Tomás Fernández Löbbe created SOLR-7795:
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Summary: Fold Interval Faceting into Range Faceting
Key: SOLR-7795
URL: https://issues.apache.org/jira/browse/SOLR-7795
Project: Solr
Issue Type: Task
Reporter: Tomás Fernández Löbbe
Fix For: 5.3, Trunk
Now that range faceting supports a "filter" and a "dv" method, and that
interval faceting is supported on fields with {{docValues=false}}, I think we
should make it so that interval faceting is just a different way of specifying
ranges in range faceting, allowing users to indicate specific ranges.
I propose we use the same syntax for intervals, but under the "range" parameter
family:
{noformat}
facet.range=price&
f.price.facet.range.set=[0,10]&
f.price.facet.range.set=(10,100]
{noformat}
The counts for those ranges would come in the response also inside of the
"range_facets" section. I'm not sure if it's better to include the ranges in
the "counts" section, or in a different section (intervals?sets?buckets?). I'm
open to suggestions.
{code}
"facet_ranges":{
"price":{
"counts":[
"[0,10]",3,
"(10,100]",2]
}
}
{code}
or…
{code}
"facet_ranges":{
"price":{
"intervals":[
"[0,10]",3,
"(10,100]",2]
}
}
{code}
We should support people specifying both things on the same field.
Once this is done, "interval faceting" could be deprecated, as all it's
functionality is now possible through range queries.
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