Common Rails idioms that kill database performanceCommon Rails idioms that kill database performance By Starr Horne on Jan 3, 2017 I remember the first time I saw rails' ActiveRecord. It was a revelation. This was back in 2005 and I was hand-coding SQL queries for a PHP app. Suddenly, using the database went from being a tedious chore, to being easy and - dare I say - fun. ...then I started to notice the performance issues. ActiveRecord itself wa
