Yonik Seeley created SOLR-7306:
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Summary: Add percentiles to Facet Module
Key: SOLR-7306
URL: https://issues.apache.org/jira/browse/SOLR-7306
Project: Solr
Issue Type: New Feature
Reporter: Yonik Seeley
Use Ted Dunnings t-digest to add distributed percentile support to the new
Facet Module (aka "JSON Facets").
{code}
// single percentile over complete doc set
json.facet={ median : 'percentile(my_field,50)' }
// calculate multiple percentiles of a function
json.facet={multi:'percentile( mul(f1,f2), 1,10,50,90,99)' }
// calculate the median of each facet bucket and sort by that value
json.facet={categories:{terms:{
field:cat ,
sort:'median desc' ,
facet : {
median : 'percentile(myfield,50)' ,
otherstat : 'sum(something_else)'
}
}}}
{code}
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