Horton

Re: PG 18 release notes draft committed

Bruce Momjian <bruce@momjian.us>

View thread
From: Bruce Momjian <bruce@momjian.us>
To: Jelte Fennema-Nio <postgres@jeltef.nl>
Cc: PostgreSQL-development <pgsql-hackers@lists.postgresql.org>
Date: 2025-05-05T01:42:32Z
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. doc PG 18 relnotes: add AFTER trigger user change item

  2. doc PG 18 relnotes: modify async I/O item for other improvements

  3. doc PG 18 relnotes: split apart log_connections item

  4. doc PG 18 relnotes: move ANALYZE item,split ANALYZE/EXPLAIN item

  5. doc PG 18 relnotes: clarify multiplication item

  6. doc PG 18 relnotes: add removal details to MD5 item

  7. doc PG 18 relnotes: fix markup

  8. doc PG 18 relnotes: clarify btree skip-scan item

  9. doc PG 18 relnotes: update to current

  10. doc PG 18 relnotes: adjust CREATE SUBSCRIPTION attribution

  11. doc PG 18 relnotes: clarify btree skip scan item

  12. doc PG 18 relnotes: mv. hash joins and GROUP BY item to General

  13. Add support for runtime arguments in injection points

  14. doc PG 18 relnotes: fix missing parens for crc32c()

  15. PG 18 relnotes: adjust RETURNING new/old item

  16. doc PG 18 relnotes: adjust pg_log_backend_memory_contexts()

  17. doc PG 18 relnotes: add pg_log_backend_memory_contexts() mention

  18. doc PG 18 relnotes: adjust pgbench per-script reporting item

  19. doc PG 18 relnotes: mention GROUP SET fixes

  20. doc PG 18 relnotes: adjust partition planning item

  21. doc PG 18 relnotes: small adjustments regarding options

  22. doc PG 18 relnotes: move partition locking item to General Perf

  23. doc PG 18 relnotes: adjust partition items

  24. doc PG 18 relnotes: reword OAuth item

  25. doc PG 18 relnotes: add mention of pg_stat_reset_backend_stats()

  26. doc PG 18 relnotes: adjust hash item

  27. doc PG 18 relnotes: split partition optimizer item into two

  28. doc PG 18 relnotes: adjust COPY and REJECT_LIMIT items

  29. doc PG 18 relnotes: move and clarify constraint items

  30. doc PG 18 relnotes: add commit for cancel key and protocol neg.

  31. doc PG 18 relnotes: fix libpq wording

  32. doc PG 18 relnotes: add GROUP BY column elimination item

  33. doc PG 18 relnotes: move protocol version item to "server"

  34. doc PG 18 relnotes: adjust libpq trace & potocol version items

  35. doc PG 18 relnotes: reword and reorder items

  36. doc: Fix memory context level in pg_log_backend_memory_contexts() example.

  37. Make levels 1-based in pg_log_backend_memory_contexts()

  38. Introduce file_copy_method setting.

  39. libpq: Handle NegotiateProtocolVersion message differently

  40. Add timingsafe_bcmp(), for constant-time memory comparison

  41. Optimization for lower(), upper(), casefold() functions.

  42. Fix ALTER SUBSCRIPTION ... SET PUBLICATION ... command.

  43. Add connection establishment duration logging

  44. Modularize log_connections output

  45. Ensure that AFTER triggers run as the instigating user.

  46. Detect redundant GROUP BY columns using UNIQUE indexes

  47. Move cancel key generation to after forking the backend

On Sun, May  4, 2025 at 11:49:47AM +0200, Jelte Fennema-Nio wrote:
> On Fri, 2 May 2025 at 04:45, Bruce Momjian <bruce@momjian.us> wrote:
> > I have committd the first draft of the PG 18 release notes.
> 
> Some suggestions for additional commits to list for the items in the changelog:
> 1. I think 5070349102af12832c8528651c8ed18b16346323 should be listed
> as a commit for "Add libpq connection parameters and environment
> variables...". This commit contains a major part of the change that
> allows supporting multiple protocol versions client side.

Added.

> 2. I think 9d9b9d46f3c509c722ebbf2a1e7dc6296a6c711d &
> 09be39112654c3f158098fdb5f820143c0330763 should be listed as a commits
> for "Make cancel request keys 256 bits". These commits contain crucial
> parts of that change. This would also put me in there as one of the
> co-authors for this item.

I added the first commit but the second one is:

	commit 09be3911265
	Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
	Date:   Wed Apr 2 15:32:40 2025 +0300
	
	    Add timingsafe_bcmp(), for constant-time memory comparison
	
	    timingsafe_bcmp() should be used instead of memcmp() or a naive
	    for-loop, when comparing passwords or secret tokens, to avoid leaking
	    information about the secret token by timing. This commit just
	    introduces the function but does not change any existing code to use
	    it yet.
	
	    Co-authored-by: Jelte Fennema-Nio <github-tech@jeltef.nl>
	    Discussion: https://www.postgresql.org/message-id/7b86da3b-9356-4e50-aa1b-56570825e234@iki.fi

which is either the wrong commit hash or too far away from the item
description to be added.

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

  Do not let urgent matters crowd out time for investment in the future.