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https://issues.apache.org/jira/browse/SOLR-14007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17055499#comment-17055499
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Joel Bernstein commented on SOLR-14007:
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I've been giving this some thought lately as it's time to add percentiles to
the facet Streaming Expression. My primary goal is not performance, but instead
providing a table like return format. So I was planning on using this syntax
and not supporting a nested list within a single percentile:
{code:java}
facet(collection, buckets="x", percentile(y, 50), percentile(y, 75), avg(y))
{code}
This gives a nice flat response which can be easily visualized and fits nicely
into a SQL like table.
Probably doesn't make sense for JSON facets directly though as JSON facets is
not interested in returning table like structures.
> Difference response format for percentile aggregation
> -----------------------------------------------------
>
> Key: SOLR-14007
> URL: https://issues.apache.org/jira/browse/SOLR-14007
> Project: Solr
> Issue Type: Sub-task
> Components: Facet Module
> Reporter: Munendra S N
> Assignee: Munendra S N
> Priority: Major
> Attachments: SOLR-14007.patch
>
>
> For percentile,
> In Stats component, the response format for percentile is {{NamedList}} but
> in JSON facet, the format is either array or single value depending on number
> of percentiles specified.
> Even if JSON percentile doesn't use NamedList, response format shouldn't
> change based on number of percentiles
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