Horton

Re: First draft of PG 17 release notes

Matthias van de Meent <boekewurm+postgres@gmail.com>

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From: Matthias van de Meent <boekewurm+postgres@gmail.com>
To: Bruce Momjian <bruce@momjian.us>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2024-07-05T17:51:38Z
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

Hi,

I noticed that PG17's release note for commit cafe10565 is "Allow psql
connections to be canceled with control-C (Tristan Partin)", but this
summary seems wrong to me.

We already had ^C connection (query) cancellation for quite some time
before this patch. What's new with that patch, is that we now also can
cancel connection attempts with ^C while we're still connecting (i.e.,
we haven't yet authenticated and are trying to move the connection
state forward).
I think a better wording would be "Allow psql connection attempts to
be canceled with control-C (Tristan Partin)", or "Allow psql
connections to be canceled with control-C while psql is still
connecting (Tristan Partin)".

Kind regards,

Matthias van de Meent
Neon (https://neon.tech)