Horton

Re: Postgres 11 release notes

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: Andres Freund <andres@anarazel.de>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2018-05-11T19:14:24Z
Lists: pgsql-hackers 
On Fri, May 11, 2018 at 11:59:12AM -0700, Andres Freund wrote:
> Hi,
> 
> Quick notes:
> >       <para>
> >        Add Just-In-Time (<acronym>JIT</acronym>) compilation of plans
> >        run the by the executor
> >(Andres Freund)
> >       </para>
> >      </listitem>
> 
> It's currently not yet compilation of entire plans, but only parts. I
> think that's a relevant distinction because I'd like to add that as a
> feature to v12 ;). How about just adding 'parts of' or such?  I'd also
> rephrase the plan and 'run by the executor a bit'. How about:
> 
>   Add Just-In-Time (<acronym>JIT</acronym>) compilation of parts of
>   queries, to accelerate their execution.

OK, new text:

        Add Just-In-Time (<acronym>JIT</acronym>) compilation of some
        parts of query plans to improve execution speed (Andres Freund)

> >      <listitem>
> ><!--
> >2018-03-20 [5b2526c83] Add configure infrastructure (- -with-llvm) to enable LLV
> >-->
> >
> >       <para>
> >        Add configure flag <option>--with-llvm</option> to test for
> >        <acronym>LLVM</acronym> support (Andres Freund)
> >       </para>
> >      </listitem>
> >
> >      <listitem>
> ><!--
> >2018-03-20 [6869b4f25] Add C++ support to configure.
> >-->
> >
> >       <para>
> >        Have configure check for the availability of a C++ compiler
> >        (Andres Freund)
> >       </para>
> >      </listitem>
> >
> >      <listitem>
> 
> I wonder if we shouldn't omit those, considering them part of the JIT
> entry?  Not quite sure what our policy there is.

OK, removed.

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

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

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.