Horton

Re: First draft of PG 17 release notes

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: Aleksander Alekseev <aleksander@timescale.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2024-05-09T14:20:23Z
Lists: pgsql-hackers

Commits

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

  1. Revert support for ALTER TABLE ... MERGE/SPLIT PARTITION(S) commands

  2. When creating materialized views, use REFRESH to load data.

  3. Revert temporal primary keys and foreign keys

  4. Avoid needless large memcpys in libpq socket writing

  5. Enhance nbtree ScalarArrayOp execution.

  6. Introduce a non-recursive JSON parser

  7. Combine freezing and pruning steps in VACUUM

  8. Allow SIGINT to cancel psql database reconnections.

  9. Provide API for streaming relation data.

  10. Add hash support functions and hash opclass for contrib/ltree.

  11. Pull up ANY-SUBLINK with the necessary lateral support.

  12. Read WAL directly from WAL buffers.

  13. Introduce the dynamic shared memory registry.

  14. Add macros for looping through a List without a ListCell.

  15. Support +/- infinity in the interval data type.

  16. Extend ALTER OPERATOR to allow setting more optimization attributes.

  17. Consider cheap startup paths in add_paths_to_append_rel

On Thu, May  9, 2024 at 12:18:44PM +0300, Aleksander Alekseev wrote:
> Hi,
> 
> > I have committed the first draft of the PG 17 release notes;  you can
> > see the results here:
> >
> >         https://momjian.us/pgsql_docs/release-17.html
> >
> > It will be improved until the final release.  The item count is 188,
> > which is similar to recent releases:
> 
> Thanks for working on this.
> 
> I believe the part of the 64-bit XIDs patchset that was delivered in
> PG17 is worth highlighting in "E.1.3.10. Source Code" section:
> 
> 4ed8f0913bfd
> 2cdf131c46e6
> 5a1dfde8334b
> a60b8a58f435
> 
> All this can probably be summarized as one bullet "Index SLRUs by
> 64-bit integers rather than by 32-bit ones" where the authors are:
> Maxim Orlov, Aleksander Alekseev, Alexander Korotkov, Teodor Sigaev,
> Nikita Glukhov, Pavel Borisov, Yura Sokolov.

Wow, I try to only list source code items that have some user-facing
impact, and I don't think these do.  I do realize how important they are
though.  This gets into the balance of mentioning items _users_ need to
know about, vs. important improvements that _we_ know about.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Only you can decide what is important to you.