Re: general purpose array_sort
От | David G. Johnston |
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Тема | Re: general purpose array_sort |
Дата | |
Msg-id | CAKFQuwYTorYsxiOW0Mh7oS-bqrGt9RCibPfw7K=on21Cj9EckA@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: general purpose array_sort (Aleksander Alekseev <aleksander@timescale.com>) |
Ответы |
Re: general purpose array_sort
|
Список | pgsql-hackers |
On Thu, Oct 24, 2024 at 7:58 AM Aleksander Alekseev <aleksander@timescale.com> wrote:
Hi,
> It's hardly "general purpose" if it randomly refuses to
> sort certain types. I would say it should be able to sort
> anything that ORDER BY will handle --- and that certainly
> includes the cases shown here.
I wonder how useful / convenient the new function will be considering
that we already have CTEs and can do:
SELECT array_agg(x ORDER BY x) FROM unnest(ARRAY[5,1,3,2,4]) AS x;
Perhaps there are use cases I didn't consider?
Succinctness of expression. Plus I'm under the impression that a function doing this is going to be somewhat faster than composing two functions together within a multi-node subtree.
I feel like the same observation could have been made for array_shuffle but we added that. This function being added feels to me like just completing the set.
David J.
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