[SOLR-10566] Add timeseries Streaming Expression

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Resolved
• Fix Version/s: 6.6, 7.0
• Assignee: Unassigned
• Reporter: Joel Bernstein
• Created: 25/Apr/17 15:39
• Updated: 08/Oct/19 14:51
• Resolved: 05/May/17 18:30

Description

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:

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))

This goes nicely with SOLR-10559. The idea is to support expressions that cross-correlate and regress time series data.

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(*))))))