Re: VLDB Features

NikhilS <nikkhils@gmail.com> writes:
> Any errors which occur before doing the heap_insert should not require
> any recovery according to me.

A sufficient (though far from all-encompassing) rejoinder to that is
"triggers and CHECK constraints can do anything".

> The overhead of having a subtransaction per row is a very valid concern. But
> instead of using a per insert or a batch insert substraction, I am
> thinking that we can start off a subtraction and continue it till we
> encounter a failure.

What of failures that occur only at (sub)transaction commit, such as
foreign key checks?
        regards, tom lane