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https://issues.apache.org/jira/browse/SOLR-10566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15998735#comment-15998735
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ASF subversion and git services commented on SOLR-10566:
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Commit 66e2c4eae77fbcebeec1151d48e0bc8ff35ed3ec in lucene-solr's branch
refs/heads/branch_6x from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=66e2c4e ]
SOLR-10566: Update CHANGES.txt
> Add timeseries Streaming Expression
> -----------------------------------
>
> Key: SOLR-10566
> URL: https://issues.apache.org/jira/browse/SOLR-10566
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Joel Bernstein
> Attachments: SOLR-10566.patch, SOLR-10566.patch
>
>
> This ticket is to add specific time series support to streaming expressions.
> Under the covers the timeseries expression will use the json facet API.
> sample syntax:
> {code}
> timeseries(collection,
> q="*:*",
> field="rectime_dt",
> start = "2011-04-01T01:00:00.000Z",
> end = "2016-04-01T01:00:00.000Z",
> gap = "+1MONTH",
> count(*),
> sum(price))
> {code}
> This goes nicely with SOLR-10559. The idea is to support expressions that
> cross-correlate and regress time series data.
> {code}
> let(cell(timeseriesA, timeseries(...)),
> cell(timeSeriesB, timeseries(...)),
> list(cell(a, get(timeseriesA)),
> cell(b, get(timeseriesB)),
> cell(stats, regres(col(timeseriesA, count(*)), col(timeseriesB,
> count(*))))))
> {code}
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