Line bar combo chart

This topic contains an example of a line bar combo chart.

The following example contains one GROUP BY statement and two metrics:
RETURN NumCases AS SELECT 
    AVG("Unit Sale Price ($)") AS "Avg Sales Price", 
    AVG("Product Avg National Sales Price ($)") AS "Avg National Sales Price" 
GROUP BY "Varietals" ORDER BY "Avg National Sales Price"

It produces a line bar combo chart comparing the "Avg Sales Price" metric to the "Avg National Sales Price" for each varietal: