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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <bruce@momjian.us>
cc: Alvaro Herrera <alvherre@alvh.no-ip.org>,
        Justin Pryzby <pryzby@telsasoft.com>, pgsql-hackers@postgresql.org
Subject: Re: PG 14 release notes, first draft
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References: <20210515231228.GA3353@alvherre.pgsql>
 <2483193.1621132028@sss.pgh.pa.us> <20210517030628.GB24531@momjian.us>
Comments: In-reply-to Bruce Momjian <bruce@momjian.us>
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Bruce Momjian <bruce@momjian.us> writes:
> OK, I moved the entry into 'data types', and listed two entries instead
> of one:
	=

> 	<para>
> 	Allow extensions and built-in data types to implement subscripting (Tom=
 Lane)
> 	</para>

Better, but Dmitry Dolgov gets the credit not me.

> 	<para>
> 	Previously subscript handling was hard-coded into the server and
> 	was difficult to add to date types.
> 	</para>
> 	</listitem>

"Difficult"?  I don't think it was possible at all.  Perhaps

	Previously subscript handling was hard-coded into the server,
	so that subscripting could only be applied to array types.
	This change allows subscript notation to be used to extract
	or assign portions of a value of any type for which the concept
	makes sense.

> 	JSONB subscripting can be used to extract from and assign to
> 	JSONB documents.

Perhaps "extract and assign to portions of JSONB documents" or
something like that?

			regards, tom lane