Horton

Re: PG 16 draft release notes ready

John Naylor <john.naylor@enterprisedb.com>

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From: John Naylor <john.naylor@enterprisedb.com>
To: Bruce Momjian <bruce@momjian.us>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2023-05-24T05:23:02Z
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 11:19 AM Bruce Momjian <bruce@momjian.us> wrote:
>
> Second, you might be correct that the section is wrong.  I thought of
> CPU instructions as something tied to the compiler, so part of the build
> process or source code, but the point we should be make is that we have
> these acceleration, not how it is implemented.  We can move the entire
> group to the "General Performance" section, or we can split it out:

Splitting out like that seems like a good idea to me.

> Keep in source code:
>
>         Add support for SSE2 (Streaming SIMD Extensions 2) vector
operations on
>         x86-64 architectures (John Naylor)
>
>         Add support for Advanced SIMD (Single Instruction Multiple Data)
(NEON)
>         instructions on ARM architectures (Nathan Bossart)
>
> move to General Performance:
>
>         Allow xid/subxid searches to use vector operations (Nathan
Bossart)
>
>         Allow ASCII string detection to use vector operations (John
Naylor)

(The ASCII part is most relevant for COPY FROM, just in case that matters.)

> and add these to data types:
>
>         Allow JSON string parsing to use vector operations (John Naylor)
>
>         Allow array searches to use vector operations (John Naylor)

The last one refers to new internal functions, so it could stay in source
code. (Either way, we don't want to imply that arrays of SQL types are
accelerated this way, it's so far only for internal arrays.)

--
John Naylor
EDB: http://www.enterprisedb.com