Re: allow segment size to be set to < 1GiB

Hi,

On 2022-11-07 12:52:25 -0500, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> > In the attached patch I renamed --with-segsize= to --with-segsize-mb= /
> > -Dsegsize= to -Dsegsize_mb=, to avoid somebody building with --with-segsize=2
> > or such suddenly ending up with an incompatible build.
> 
> For the purpose of exercising these code paths with the standard
> regression tests, even a megabyte seems large -- we don't create
> very many test tables that are that big.

Good point.


> How about instead allowing the segment size to be set in pages?

In addition or instead of --with-segsize/-Dsegsize? Just offering the number
of pages seems like a not great UI.

I guess we could add support for units or such? But that seems messy as well.

Greetings,

Andres Freund