On Wednesday, February 1, 2023, Ron <ronljohnso...@gmail.com> wrote:
>
>
> https://www.postgresql.org/docs/12/sql-select.html
>
> The docs say that one of these are required in the SELECT list.
>
> [ * | *expression* [ [ AS ] *output_name* ] [, ...] ]
>
>
The square brackets you show are how optional elements are introduced so
while those two options exists neither are required.

David J.

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