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Posted to issues@lucene.apache.org by "Mikhail Khludnev (Jira)" <ji...@apache.org> on 2020/05/27 21:20:00 UTC
[jira] [Commented] (SOLR-14518) Add support for partitioned unique
agg to JSON facets
[ https://issues.apache.org/jira/browse/SOLR-14518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17118105#comment-17118105 ]
Mikhail Khludnev commented on SOLR-14518:
-----------------------------------------
[~jbernste] I suppose, second boolean argument doesn't give a clue to the user. Even if I guess that's this argument controls this aspect of the algorithm. How I can guess whether true or false fits to my need. Also, I want to know if {{uniqueBlock(field)}} already covers this usecase?
> Add support for partitioned unique agg to JSON facets
> -----------------------------------------------------
>
> Key: SOLR-14518
> URL: https://issues.apache.org/jira/browse/SOLR-14518
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Facet Module
> Reporter: Joel Bernstein
> Priority: Major
>
> There are scenarios where documents are partitioned across shards based on the same field that the *unique* agg is applied to with JSON facets. In this scenario exact unique counts can be calculated by simply sending the bucket level unique counts to the aggregator where they can be summed. Suggested syntax is to add a boolean flag to the unique aggregation function: *unique*(partitioned_field, true).
> The *true* value turns on the "partitioned" unique logic. The default is false.
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