On 2022-May-31, Tom Lane wrote:
> Detail is far from "free". Most readers are going to spend more time
> wondering what the difference is between "columns per table" and "columns
> per tuple", and which limit applies when, than they are going to save by
> having the docs present them with two inconsistent numbers.
I think it's reasonable to have two adjacent rows in the table for these
two closely related things, but rather than "columns per tuple" I would
label the second one "columns in a result set". This is easy enough to
understand and to differentiate from the other limit.
(Replacing "in a" with "per" sounds OK to me but less natural, not sure
why.)
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