Horton

Re: Postgres 11 release notes

Jonathan S. Katz <jkatz@postgresql.org>

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From: "Jonathan S. Katz" <jkatz@postgresql.org>
To: "David G. Johnston" <david.g.johnston@gmail.com>
Cc: Bruce Momjian <bruce@momjian.us>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2018-06-09T20:58:29Z
Lists: pgsql-hackers 
> On Jun 9, 2018, at 4:35 PM, David G. Johnston <david.g.johnston@gmail.com> wrote:
> 
> On Fri, May 11, 2018 at 8:08 AM, Bruce Momjian <bruce@momjian.us <mailto:bruce@momjian.us>> wrote:
> I have committed the first draft of the Postgres 11 release notes.  I
> will add more markup soon.  You can view the most current version here:
> 
>         http://momjian.us/pgsql_docs/release-11.html <http://momjian.us/pgsql_docs/release-11.html>
> 
> ​Some thoughts:​
> 
> ​As a major ​item:
> """"
> JIT compilation of some SQL code, including support for fast evaluation of expressions
> """"
> 
> leaves me wondering what the general benefit is to the user.  Also, spelling out "Just-In-Time (JIT)" here seems warranted.

+1 for spelling it out.

Looking through past release notes[1][2], we’ve typically left the context for
the features press releases[3].

Now, as the beta press release (feature-explanation oriented) typically differs from
the major version press release (use-case/context oriented), perhaps we could
incorporate some of the elements from the beta press release into the
“Major Features” section. It would be a departure from the release notes of recent
memory, but perhaps it would be more helpful.

Thoughts?

Jonathan

[1] https://www.postgresql.org/docs/11/static/release-10.html <https://www.postgresql.org/docs/11/static/release-10.html>
[2] https://www.postgresql.org/docs/11/static/release-9-6.html <https://www.postgresql.org/docs/11/static/release-9-6.html>
[3] https://www.postgresql.org/about/news/1855/ <https://www.postgresql.org/about/news/1855/>

Commits

  1. doc: update PG 11 release notes

  2. Fix misspelled pg_trgm contrib name in PostgreSQL 11 release notes

  3. Doc: clarify release note text about v11's new window function features.

  4. Improve wording of release notes item

  5. Fix typos in release notes

  6. Doc: preliminary list of PG11 major features.

  7. Make numeric power() handle NaNs according to the modern POSIX spec.

  8. Various improvements of skipping index scan during vacuum technics

  9. Revert back-branch changes in power()'s behavior for NaN inputs.

  10. Avoid wrong results for power() with NaN input on more platforms.

  11. Avoid wrong results for power() with NaN input on some platforms.

  12. Skip full index scan during cleanup of B-tree indexes when possible

  13. Rewrite the code that applies scan/join targets to paths.

  14. Postpone generate_gather_paths for topmost scan/join rel.

  15. Add casts from jsonb

  16. Make plpgsql use its DTYPE_REC code paths for composite-type variables.

  17. Don't allow VACUUM VERBOSE ANALYZE VERBOSE.

  18. Pass InitPlan values to workers via Gather (Merge).

  19. Account for the effect of lossy pages when costing bitmap scans.

  20. Allow no-op GiST support functions to be omitted.

  21. Rearm statement_timeout after each executed query.

  22. Push limit through subqueries to underlying sort, where possible.