From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <bruce@momjian.us>
Cc: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Justin Pryzby <pryzby@telsasoft.com>
Cc: pgsql-hackers@postgresql.org
Subject: Re: PG 14 release notes, first draft
Date: Sun, 16 May 2021 23:17:46 -0400
Message-ID: <2706967.1621221466@sss.pgh.pa.us> (raw)
In-Reply-To: <20210517030628.GB24531@momjian.us>
References: <20210515231228.GA3353@alvherre.pgsql>
<2483193.1621132028@sss.pgh.pa.us>
<20210517030628.GB24531@momjian.us>
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
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To: pgsql-hackers@postgresql.org
Cc: tgl@sss.pgh.pa.us, bruce@momjian.us, alvherre@alvh.no-ip.org, pryzby@telsasoft.com
Subject: Re: PG 14 release notes, first draft
In-Reply-To: <2706967.1621221466@sss.pgh.pa.us>
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