Re: Vacuum improvement

Gavin Sherry <swm@linuxworld.com.au> writes:
> have a parameter which specified how much of the table is vacuumed. That
> is, you could specify:
> VACUUM FULL test 20 precent;

Erm ... but which 20 percent?  In other words, how could you arrange for
repeated applications of such a command to cover the whole table, and
not just retrace an already-cleaned-out portion?

I don't object to the idea in principle, but I am not sure how to
implement it in practice.
        regards, tom lane