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From: John Naylor <[email protected]>
To: [email protected]
To: [email protected]
Subject: Re: BUG #19467: Inconsistency in MOD() result involving POWER() and floating-point precision in PostgreSQL
Date: Mon, 27 Apr 2026 19:20:21 +0700
Message-ID: <CANWCAZaQfqAaATv4=tkRvV4mNW+6-XGcVTAfZw7qNcMBAuEN2Q@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

On Mon, Apr 27, 2026 at 6:33 PM PG Bug reporting form
<[email protected]> wrote:
> Mathematically, this corresponds to the fractional part of 3^70.31,  which
> should be deterministic for a given evaluation strategy.
>
> However, different systems produce significantly different results:

These two statements don't contradict eachother.

Trying the expression on WolframAlpha shows 0.41 is close to the
expected value, so I don't see a bug here.

--
John Naylor
Amazon Web Services

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