Re: PG 14 release notes, first draft

On 2021-May-12, Bruce Momjian wrote:

> OK, I added it into the existing entry:
> 
>     <listitem>
>     <!--
>     Author: Alexander Korotkov <akorotkov@postgresql.org>
>     2021-01-31 [676887a3b] Implementation of subscripting for jsonb
>     Author: Alexander Korotkov <akorotkov@postgresql.org>
>     2021-01-31 [81fcc72e6] Filling array gaps during jsonb subscripting
>     Author: Alexander Korotkov <akorotkov@postgresql.org>
>     2021-01-31 [aa6e46daf] Throw error when assigning jsonb scalar instead of a com
>     -->
>     
>     <para>
>     Allow subscripting of jsonb (Dmitry Dolgov)
>     </para>
>     
>     <para>
>     Subscripting can be used to extract from and assign to jsonb documents.
>     Subscripting is now extensible so extensions and built-in data type can make use of this.
>     </para>
>     </listitem>

I dunno, this seems to approach the feature from the specifics rather
than its full generality.  I would have said something like 

 Make subscripting user-extensible for "container" types
    <!-- maybe "array-like types" -->

  Subscripting JSONB is now integrated in core, and adding user-defined
  subscripting for other types is possible.


-- 
Álvaro Herrera       Valdivia, Chile
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