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Re: SQL:2011 Application Time Update & Delete

Paul A Jungwirth <pj@illuminatedcomputing.com>

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From: Paul A Jungwirth <pj@illuminatedcomputing.com>
To: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Robert Haas <robertmhaas@gmail.com>, Peter Eisentraut <peter@eisentraut.org>
Date: 2025-10-24T17:08:26Z
Lists: pgsql-hackers

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On Sun, Oct 12, 2025 at 11:43 PM Paul A Jungwirth
<pj@illuminatedcomputing.com> wrote:
> > > Here is another update, now with working PERIOD DDL. I also fixed some
> > > new post-rebase problems causing CI to fail.
> >
> > More rebase & CI fixes attached.
> >
> > Rebased to 03d40e4b52 now.
>
> It looks like an #include I needed went away and my patches stopped
> compiling. Here is a new series.

Another update attached. The last CI run failed, but it seems to be a
problem with the cfbot. It had several green runs before that, and
everything still passes here. The error is:

Failed to start: INVALID_ARGUMENT: Operation with name
"operation-1761179023113-641c8720efc82-b98ffe61-7c88ff25" failed with
status = HttpJsonStatusCode{statusCode=PERMISSION_DENIED} and message
= FORBIDDEN

These new patches have some cleanup to the docs: whitespace, a bit of
clarification between application-time vs system-period PERIODs, and
removing the "periods are not supported" line in the final patch that
adds PERIODs.

The first 3 doc patches all apply to features that we released in v18,
so it would be nice to get those reviewed/merged soon if possible.

Patches 4-6 are another group, adding UPDATE/DELETE FOR PORTION OF.
That is the next step in SQL:2011 support. I think it is hard to use
temporal primary & foreign keys without temporal DML.

After that the patches are nice-to-have (especially foreign key
CASCADE), but less important IMO.

Also I apologize that those last attachments were out of order.
Hopefully it was user error so I can do something about it: I recently
switched from Thunderbird back to the Gmail web client. As I write
this email, Gmail is telling me the v57 files are in the right order,
so hopefully they stay that way after I send it.

Rebased to c0677d8b2e.

Yours,

-- 
Paul              ~{:-)
pj@illuminatedcomputing.com

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Make ExecForPortionOfLeftovers() obey SRF protocol.

  2. Add isolation tests for UPDATE/DELETE FOR PORTION OF

  3. Add UPDATE/DELETE FOR PORTION OF

  4. Record range constructor functions in pg_range

  5. Add range_minus_multi and multirange_minus_multi functions

  6. doc: Add section for temporal tables

  7. Add assertion check for WAL receiver state during stream-archive transition