Horton

Re: general purpose array_sort

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Junwang Zhao <zhjwpku@gmail.com>
Cc: jian he <jian.universality@gmail.com>, Amit Langote <amitlangote09@gmail.com>, "David G. Johnston" <david.g.johnston@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, "andreas@proxel.se" <andreas@proxel.se>, Robert Haas <robertmhaas@gmail.com>
Date: 2024-10-13T20:10:39Z
Lists: pgsql-hackers 
Junwang Zhao <zhjwpku@gmail.com> writes:
> It seems there is not much meaning to sort composite type,
> so are you proposing we should error on that?

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.

			regards, tom lane

Commits

  1. Introduce a SQL-callable function array_sort(anyarray).

  2. Fix ARRAY_SUBLINK and ARRAY[] for int2vector and oidvector input.

  3. Re-implement the ereport() macro using __VA_ARGS__.