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Posted to issues@lucene.apache.org by "Joel Bernstein (Jira)" <ji...@apache.org> on 2020/05/28 00:27:00 UTC
[jira] [Comment Edited] (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=17118178#comment-17118178 ]
Joel Bernstein edited comment on SOLR-14518 at 5/28/20, 12:26 AM:
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There are two ways to co-locate records on the same shard, one is block join and the other is composite id routing. This would provide fast unique functionality for those that are using composite id routing.
was (Author: joel.bernstein):
There are two ways to co-locate records data on the same shard, one is block join and the other is composite id routing. This would provide fast unique functionality for those that are using composite id routing.
> 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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