public inbox for [email protected]  

help / color / mirror / Atom feed

From: Dagfinn Ilmari Mannsåker <[email protected]>
To: Dean Rasheed <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: random() function documentation
Date: Tue, 12 Apr 2022 16:12:06 +0100
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAEZATCVOKJvvjsEhbKLjpFtbNvnGEmf51gXJbG3Y=FV_LQoPbA@mail.gmail.com>
References: <[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>
	<CAEZATCVOKJvvjsEhbKLjpFtbNvnGEmf51gXJbG3Y=FV_LQoPbA@mail.gmail.com>

Dean Rasheed <[email protected]> writes:

> On Mon, 11 Apr 2022 at 20:20, Tom Lane <[email protected]> wrote:
>>
>> >> How about we just say "uses a linear-feedback shift register algorithm"?
>
> I think it'd be sufficient to just say that it's a deterministic
> pseudorandom number generator. I don't see much value in documenting
> the internal algorithm used.
>
>> > Should we
>> > perhaps also add a warning that the same seed is not guaranteed to
>> > produce the same sequence across different (major?) versions?
>>
>> I wouldn't bother, on the grounds that then we'd need such disclaimers
>> in a whole lot of places.  Others might see it differently though.
>
> Agreed, though I think when the release notes are written, they ought
> to warn that the sequence will change with this release.

WFM on both points.

> Regards,
> Dean

- ilmari

view thread (3+ messages)  latest in thread

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: [email protected]
  Cc: [email protected], [email protected], [email protected], [email protected]
  Subject: Re: random() function documentation
  In-Reply-To: <[email protected]>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox