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https://issues.apache.org/jira/browse/SOLR-2366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13881953#comment-13881953
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Ted Sullivan commented on SOLR-2366:
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I agree with [~janhoy]'s earlier comment (9/Sep/11):
| One thing this improvement needs to tackle is how to return the range buckets
in the Response
As is done in facet.query. Unless we do this, the response is a bit too
cryptic. I would vote for adding this code before committing it (I'll
volunteer) and spinning off the facet.range.spec or facet.sequence idea to a
new issue as Shalin suggests. So for a facet.range.start=0,
facet.range.end=1000, facet.range.gap=10,90,900 the labels would be as Jan
suggests: [0 TO 10}, [10 TO 100}, [100 TO 1000}. This would be done even if the
gaps are constant. As it is now, all you see in the response are the range
starts rather than the ranges.
> Facet Range Gaps
> ----------------
>
> Key: SOLR-2366
> URL: https://issues.apache.org/jira/browse/SOLR-2366
> Project: Solr
> Issue Type: Improvement
> Reporter: Grant Ingersoll
> Assignee: Shalin Shekhar Mangar
> Priority: Minor
> Fix For: 4.7
>
> Attachments: SOLR-2366.patch, SOLR-2366.patch, SOLR-2366.patch
>
>
> There really is no reason why the range gap for date and numeric faceting
> needs to be evenly spaced. For instance, if and when SOLR-1581 is completed
> and one were doing spatial distance calculations, one could facet by function
> into 3 different sized buckets: walking distance (0-5KM), driving distance
> (5KM-150KM) and everything else (150KM+), for instance. We should be able to
> quantize the results into arbitrarily sized buckets.
> (Original syntax proposal removed, see discussion for concrete syntax)
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