Re: PG 14 release notes, first draft

On Mon, May 10, 2021 at 02:42:08PM -0400, John Naylor wrote:
> Hi Bruce,
>
> Thanks for doing this work again!
>
> > Add date_bin function (John Naylor)
> >
> > WHAT DOES THIS DO?
>
> Hard to describe in a one-liner, but it lines up timestamps into regular
> intervals as specified by the user. It is more clear after seeing examples:
>
> https://www.postgresql.org/docs/devel/functions-datetime.html#
> FUNCTIONS-DATETIME-BIN

OK, I just copied the doc sentence into the release notes.

> > Dramatically improve Unicode normalization (John Naylor)
> >
> > WHAT OPERATIONS USE THIS?
>
> PG13 added the normalize() function to normalize Unicode sequences, as well as
> the IS NORMALIZED syntax to test for that. The commits* here do not change
> behavior and only improve performance. As such, this really belongs in the
> performance section. 
>
> *There is one additional commit that belongs to this entry:
>
> Author: Michael Paquier <michael(at)paquier(dot)xyz>
> 2020-10-11 [80f8eb79e] Use perfect hash for NFC and NFKC Unicode Normalization
> quick check

OK, updated text:

<listitem>
<!--
Author: Michael Paquier <michael(at)paquier(dot)xyz>
2020-10-11 [80f8eb79e] Use perfect hash for NFC and NFKC Unicode Normalization
Author: Michael Paquier <michael(at)paquier(dot)xyz>
2020-10-23 [783f0cc64] Improve performance of Unicode {de,re}composition in the
-->

<para>
Dramatically improve Unicode normalization (John Naylor)
</para>

<para>
This speeds normalize() and IS NORMALIZED.
</para>
</listitem>

--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com

If only the physical world exists, free will is an illusion.