> Postgres has no facility to make it possible to do faceting (histograms). This is a pretty big deal breaker for most kinds of eCommerce. I've seen a few attem

> Postgres has no facility to make it possible to do faceting (histograms). This is a pretty big deal breaker for most kinds of eCommerce. I've seen a few attempts at this, but they are incredibly complex and slow compared to other search engines. why exactly GROUP BY doesn't work here?