On Mon, Oct 28, 2013 at 12:34 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> ... we could leave the parentheses out in
>> whichever case it's equivalent to.
>
> Ah, I see what you're getting at now. Yeah, that might be a useful
> readability improvement.
>
>> ... I fairly commonly
>> write queries that involve multiple UNION ALL branches and, no matter
>> how clever we are, having that lead to progressively deeper nesting at
>> each level is not going to look nice.
>
> Agreed. I was wondering myself whether we couldn't fix things so that
> all the branches are indented the same, even with parens.
Hmm, yeah, maybe. Not sure how ugly it'd be.
--
Robert Haas
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