How to build “Star Rating” report in BigQuery (or sparklines, or color gradients)

Question

Suppose I have the followng sample input:

WITH Ratings AS (
    (SELECT \'A\' name, 2 score) UNION ALL
    (SELECT \'B\' name, 0 score) UNION ALL
    (SELECT \'C         


        

Answer 1

My entry does a color gradient, because sparklines only look good with certain fonts - and that's not a font that the BigQuery web UI uses.

During a day, when is Stack Overflow the most active per tag:

#standardSQL
CREATE TEMP FUNCTION barchart(v ARRAY, mm STRUCT) AS ((
    SELECT STRING_AGG(SUBSTR('