
>
> "white house"
>
> Where this differs from the NOT operator is that we don't want to rule
> out a document just because it contains "russian white house", we just
> want to ignore the hit, so that this phrase:
>
> "... in the russian white house as opposed to the american white house
> ..."
>
> would return the document.
>
> Can this be accomplished using Lucene or Qsol QueryParser syntax, or do
> we need to write something custom?
> --
> View this message in context:
> http://www.nabble.com/Query-to-ignore-certain-phrases-tp18935560p18935560.html
>
> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
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