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help / color / mirror / Atom feedFrom: Melanie Plageman <[email protected]>
To: Nathan Bossart <[email protected]>
Cc: Richard Guo <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Amit Langote <[email protected]>
Cc: Vik Fearing <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: Álvaro Herrera <[email protected]>
Cc: Heikki Linnakangas <[email protected]>
Subject: Re: BUG #19418: SQL/JSON JSON_VALUE() does not conform to ISO/IEC 9075-2:2023(E) 6.34 <JSON value constructor>
Date: Thu, 30 Apr 2026 18:04:54 -0400
Message-ID: <CAAKRu_YU542L_+_H1VFSTtLnj4Yo=GcXykyiw_6GZZiOEt5mVA@mail.gmail.com> (raw)
In-Reply-To: <aevLYeoSSgiwEiO-@nathan>
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<aevLYeoSSgiwEiO-@nathan>
On Fri, Apr 24, 2026 at 3:58 PM Nathan Bossart <[email protected]> wrote:
>
> On Thu, Apr 23, 2026 at 09:55:10AM +0900, Richard Guo wrote:
> >> Hi RMT,
> >>
> >> I'd like to commit a fix for JSON_ARRAY(subquery) behavior that
> >> involves a user-visible incompatibility, and would appreciate your
> >> go/no-go since we're past feature freeze.
> >>
> >> Summary:
> >>
> >> - JSON_ARRAY(SELECT ...) currently returns NULL over an empty result
> >> set, but the SQL/JSON standard requires it to return '[]'. Fixing
> >> this changes user-visible output.
> >>
> >> - The same patch also fixes a deparsing issue: views defined with
> >> JSON_ARRAY(SELECT ...) are dumped back as the internal JSON_ARRAYAGG
> >> rewrite instead of the original syntax.
>
> I am fine with committing this for v19, assuming there is consensus on the
> patch content.
>
> Heikki/Melanie: Any objections?
Nope. I'm +1 on committing this now. 19 is unreleased -- I see no
reason to wait a year.
- Melanie
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Subject: Re: BUG #19418: SQL/JSON JSON_VALUE() does not conform to ISO/IEC 9075-2:2023(E) 6.34 <JSON value constructor>
In-Reply-To: <CAAKRu_YU542L_+_H1VFSTtLnj4Yo=GcXykyiw_6GZZiOEt5mVA@mail.gmail.com>
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