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Posted to issues@solr.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2022/01/26 17:39:00 UTC
[jira] [Commented] (SOLR-14476) Add percentiles and standard deviation aggregations to stats, facet and timeseries Streaming Expressions
[ https://issues.apache.org/jira/browse/SOLR-14476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17482640#comment-17482640 ]
ASF subversion and git services commented on SOLR-14476:
--------------------------------------------------------
Commit 304c31fd137d41d6ea1b402f99973b905732f9ff in solr's branch refs/heads/main from Joel Bernstein
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=304c31f ]
SOLR-14476: Ref guide update
> Add percentiles and standard deviation aggregations to stats, facet and timeseries Streaming Expressions
> --------------------------------------------------------------------------------------------------------
>
> Key: SOLR-14476
> URL: https://issues.apache.org/jira/browse/SOLR-14476
> Project: Solr
> Issue Type: New Feature
> Components: streaming expressions
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Fix For: 8.6
>
> Attachments: SOLR-14476.patch, SOLR-14476.patch, SOLR-14476.patch, SOLR-14476.patch, SOLR-14476.patch, SOLR-14476.patch, SOLR-14476.patch, SOLR-14476.patch
>
>
> This ticket will add the *per* (percentile) and *std* (standard deviation) aggregations to the *stats*, *facet* and *timeseries* Streaming Expressions. Syntax:
>
> {code:java}
> facet(logs, buckets="collection_s", per(qtime_i, 50), std(qtime_i)) {code}
> The stats function will also be reimplemented using JSON facets rather than the stats component as part of this ticket. The main reason is that JSON facets syntax is easier to work with for percentiles, but it also standardized are pushed down aggregations to JSON facets.
> In a separate ticket *per* and *std* aggregations will be added to the *rollup*, *hashRollup* and *nodes* Streaming Expressions.
>
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