Horton

Re: PG 13 release notes, first draft

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: Justin Pryzby <pryzby@telsasoft.com>
Cc: "Andrey M. Borodin" <x4mmm@yandex-team.ru>, pgsql-hackers@postgresql.org
Date: 2020-05-07T13:09:10Z
Lists: pgsql-hackers 
On Wed, May  6, 2020 at 07:31:14PM -0500, Justin Pryzby wrote:
> On Wed, May 06, 2020 at 07:35:34PM -0400, Bruce Momjian wrote:
> > On Wed, May  6, 2020 at 11:17:54AM +0500, Andrey M. Borodin wrote:
> > > I'm not sure, but probably it worth mentioning in "General performance" section that TOAST (and everything pglz-compressed) decompression should be significantly faster in v13.
> > > https://github.com/postgres/postgres/commit/c60e520f6e0e8db9618cad042df071a6752f3c06
> > 
> > OK, I read the thread mentioned in the commit message and I now see the
> > value of this change.  Attached is the release note diff.  Let me know
> > if it needs improvement.
> 
> Sorry I didn't see it earlier, but:
> 
> > -Improve retrieving of only the leading bytes of TOAST values (Binguo Bao)
> > +Improve speed of TOAST decompression and the retrievel of only the leading bytes of TOAST values (Binguo Bao, Andrey Borodin)
> 
> retrieval
> 
> I will include this with my running doc patch if you don't want to make a
> separate commit.

Fixed.

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

+ As you are, so once was I.  As I am, so you will be. +
+                      Ancient Roman grave inscription +

Commits

  1. Doc: improve release notes' info about FROM UNPACKAGED feature removal.

  2. Doc: fix misstatement in v13 release notes.

  3. Doc: some more v13 release note tweaking.

  4. Doc: update v13 release notes through today, do a copy-editing pass.

  5. Doc: fill in "major enhancements" list in v13 release notes.

  6. doc: PG 13 relnotes: fix typos

  7. doc: PG 13 relnotes, update TOAST item to mention decompression

  8. pgbench: document that the default data loading is client-side

  9. psql \d: Display table where trigger is defined, if inherited

  10. Skip WAL for new relfilenodes, under wal_level=minimal.

  11. Introduce vacuum errcontext to display additional information.

  12. Fix lquery's behavior for consecutive '*' items.

  13. Improve the internal implementation of ereport().

  14. Add object names to partition integrity violations.

  15. Allow page lock to conflict among parallel group members.

  16. Allow relation extension lock to conflict among parallel group members.

  17. Introduce "anycompatible" family of polymorphic types.

  18. Improve checking of child pages in contrib/amcheck.

  19. doc: Add information about new SQL part SQL/MDA

  20. Added relation name in error messages for constraint checks.

  21. Avoid full scan of GIN indexes when possible

  22. Use carriage returns for data insertion logs in pgbench on terminal

  23. Use memcpy instead of a byte loop in pglz_decompress

  24. Add backtrace support for error reporting

  25. Improve pruning of a default partition

  26. Improve psql's \d output for partitioned indexes.

  27. initdb: Change authentication defaults