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https://issues.apache.org/jira/browse/LUCENE-4272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13537402#comment-13537402
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Robert Muir commented on LUCENE-4272:
-------------------------------------

{quote}
I'll focus on performance first because I think that we should give a good 
solution for DOCS_ONLY type of fields.
{quote}

I dont know about this. 

To me its not a case of "progress not perfection". I don't see the design for 
LUCENE-4258 scaling beyond DOCS_ONLY + OMIT_NORMS fields.

                
> another idea for updatable fields
> ---------------------------------
>
>                 Key: LUCENE-4272
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4272
>             Project: Lucene - Core
>          Issue Type: New Feature
>            Reporter: Robert Muir
>
> I've been reviewing the ideas for updatable fields and have an alternative
> proposal that I think would address my biggest concern:
> * not slowing down searching
> When I look at what Solr and Elasticsearch do here, by basically reindexing 
> from stored fields, I think they solve a lot of the problem: users don't have 
> to "rebuild" their document from scratch just to update one tiny piece.
> But I think we can do this more efficiently: by avoiding reindexing of the 
> unaffected fields.
> The basic idea is that we would require term vectors for this approach (as 
> the already store a serialized indexed version of the doc), and so we could 
> just take the other pieces from the existing vectors for the doc.
> I think we would have to extend vectors to also store the norm (so we dont 
> recompute that), and payloads, but it seems feasible at a glance.
> I dont think we should discard the idea because vectors are slow/big today, 
> this seems like something we could fix.
> Personally I like the idea of not slowing down search performance to solve 
> the problem, I think we should really start from that angle and work towards 
> making the indexing side more efficient, not vice-versa.

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