From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Bruce Momjian <bruce(at)momjian(dot)us> |
Cc: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: PG 14 release notes, first draft |
Date: | 2021-05-17 03:17:46 |
Message-ID: | 2706967.1621221466@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
Bruce Momjian <bruce(at)momjian(dot)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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