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https://issues.apache.org/jira/browse/SOLR-7553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yonik Seeley updated SOLR-7553:
-------------------------------
Attachment: SOLR-7553.patch
Here's the patch. I added a new "hll" function rather than change the existing
"unique" function. It also just uses the same defaults as "stats" does... we
can add parameter tweaking later.
Example:
json.facet={mycount:"hll(myfield)"}
> Add hyperloglog aggregator
> ---------------------------
>
> Key: SOLR-7553
> URL: https://issues.apache.org/jira/browse/SOLR-7553
> Project: Solr
> Issue Type: Improvement
> Components: Facet Module
> Reporter: Yonik Seeley
> Assignee: Yonik Seeley
> Fix For: 5.2
>
> Attachments: SOLR-7553.patch
>
>
> Add an hll function (hyperloglog) alternative to unique() for better
> estimating cardinality.
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