Horton

Re: PG 16 draft release notes ready

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: David Rowley <dgrowleyml@gmail.com>
Cc: "Jonathan S. Katz" <jkatz@postgresql.org>, PostgreSQL-development <pgsql-hackers@postgresql.org>, Thomas Munro <thomas.munro@gmail.com>, Melanie Plageman <melanieplageman@gmail.com>
Date: 2023-05-29T18:46:22Z
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 Wed, May 24, 2023 at 04:13:14PM +1200, David Rowley wrote:
> On Wed, 24 May 2023 at 15:54, Bruce Momjian <bruce@momjian.us> wrote:
> > First, I need to mention parallel _hash_ join.  Second, I think this
> > item is saying that the _inner_ side of a parallel hash join can be an
> > OUTER or FULL join.  How about?
> >
> >         Allow hash joins to be parallelized where the inner side is
> >         processed as an OUTER or FULL join (Melanie Plageman, Thomas Munro)
> >
> > In this case, the inner side is the hashed side.
> 
> I think Jonathan's text is safe to swap OUTER to RIGHT as it mentions
> "execution". For the release notes, maybe the mention of it can be
> moved away from "E.1.3.1.1. Optimizer" and put under "E.1.3.1.2.
> General Performance" and ensure we mention that we're talking about
> the executor?
> 
> I'm thinking it might be confusing if we claim that this is something
> that we switched on in the planner. It was a limitation with the
> executor which the planner was just onboard with not producing plans
> for.

Well, I try to keep plan changes in the optimizer section because that
is where the decisions are made, and how people think of plans since
EXPLAIN makes them visible.  I agree it is an executor change but I
think that distinction will be more confusing than helpful.

Frankly, almost all the optimizer items are really executor changes. 
Maybe the "Optimizer" title needs to be changed, but I do think it is
good to group plan changes together.

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

  Only you can decide what is important to you.