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From <raghavendra.k....@barclays.com>
Subject RE: Wildcard searches
Date Thu, 06 Feb 2014 16:48:37 GMT
Thank you, Tim.

I have read that ComplexPhraseQueryParser has issues while searching in more than one field.
In my case, I need to search the value in multiple fields of each document.

Do you think it is possible? Also, could you please direct me to any useful links for ComplexPhraseQueryParser
that you may be aware of? I am looking for some examples. Thanks!

Regards,
Raghu


-----Original Message-----
From: Allison, Timothy B. [mailto:tallison@mitre.org] 
Sent: Thursday, February 06, 2014 8:02 AM
To: java-user@lucene.apache.org
Subject: RE: Wildcard searches

Ditto Jack on ComplexPhraseQueryParser.

See also: https://issues.apache.org/jira/i#browse/LUCENE-5205

-----Original Message-----
From: Jack Krupansky [mailto:jack@basetechnology.com]
Sent: Wednesday, February 05, 2014 6:59 PM
To: java-user@lucene.apache.org
Subject: Re: Wildcard searches

Take a look at the complex phrase query parser.

See:
http://lucene.apache.org/core/4_6_0/queryparser/org/apache/lucene/queryparser/complexPhrase/ComplexPhraseQueryParser.html

See also:
https://issues.apache.org/jira/browse/LUCENE-1486

-- Jack Krupansky

-----Original Message-----
From: raghavendra.k.rao@barclays.com
Sent: Wednesday, February 5, 2014 6:30 PM
To: java-user@lucene.apache.org
Subject: Wildcard searches

Hi,

Can Lucene support wildcard searches such as the ones shown below?

Indexed value is "XYZ CORPORATION LIMITED".

XYZ CORPORATION LIMI*
XYZ CORPORATION *MIT*
XYZ *PORAT* LIMI*
*YZ CORPO* LIMITE*

In other words, the flexibility for the user to provide a wild card at any position, in a
situation where they aren't sure about the exact value. 
Ignoring the performance aspect, please suggest if it is even possible. If yes, please provide
further inputs on how to approach it such as Analyzer / Tokenizer to consider, whether PhraseQueries
can be formed etc.

Any input is greatly appreciated.

Regards,
Raghu


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_______________________________________________

This message is for information purposes only, it is not a recommendation, advice, offer or
solicitation to buy or sell a product or service nor an official confirmation of any transaction.
It is directed at persons who are professionals and is not intended for retail customer use.
Intended for recipient only. This message is subject to the terms at: www.barclays.com/emaildisclaimer.

For important disclosures, please see: www.barclays.com/salesandtradingdisclaimer regarding
market commentary from Barclays Sales and/or Trading, who are active market participants;
and in respect of Barclays Research, including disclosures relating to specific issuers, please
see http://publicresearch.barclays.com.

_______________________________________________

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