Horton

Re: PG 16 draft release notes ready

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: Michael Paquier <michael@paquier.xyz>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2023-08-09T21:45:27Z
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 MAINTAIN privilege and pg_maintain predefined role.

  2. doc: PG 16 relnotes, remove "Have initdb use ICU by default"

  3. initdb: change default --locale-provider back to libc.

  4. doc: PG 16 relnotes, add author

  5. doc: PG 16 relnotes, move memory item and reword OUTER item

  6. doc: PG 16 relnotes, add memory overhead reduction item

  7. doc: PG 16 relnotes, adjust subscription origin mention

  8. doc: PG 16 relnotes, adjust auto_explain logging item

  9. doc: PG 16 relnotes: adjust outer/full hash join parallelization

  10. doc: PG 16 relnotes, fix duplicate author and commit

  11. doc: PG 16 relnotes, fix "locale" typo and windows locale text

  12. doc: PG 16 relnotes, add author from previous merge

  13. doc: PG 16 relnotes, wording adjustments

  14. doc: PG 16 relnotes, merge and move vector items

  15. doc: PG 16 relnotes, update xid/subxid searches item

  16. doc: PG 16 relnotes, SIMD improvements

  17. doc: PG 16 relnotes, add major features list

  18. doc: PG 16 relnotes, misc merged items and bootstrap detail

  19. doc: PG 16 relnotes, misc. updates

  20. doc: PG 16 relnotes, add commits

  21. Allow logical decoding on standbys

  22. Fix ts_headline() edge cases for empty query and empty search text.

  23. Add a hook for modifying the ldapbind password

  24. Rework design of functions in pg_walinspect

  25. initdb: derive encoding from locale for ICU; similar to libc.

  26. Doc: add XML ID attributes to <sectN> and <varlistentry> tags.

  27. Simplify the implementations of the to_reg* functions.

  28. Rename pg_dissect_walfile_name() to pg_split_walfile_name()

  29. Make materialized views participate in predicate locking

  30. Improve performance of and reduce overheads of memory management

  31. Allow grant-level control of role inheritance behavior.

On Sun, Jul 23, 2023 at 08:19:55PM +0900, Michael Paquier wrote:
> On Tue, Jul 04, 2023 at 05:32:07PM -0400, Bruce Momjian wrote:
> > On Tue, Jul  4, 2023 at 03:31:05PM +0900, Michael Paquier wrote:
> >> On Thu, May 18, 2023 at 04:49:47PM -0400, Bruce Momjian wrote:
> >> Sawada-san has mentioned on twitter that fdd8937 is not mentioned in
> >> the release notes, and it seems to me that he is right.  This is
> >> described as a bug in the commit log, but it did not get backpatched
> >> because of the lack of complaints.  Also, because we've removed
> >> support for anything older than Windows 10 in PG16, this change very
> >> easy to do.
> > 
> > I did review this and wasn't sure exactly what I would describe.  It is
> > saying huge pages will now work on some versions of Windows 10 but
> > didn't before?
> 
> Windows 10 has always used a forced automated rolling upgrade process,
> so there are not many versions older than 1703, I suppose.  I don't
> know if large pages were working before 1703 where
> FILE_MAP_LARGE_PAGES has been introduced, and I have never been able
> to test that.  Honestly, I don't think that we need to be picky about
> the version mentioned, as per the forced upgrade process done by
> Microsoft.
> 
> So, my preference would be to keep it simple and add an item like "Fix
> huge pages on Windows 10 and newer versions", with as potential
> subnote "The backend sets a flag named FILE_MAP_LARGE_PAGES to allow
> huge pages", though this is not really mandatory to go down to this
> level of internals, either.

That is very helpful.  I added this to the release notes Server
Configuration section:

	<!--
	Author: Michael Paquier <michael@paquier.xyz>
	2022-09-17 [fdd8937c0] Fix huge_pages on Windows
	-->
	
	<listitem>
	<para>
	Allow huge pages to work on newer versions of Windows 10 (Thomas Munro)
	</para>
	
	<para>
	This adds the special handling required to enable huge pages on newer
	versions of Windows 10.
	</para>
	</listitem>

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

  Only you can decide what is important to you.