Mailing-List: contact java-dev-help@lucene.apache.org; run by ezmlm
Precedence: bulk
Reply-To: java-dev@lucene.apache.org
Received-SPF: neutral (herse.apache.org: local policy)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
  s=dk20050327; d=ix.netcom.com;
  b=mfADyjaGh9SibXhxEk53sEAYM71yd+loeh4i15W5BEt9hXcqkmWAhSN4HOmW/fwk;
  h=Received:Mime-Version:Content-Transfer-Encoding:Message-Id:Content-Type:To:From:Subject:Date:X-Mailer:X-ELNK-Trace:X-Originating-IP;
Mime-Version: 1.0 (Apple Message framework v752.3)
Content-Transfer-Encoding: 7bit
Message-Id: <789D9A82-7E1E-4FA0-990C-46D29757F41A@ix.netcom.com>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
To: Lucene-Dev <java-dev@lucene.apache.org>
From: robert engels <rengels@ix.netcom.com>
Subject: non indexed field query clauses? help wanted
Date: Sat, 24 Mar 2007 16:00:59 -0500

I see that there is a lot of activity going on with query clauses  
(FunctionQuery, etc.)

Has anyone thought again about having a query clause that operated on  
stored (non-indexed) values?

It would seem that a query optimizer would want to evaluate these  
queries last, since they obviously would be "poorer" performing, and  
you would want to limit the number of documents retrieved.

I understand that this is not trivial, or may not perform very well,  
since you might have a query like

(+indexedterm +storedterm) OR (+storedterm2) AND (storedterm >=  
somevalue and storedterm2<=somevalue)

in which every document would need to be searched (to match  
+storedterm2).

I also understand that this brings Lucene closed to a db, but it  
would be really helpful in many cases, since it is not possible to  
evaluate ANY query against a document because indexed non-stored  
fields are not available to match against easily.

I am just out of time at this point to do the work required to do  
this correctly.

I am fairly convinced I can get our firm to offer a cash bounty to  
the developer who implements it !

Let me know,
Robert Engels


---------------------------------------------------------------------
To unsubscribe, e-mail: java-dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-dev-help@lucene.apache.org