Re: Pre-allocated free space for row

> > The bgwriter could "update" all columns of dead heap tuples in heap 
> > pages to NULL and thus also gain free space without the need to
touch 
> > the indexes.
> > The slot would stay used but it would need less space.
> 
> Not unless it's running a transaction (consider TOAST updates).

Ok, you could leave all toast pointers and the toast table as is.

Andreas