It’s not about sending your passwords in clear text to your RDBMS. You’d still use bcrypt like you normally would but instead of querying the password table directly you’d have that prewritten as a stored procedure. That way you can have different permissions for the password table.
Some frameworks and/or other managed solutions might already be doing this but it’s worth mentioning anyway since people are talking about hand rolling their own auth.
I don’t know why I added the part about offloading encryption though. That doesn’t make sense. I guess that will teach me talking security before my first coffee of the day