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FAQ
My question should really be on "fuzzy search". Is there a minimum
length requirement for fuzzy search to start? For example, would
"an~0.8" kick off fuzzy search?

Thanks,
Andy
On Wed, Mar 30, 2011 at 4:02 PM, Erick Erickson wrote:
Uhhhm, doesn't "term1 term2"~5 work? If not, why not?

You might get some use from
http://lucene.apache.org/java/2_4_0/queryparsersyntax.html

Or if that's not germane, perhaps you can explain your use case.

Best
Erick
On Wed, Mar 30, 2011 at 5:49 PM, Andy Yang wrote:
Is there a minimum string length requirement for proximity search? For
example, would "a~" or "an~" trigger proximity search? The result
would be horrible if there is no such requirement.

Thanks,
Andy

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  • Biedermann,S.,Fa. Post Direkt at Mar 31, 2011 at 7:40 am ⇧
    This is how I understand the process (in 3.0.2):

    No, there is no length requirement.

    What happens in a fuzzy query is that it first rewrites to a Boolean query that contains all the terms as term queries that fuzzy match to the given pattern. In this rewrite all index terms must be fuzzy matched.

    After rewriting, the rewritten query is "executed".

    Since 'an~0.8' can only match 'an' because of the '~0.8', the "executed" query only contains the term query 'an'. But the rewriting iterates through all of the terms. This may be very slow.


    -----Ursprüngliche Nachricht-----
    Von: Andy Yang
    Gesendet: Donnerstag, 31. März 2011 01:57
    An: [email protected]
    Cc: Erick Erickson
    Betreff: Re: minimum string length for fuzzy search

    My question should really be on "fuzzy search". Is there a minimum
    length requirement for fuzzy search to start? For example, would
    "an~0.8" kick off fuzzy search?

    Thanks,
    Andy
    On Wed, Mar 30, 2011 at 4:02 PM, Erick Erickson wrote:
    Uhhhm, doesn't "term1 term2"~5 work? If not, why not?

    You might get some use from
    http://lucene.apache.org/java/2_4_0/queryparsersyntax.html

    Or if that's not germane, perhaps you can explain your use case.

    Best
    Erick
    On Wed, Mar 30, 2011 at 5:49 PM, Andy Yang wrote:
    Is there a minimum string length requirement for proximity search? For
    example, would "a~" or "an~" trigger proximity search? The result
    would be horrible if there is no such requirement.

    Thanks,
    Andy

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