Jorge Godoy escribió:
> Just to repeat my question:
>
> (I don't want to write a function, I can do that pretty easily... And I was
> asking if there existed some feature on the database that... It's just a
> curiosity)
>
> Given a date X it would return me the first day of the week so that I can
> make this first day an arbitrary day, e.g. Friday or Wednesday.
When you say "it would return", what's the "it"?
I wasn't proposing to use any function, just putting a simple expression
in the SELECT's result list (and maybe the GROUP BY, etc).
--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.
