> On Oct 20, 2022, at 10:29, Ron <ronljohnso...@gmail.com> wrote:
> There's no pre-allocation in Postgresql.

This is correct in that you can't say "please allocate 3GB for this table for 
me now."  The number of pages that are added to the end of a file isn't always 
one though; it can allocate more based on recent activity.

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