Here's what I have.
SELECT CASE WHEN DATE_FORMAT(a.lastLogin, 'W') = DATE_FORMAT(NOW(), 'W') THEN 'Today' ELSE DATE_FORMAT(a.lastLogin, 'W') END AS lastlogin FROM authors a
I am pretty sure there is a much simpler way to do this that I'm missing.
DATE(a.lastlogin) = DATE(NOW())
the DATE() function normalizes a datetime column to just the date portion (e.g. 2009-11-16 16:45:23 would become just 2009-11-16)
DATE()
2009-11-16 16:45:23
2009-11-16