[SOLR-14046] Add y-domain parameter to facet2D Stream Evaluator

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: streaming expressions
• Assignee: Unassigned
• Reporter: Joel Bernstein
• Created: 10/Dec/19 20:31
• Updated: 21/Jan/20 16:59

Description

The y-domain parameter will allow the facet2D function to change the query for the y dimension in a facet2D aggregation:

Syntax:

facet2D(stocks, 
        q="ticker_s:jpm", 
        x="yearMonthDay", 
        y="ticker_s", 
        y-domain="*:*", 
        dimensions="50, 50",
        max(change_d)) 

The example above changes the query for the y-dimension to be

*:* 

The main query is still applied to the x-dimension.

This aggregation behavior creates graph adjacency matrices that can be mined for correlations.