Yonik Seeley created SOLR-9603:
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Summary: Facet bucket filters
Key: SOLR-9603
URL: https://issues.apache.org/jira/browse/SOLR-9603
Project: Solr
Issue Type: New Feature
Security Level: Public (Default Security Level. Issues are Public)
Components: Facet Module
Reporter: Yonik Seeley
"filter" may be a bit of an overloaded term, but it would be nice to be able to
filter facet buckets by additional things, like the metrics that are calculated
per bucket.
This is like the HAVING clause in SQL.
Example of a facet that would group by author, find the average review rating
for that author, and filter out authors (buckets) with less than a 3.5 average.
{code}
reviews : {
type : terms,
field: author,
sort: "x desc",
having: "x >= 3.5",
facet : {
x : avg(rating)
}
}
{code}
This functionality would also be useful for "pushing down" more calculations to
the endpoints for streaming expressions / SQL.
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