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https://issues.apache.org/jira/browse/SOLR-14476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein updated SOLR-14476:
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    Attachment: SOLR-14476.patch

> 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
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: streaming expressions
>            Reporter: Joel Bernstein
>            Assignee: Joel Bernstein
>            Priority: Major
>         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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