Interval faceting is similar to range faceting, but it allows us to set variable intervals and count the number of documents that have values within those intervals in the specified field. Interval faceting is likely to be better with multiple intervals for the same fields, while a facet query is likely to be better in environments where a filter cache is more effective:
| Parameter | Behavior | Default value |
|
facet.interval |
To specify a field where we want to apply the interval. It can be used multiple times for multiple fields in a single request. For example: facet.interval=price&facet.interval=popularity |
|
|
facet.interval.set |
To specify a set of intervals for the field. It can be specified multiple times to indicate multiple intervals. For example: f.price.facet.interval.set=[0,10]&f.price.facet.interval.set=(10,100] (1,100) -> include values greater than 1 and lower than 100 |
Example: Faceting query for field price >=10 and price < 20
URL: http://localhost:8983/solr/techproducts/select?q=*:*&facet=true&facet.interval=price&f.price.facet.interval.set=[10,20)
Response:
"facet_counts":{
"facet_queries":{},
"facet_fields":{},
"facet_ranges":{},
"facet_intervals":{
"price":{
"[10,20)":2}},
"facet_heatmaps":{}
}