Hoss Man created SOLR-11709:
-------------------------------
Summary: JSON "Stats" Facets should support directly specifying a
domain change (for filters/blockjoin/etc...)
Key: SOLR-11709
URL: https://issues.apache.org/jira/browse/SOLR-11709
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Hoss Man
AFAICT, the simple string syntax of JSON Facet Modules "statistic facets" (ex:
{{foo:"min(fieldA)"}} ) means there is no way to request a statistic with a
domain change applied -- stats are always computed relative to it's immediate
parent (ie: the baseset matching the {{q}} for a top level stat, or the
constrained set if a stat is a subfacet of something else)
This means that things like the simple "fq exclusion" in StatsComponent have no
straight forward equivalent in JSON faceting.
The work around appears to be to use a {{type:"query", q:"*:*, domain:...}}
parent and specify the stats you are interested in as sub-facets...
{code}
$ curl 'http://localhost:8983/solr/techproducts/query' -d
'q=*:*&omitHeader=true&fq={!tag=boo}id:hoss&stats=true&stats.field={!max=true
ex=boo}popularity&rows=0&json.facet={
bar: { type:"query", q:"*:*", domain:{excludeTags:boo}, facet: {
foo:"max(popularity)" } } }'
{
"response":{"numFound":0,"start":0,"docs":[]
},
"facets":{
"count":0,
"bar":{
"count":32,
"foo":10}},
"stats":{
"stats_fields":{
"popularity":{
"max":10.0}}}}
{code}
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