Date: Wed, 18 Sep 2024 17:33:18 -0400
From: Bruce Momjian <bruce@momjian.us>
To: Jelte Fennema-Nio <postgres@jeltef.nl>
Cc: Alvaro Herrera <alvherre@alvh.no-ip.org>,
	Nathan Bossart <nathandbossart@gmail.com>,
	pgsql-hackers@postgresql.org
Subject: Re: First draft of PG 17 release notes
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On Tue, Sep 17, 2024 at 10:01:28AM +0200, Jelte Fennema-Nio wrote:
> On Wed, 11 Sept 2024 at 16:10, Bruce Momjian <bruce@momjian.us> wrote:
> > You are right that I do mention changes specifically designed for the
> > use of extensions, but there is no mention in the commit message of its
> > use for extensions.  In fact, I thought this was too low-level to be of
> > use for extensions.  However, if people feel it should be added, we have
> > enough time to add it.
> 
> Another new API that is useful for extension authors is the following
> one (I'm obviously biased since I'm the author, and I don't know if
> there's still time):
> 
> commit 14dd0f27d7cd56ffae9ecdbe324965073d01a9ff
> Author: Nathan Bossart <nathan@postgresql.org>
> Date:   Thu Jan 4 16:09:34 2024 -0600
> 
>     Add macros for looping through a List without a ListCell.
> 
>     Many foreach loops only use the ListCell pointer to retrieve the
>     content of the cell, like so:
> 
>         ListCell   *lc;
> 
>         foreach(lc, mylist)
>         {
>             int         myint = lfirst_int(lc);
> 
>             ...
>         }
> 
>     This commit adds a few convenience macros that automatically
>     declare the loop variable and retrieve the current cell's contents.
>     This allows us to rewrite the previous loop like this:
> 
>         foreach_int(myint, mylist)
>         {
>             ...
>         }

Can someone else comment on the idea of adding this release note item? 
I don't feel confident in my ability to evaluate this.  I obviously did
not see it as significant the first time.

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

  When a patient asks the doctor, "Am I going to die?", he means 
  "Am I going to die soon?"