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Posted to solr-user@lucene.apache.org by Erik Hatcher <er...@ehatchersolutions.com> on 2009/07/20 21:52:29 UTC

Re: hierarchical faceting discussion

I was particularly surprised by the SOLR-64 numbers.  What makes it's  
response so huge (and thus slow) to return the entire tree of facet  
counts?

	Erik


On Jul 19, 2009, at 5:35 PM, Erik Hatcher wrote:

> I've posted the details of some experiments I just did comparing/ 
> contrasting two approaches for faceting on documents within  
> hierarchical structures: http://wiki.apache.org/solr/HierarchicalFaceting
>
> I'm sure I'm only scratching the service with the currently  
> implementations of both SOLR-64 and SOLR-792.  Alternative  
> approaches are welcome!   As I said on the wiki page, there won't be  
> any single method that works in all cases - it will depend on how  
> the hierarchical counts are needed - as an entire tree?  (not likely  
> in large taxonomic cases!)  How are level pruned counts needed?   
> Implementation-wise, seems like payloads could be be useful for some  
> use cases.
>
> What are the use cases?
>
> What types and sizes of hierarchies are folks dealing with out there  
> in the real world?
>
> 	Erik
>