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https://issues.apache.org/jira/browse/SOLR-11709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16471345#comment-16471345
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Hoss Man commented on SOLR-11709:
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bq. How several stats will looks like? eg how to add min(popularity) right
there?
I wasn't suggesting we do this to support multiple stats on the same domain --
just like you can't currently specify multiple {{type:terms}} facets on the
same domain. You'd have to either specify the domain redundently (or i imagine
it would be more efficient to put the domain on a {{type:query, query:"\*:\*"}}
and nest all the term facets & functions under that?)
----
FWIW: one thing I realize now that hadn't occured to me when i opened this
issue is that customizing the domain on the stat would complicate -- and
probably make it impossible to -- sorting the parent facet buckets by the stat.
> 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)
> Components: Facet Module
> Reporter: Hoss Man
> Priority: Major
>
> 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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