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From: Tom Lane <[email protected]>
To: Dagfinn Ilmari Mannsåker <[email protected]>
Cc: [email protected]
Subject: Re: random() function documentation
Date: Mon, 11 Apr 2022 14:45:19 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

=?utf-8?Q?Dagfinn_Ilmari_Manns=C3=A5ker?= <[email protected]> writes:
> I just noticed that the since the random() rewrite¹, the documentation's
> claim² that it "uses a simple linear congruential algorithm" is no
> longer accurate (xoroshiro128** is an xorshift variant, which is a
> linear-feedback shift register algorithm).

> I don't have a suggestion for the exact wording, since I don't know
> whether xoroshiro128** qualifies as "simple", or to what level of
> specificity we want to document the algorithm.

How about we just say "uses a linear-feedback shift register algorithm"?
"Simple" is in the eye of the beholder anyway.

			regards, tom lane

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