Let's say I have dimensions like country, content, subscriptionType, and I'd like to get the 3 most common fields grouped by platform say web, app, etc. How would I go about doing this?
An ideal output would be something like this
----- |country |content |subscriptionType
web|us,uk,camusic,video,audio|seo-trial,sem-trial,perf-trial
app|us, ca, ch|music, video, audio|seo-trial,sem-trial,perf-trial
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