Re: Document aggregate functions better w.r.t. ORDER BY

On Thu, Oct 26, 2023 at 03:44:14PM -0700, David G. Johnston wrote:
> On Thu, Oct 26, 2023 at 3:36 PM Bruce Momjian <bruce(at)momjian(dot)us> wrote:
>
> No sneaking.  ;-)  It would be bad to document this unevenly because it
> sets expectations in other parts of the system if we don't mention it.
>
>
> Agreed.
>
> Last suggestion, remove the first jsonb_agg example that lacks an order by.
>
> +WITH vals (k, v) AS ( VALUES ('key0','1'), ('key1','3'), ('key1','2') )
> +SELECT jsonb_object_agg(k, v) FROM vals;
> +      jsonb_object_agg
> +----------------------------
> + {"key0": "1", "key1": "2"}
> +
>
> We shouldn't write an example that relies on the rows being evaluated 1-2-3
> without specifying an order by clause.

Sure, done in the attached patch.

--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com

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