query where date = Date.today with Rails, MySQL, and Active Record

Question

I see in the Active Record docs, you can query for a date using a greater than / less than comparison. However, what if you want to select where date = Date.today or must I quer

Answer 1

I think this is a DUP of this question:

How to select date from datetime column?

Subscription.where("DATE(created_at) = ?", Date.today).count

I'm pretty sure this works in MySQL and PostgreSQL, but I'm not sure if it's a SQL standard.

Wikipedia seems to think TO_DATE would be the standard: http://en.wikipedia.org/wiki/SQL#Date_and_time

That didn't work for me in PostgreSQL though.