the "func" construct described in the documentation is the usual way  
to render any SQL function, such as  
sess.execute(func.sp_add_tag(user.id, self.id, value.lower()))

On Apr 25, 2009, at 11:16 PM, Eric wrote:

>
> I have a function in a PostgreSQL DB I need to execute that returns
> nothing. I was told by peers that this is the proper way to do it:
>
> meta.Session.execute("SELECT sp_add_tag('%s', '%s', '%s')" % (user.id,
> self.id, value.lower() ))
>
> BUT this gives us issues with characters like single quotes and SQL
> injections. What is the best way to handle this situation?
>
> >


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