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From: "George Aroush" <george@aroush.net>
To: <java-user@lucene.apache.org>
Subject: RE: Can a Lucene field be renamed in a Lucene index?
Date: Wed, 29 Aug 2007 22:33:28 -0400
Message-ID: <085101c7eaae$26582b30$0301a8c0@aroushlt>
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In-Reply-To: <1AB68811-2A68-4295-9548-268BE41D7D38@ehatchersolutions.com>

Just read the thread.  Unfortunately, it doesn't offer a solution.

Is it possible to write a tool that will read the source index, and write it
to an output index with the field renamed?  No, the raw-text is not stored
in the Lucene index.

Thanks.

-- George

> -----Original Message-----
> From: Erik Hatcher [mailto:erik@ehatchersolutions.com] 
> Sent: Wednesday, August 29, 2007 10:10 PM
> To: java-user@lucene.apache.org
> Subject: Re: Can a Lucene field be renamed in a Lucene index?
> 
> there was just this thread here recently:
> 
>    <http://www.nabble.com/How-to-rename-fields-in-an-index-
> tf4310043.html#a12269902>
> 
> hope that helps.
> 
> 	Erik
> 
> 
> On Aug 29, 2007, at 10:03 PM, George Aroush wrote:
> 
> > Hi everyone,
> >
> > I have the following need and I wander what are my options or if 
> > anyone run into it and has a solution / suggestion.
> >
> > I'm indexing a SQL database.  Each table is a Lucene index. 
>  Now, in 
> > table "A", I have a field called "Foo".  When I index it 
> into Lucene, 
> > I also end up with a field called "Foo".  Later on, the SQL 
> database 
> > administrator, will change the field name from "Foo" to 
> "Bar".  Once 
> > this happens, any new records added to table "A" will be 
> indexed into 
> > Lucene as "Bar".
> >
> > The issue is this, Lucene index for table "A" now has 
> documents with 
> > some having a field called "Foo" and others with "Bar".  This is 
> > problematic because now a user can't just search for "Foo:dog", but 
> > must search for "Foo:dog Bar:dog".
> >
> > So, what are my options here?  No, I can't re-index.  
> Ideally, I would 
> > like to be able to say to Lucene, "rename the field 'Foo' 
> to 'Bar' in 
> > the index
> > 'A'" (even if it means using private APIs).  Is this possible?   
> > Have you run
> > into this problem?  What was your solution?
> >
> > Regards,
> >
> > -- George
> >
> >
> > 
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