Horton

Re: Postgres 11 release notes

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Heikki Linnakangas <hlinnaka@iki.fi>
Cc: Bruce Momjian <bruce@momjian.us>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2018-05-16T11:59:23Z
Lists: pgsql-hackers 
On Wed, May 16, 2018 at 01:09:07PM +0300, Heikki Linnakangas wrote:
> I have to agree with Bruce, that it's pretty useless to implement channel
> binding, if there is no way to require it in libpq. IMHO that must be
> fixed.

Wouldn't we want to also do something for the case where a client is
willing to use SCRAM but that the server forces back MD5?  In which
case, one possibility is a connection parameter like the following,
named say authmethod:
- An empty value is equivalent to the current behavior, and is the
default.
- 'scram' means that client is willing to use SCRAM, which would cause a
failure if server attempts to enforce MD5.
- 'scram-plus' means that client enforces SCRAM and channel binding.

Or we could just have a channel_binding_mode, which has a "require"
value like sslmode, and "prefer" mode, which is the default and the
current behavior...  Still what to do with MD5 requests in this case?
--
Michael

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.