Horton

Re: PG 13 release notes, first draft

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2020-05-05T14:01:12Z
Lists: pgsql-hackers 
On Tue, May  5, 2020 at 04:14:42PM +1200, Thomas Munro wrote:
> On Tue, May 5, 2020 at 3:16 PM Bruce Momjian <bruce@momjian.us> wrote:
> > I have committed the first draft of the PG 13 release notes.  You can
> > see them here:
> >
> >         https://momjian.us/pgsql_docs/release-13.html
> >
> > It still needs markup, word wrap, and indenting.  The community doc
> > build should happen in a few hours.
> 
> Hi Bruce,
> 
> Thanks!  Some feedback:
> 
> +2020-04-08 [3985b600f] Support PrefetchBuffer() in recovery.
> +-->
> +
> +<para>
> +Speedup recovery by prefetching pages (Thomas Munro)
> 
> Unfortunately that commit was just an infrastructural change to allow
> the PrefetchBuffer() function to work in recovery, but the main
> "prefetching during recovery" patch to actually make use of it to go
> faster didn't make it.  So this item shouldn't be in the release
> notes.

Agreed, removed.

> +2020-04-07 [4c04be9b0] Introduce xid8-based functions to replace txid_XXX.
> +-->
> +
> +<para>
> +Update all transaction id functions to support xid8 (Thomas Munro)
> +</para>
> +
> +<para>
> +They use the same names as the xid data type versions.
> +</para>
> 
> The names are actually different.  How about: "New xid8-based
> functions replace the txid family of functions, but the older names
> are still supported for backward compatibility."

Agreed.

> +2019-10-16 [d5ac14f9c] Use libc version as a collation version on glibc systems
> +-->
> +
> +<para>
> +Use the glibc version as the collation version (Thomas Munro)
> +</para>
> +
> +<para>
> +If the glibc version changes, a warning will be issued when a
> mismatching collation is used.
> +</para>
> 
> I would add a qualifier "in some cases", since it doesn't work for
> default collations yet.  (That'll now have to wait for 14).

Done.

-- 
  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