Horton

Re: First draft of PG 17 release notes

Bruce Momjian <bruce@momjian.us>

View thread
From: Bruce Momjian <bruce@momjian.us>
To: jian he <jian.universality@gmail.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2024-05-09T15:41:57Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Revert support for ALTER TABLE ... MERGE/SPLIT PARTITION(S) commands

  2. When creating materialized views, use REFRESH to load data.

  3. Revert temporal primary keys and foreign keys

  4. Avoid needless large memcpys in libpq socket writing

  5. Enhance nbtree ScalarArrayOp execution.

  6. Introduce a non-recursive JSON parser

  7. Combine freezing and pruning steps in VACUUM

  8. Allow SIGINT to cancel psql database reconnections.

  9. Provide API for streaming relation data.

  10. Add hash support functions and hash opclass for contrib/ltree.

  11. Pull up ANY-SUBLINK with the necessary lateral support.

  12. Read WAL directly from WAL buffers.

  13. Introduce the dynamic shared memory registry.

  14. Add macros for looping through a List without a ListCell.

  15. Support +/- infinity in the interval data type.

  16. Extend ALTER OPERATOR to allow setting more optimization attributes.

  17. Consider cheap startup paths in add_paths_to_append_rel

On Thu, May  9, 2024 at 11:26:44PM +0800, jian he wrote:
> On Thu, May 9, 2024 at 11:12 PM Bruce Momjian <bruce@momjian.us> wrote:
> >
> > On Thu, May  9, 2024 at 07:49:55PM +0800, jian he wrote:
> > > On Thu, May 9, 2024 at 6:53 PM jian he <jian.universality@gmail.com> wrote:
> > > >
> > > > On Thu, May 9, 2024 at 12:04 PM Bruce Momjian <bruce@momjian.us> wrote:
> > > > > I have committed the first draft of the PG 17 release notes;  you can
> > > > > see the results here:
> > > > >
> > > > >         https://momjian.us/pgsql_docs/release-17.html
> > >
> 
> E.1.3.1.5. Privileges
> Add per-table GRANT permission MAINTAIN to control maintenance
> operations (Nathan Bossart)
> 
> The operations are VACUUM, ANALYZE, REINDEX, REFRESH MATERIALIZE VIEW,
> CLUSTER, and LOCK TABLE.
> 
> Add user-grantable role pg_maintain to control maintenance operations
> (Nathan Bossart)
> 
> The operations are VACUUM, ANALYZE, REINDEX, REFRESH MATERIALIZE VIEW,
> CLUSTER, and LOCK TABLE.
> 
> Allow roles with pg_monitor privileges to execute pg_current_logfile()
> (Pavlo Golub, Nathan Bossart)
> ---------------
> should be "REFRESH MATERIALIZED VIEW"?

Yes, fixed.

> also
> "Allow roles with pg_monitor privileges to execute
> pg_current_logfile() (Pavlo Golub, Nathan Bossart)"
> "pg_monitor" is a predefined role, so technically, "with pg_monitor
> privileges" is not correct?

Good point, new text:

	Allow roles with pg_monitor membership to execute pg_current_logfile() (Pavlo Golub, Nathan Bossart)

> --------------------------------------------------------------------------
> Add function XMLText() to convert text to a single XML text node (Jim Jones)
> 
> XMLText()
> should be
> xmltext()

Right, fixed.

> --------------------------------------------------------------------------
> Add function to_regtypemod() to return the typemod of a string (David
> Wheeler, Erik Wienhold)
> I think this description does not mean the same thing as the doc[1]

Yes, I see your point.  I changed the text to:

	Add function to_regtypemod() to return the type modifier of a
	type specification (David Wheeler, Erik Wienhold)


> [1] https://www.postgresql.org/docs/devel/functions-info.html#FUNCTIONS-INFO-CATALOG
> --------------------------------------------------------------------------
> 
> Allow GROUP BY columns to be internally ordered to match ORDER BY
> (Andrei Lepikhov, Teodor Sigaev)
> This can be disabled using server variable enable_group_by_reordering.
> 
> Probably
> `This can be disabled by setting the server variable
> enable_group_by_reordering to false`.

Uh, I usually don't go into that detail.  There will be a link to the
variable in about a month so users can look up its behavior.

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

  Only you can decide what is important to you.