Horton

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

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
Cc: Andrew Dunstan <andrew@dunslane.net>, pgsql-hackers@postgresql.org, Peter Geoghegan <pg@bowt.ie>
Date: 2022-11-17T15:48:52Z
Lists: pgsql-hackers 
Andres Freund <andres@anarazel.de> writes:
> On 2022-11-17 09:58:48 -0500, Andrew Dunstan wrote:
>> Are we going to impose some sane minimum, or leave it up to developers
>> to discover that for themselves?

> I don't think we should. It's actually useful to e.g. use 1 page sized
> segments for testing, and with one exceptions the tests pass with it too. Do
> you see a reason to impose one?

Yeah, I think we should allow setting it to 1 block.  This switch is
only for testing purposes (I hope the docs make that clear).

			regards, tom lane

Commits

  1. Add option to specify segment size in blocks