On Jul 27, 2005, at 4:32 PM, Scott Ganyo wrote:
Actually, I believe the correct answer is an empty result set.

Oops.... I really screwed that one up!  :O

You're absolutely right, my apologies.

    Erik



On Jul 27, 2005, at 12:14 PM, Erik Hatcher wrote:


On Jul 27, 2005, at 12:40 PM, Peter Gelderbloem wrote:


I wonder what would happen



An exception :)




Peter Gelderbloem -----Original Message-----
From: Erik Hatcher [mailto:[EMAIL PROTECTED]
Sent: 27 July 2005 17:36
To: java-user@lucene.apache.org
Subject: Re: Quick newbie question


On Jul 27, 2005, at 12:22 PM, Andrew Boyd wrote:




Of course you can do the inverse of what Erik said.
That is search for a term that you know is not in the index and use
the NOT operator.




Ummm... no you can't.   A purely negative query is not allowed with
Lucene.

     Erik






Andrew

-----Original Message-----
From: Erik Hatcher <[EMAIL PROTECTED]>
Sent: Jul 27, 2005 10:49 AM
To: java-user@lucene.apache.org
Subject: Re: Quick newbie question


On Jul 27, 2005, at 11:07 AM, Federico Tonioni wrote:





Hi all!
I have just a simple question

How can I retrieve all documents in an index by using QueryParser?
I thought

Query query = QueryParser.parse("*", "contents",
                    new StandardAnalyzer());

might be the solution, but it's not:)





In general, you can't.  Many have used a technique of indexing a
single field with the same value for all documents and done a query
for field:value to find all documents.

     Erik


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Andrew Boyd
Software Architect
Sun Certified J2EE Architect
B&B Technical Services Inc.
205.422.2557

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