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https://issues.apache.org/jira/browse/SOLR-14916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Bernstein updated SOLR-14916:
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Attachment: Screen Shot 2021-04-07 at 12.59.40 PM.png
Screen Shot 2021-04-07 at 12.59.24 PM.png
> Add split parameter to timeseries Streaming Expression
> ------------------------------------------------------
>
> Key: SOLR-14916
> URL: https://issues.apache.org/jira/browse/SOLR-14916
> Project: Solr
> Issue Type: Improvement
> Reporter: Joel Bernstein
> Assignee: Joel Bernstein
> Priority: Major
> Fix For: main (9.0)
>
> Attachments: SOLR-14916.patch, SOLR-14916.patch, SOLR-14916.patch,
> Screen Shot 2021-04-07 at 12.57.54 PM.png, Screen Shot 2021-04-07 at 12.59.24
> PM.png, Screen Shot 2021-04-07 at 12.59.40 PM.png
>
>
> Currently the *timeseries* function only supports aggregations across the
> time dimension. This ticket will add the *split* parameter which will add a
> top level split by categorical field, to produce time lines per each split.
> The limit parameter will also be added and be applied only to split. The sort
> will always be desc on the first aggregation in the first iteration to keep
> the parameters simple.
> Sample syntax:
> {code}
> timeseries(collection1,
> q="*:*",
> field="timefield",
> split="company",
> limit="10",
> gap="+1DAY",
> format="YYYY-dd-MM" ,
> avg(price_f))
> {code}
> The output of this can be easily pivoted into a matrix and correlated or
> clustered like the output of the *facet2D* function. The *diff* and
> *minMaxScale* functions already support operations over matrix rows so it's
> very easy to perform clustering etc.. on this output.
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