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From: David Rowley <dgrowleyml@gmail.com>
Date: Thu, 2 Apr 2026 14:12:55 +1300
Message-ID: 
 <CAApHDvqKO_TQKEjdX3UoHCRHn=pTu+1EWR6yrsEiCM8snHGEjg@mail.gmail.com>
Subject: Re: More speedups for tuple deformation
To: Alexander Lakhin <exclusion@gmail.com>
Cc: Tender Wang <tndrwang@gmail.com>, Andres Freund <andres@anarazel.de>,
	John Naylor <johncnaylorls@gmail.com>,
	PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>
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On Wed, 1 Apr 2026 at 16:35, David Rowley <dgrowleyml@gmail.com> wrote:
>
> On Wed, 1 Apr 2026 at 15:00, Alexander Lakhin <exclusion@gmail.com> wrote:
> > I've also found an assertion failure:
> > SELECT JSON_ARRAY(VALUES (('', '')));
> >
> > triggers:
> > TRAP: failed Assert("attlen > 0 || attlen == -1"), File: "heaptuple.c", Line: 598, PID: 2582495
> >
> > Could you have a look, please?
>
> Thanks. Looking...

I've pushed a fix for this. Thanks for the report.

David