Re: autovacuum maintenance_work_mem - Mailing list pgsql-hackers

>> Relevant to this is the question: *when* does vacuum do its memory
>> allocation?  Is memory allocation reasonably front-loaded, or does
>> vacuum keep grabbing more RAM until it's done?
> 
> All at start.

That means that "allocation by halves" would work fine.

--                                  -- Josh Berkus                                    PostgreSQL Experts Inc.
                        http://www.pgexperts.com