Re: Parameter value from (mb/gb) to bytes

From: Christoph Moench-Tegeder <cmt(at)burggraben(dot)net>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: Thomas Kellerer <shammat(at)gmx(dot)net>, pgsql-general <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: Parameter value from (mb/gb) to bytes
Date: 2020-10-14 15:17:26
Message-ID: 20201014151726.GA50753@elch.exwg.net
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## Magnus Hagander (magnus(at)hagander(dot)net):

> Actually, it doesn't have to be in 8k pages, that depends on the build
> options. So if you want to be perfectly correct, you should probably
> multiply with current_setting('block_size') instead of a hardcoded 8192 :)

More self-contained:
select pg_size_bytes(setting) * pg_size_bytes(unit)
from pg_settings
where name = 'shared_buffers';

I guess that's what that unit column is there for.

Regards,
Christoph

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