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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-10566) Add timeseries Streaming Expression
Date Wed, 07 Jun 2017 01:46:18 GMT

    [ https://issues.apache.org/jira/browse/SOLR-10566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16039984#comment-16039984
] 

ASF subversion and git services commented on SOLR-10566:
--------------------------------------------------------

Commit 204447ffda81913d7ae75e42ed87a5c5400d9b6a in lucene-solr's branch refs/heads/branch_6_6
from [~joel.bernstein]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=204447f ]

SOLR-10566: Add documentation


> 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
>             Fix For: 6.6, master (7.0)
>
>         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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