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From: David G. Johnston <[email protected]>
To: [email protected] <[email protected]>
To: [email protected] <[email protected]>
Subject: Re: BUG #19454: PL/pgSQL mishandling jsonb attribute reference
Date: Mon, 13 Apr 2026 07:10:29 -0700
Message-ID: <CAKFQuwak==1Pt12Bo571YCgKJ5wyV6RakSQeYdazLo4q+JDMkA@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

On Sunday, April 12, 2026, PG Bug reporting form <[email protected]>
wrote:

> The following bug has been logged on the website:
>
> Bug reference:      19454
> Logged by:          CN Liou
> Email address:      [email protected]
> PostgreSQL version: 18.3
> Operating system:   Linux Debian Bookworm
> Description:
>
>         v_payload := v_payload || tj->'delta'; -- The problematic line
>         --v_payload := (SELECT v_payload || (tj->'delta')); --This avoids
> the issue.
>

I’m not following.  The problematic line above is indeed annoying but it’s
not a bug.  Operator precedence is behaving as documented.  The second line
(wrapping tj->’delta’ with parentheses) is simply the necessary way to
write many expressions involving the “->”-like json[b] operators.

David J.

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