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From Erik Hatcher <>
Subject Re: Tagging
Date Wed, 14 Feb 2007 01:27:54 GMT
There is also the possibility of keeping tags with the original  
documents and having them individually updated without having to  
resend the original full text as well: < 

And yeah, Peter is a solr4lib kinda guy, doing some way cool stuff  
with Lucene and Solr already: < 


With separate indexes we're back to the relational model that adds a  
lot of complexity.  For example, I cannot use MoreLikeThis with tags  
to allow commonly tagged objects to be considered similar.  I'm sure  
there are other ways to implement that sort of thing, though I've not  
thought it through.


On Feb 13, 2007, at 6:17 PM, Yonik Seeley wrote:

> On 2/13/07, Binkley, Peter <> wrote:
>> I still wonder if there's a good way of storing the tags outside the
>> Lucene index and using them via facets whose bitsets are manipulated
>> directly rather than being populated from the index. In my project,
>> reindexing a documents whenever a user adds a tag is very very bad,
>> since we're indexing potentially hundreds of pages of full text in  
>> the
>> body field of the document. A solution that gets the tag into the  
>> system
>> immediately without forcing a reindexing of the document is  
>> essential.
> Interesting... what are you indexing that is that large, the book  
> contents?
> You could build a custom request handler and store tag info outside
> the index.  You could also store it inside the index in separate
> documents as Erik does with Collex.
> For a more general solution, I'm thinking a separate lucene index
> might be ideal.
> -Yonik

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