Hello Andrew,
I cannot remember a language with elseif* variants, and I find them quite
ugly, so from an aethetical point of view I would prefer to avoid that...
On the other hand having an "else if" capability makes sense (eg do
something slightly different for various versions of pg), so that would
suggest to stick to a simpler "if" without variants, if possible.
FTR I *strongly* disagree with this. (And if you can't remember a language
that comes with them then you need to get out more. The Bourne shell, where
it's spelled "elif", and Ada are two obvious examples.)
There may be a misunderstanding somewhere.
I'm rather in favor of having "elif/elsif/elseif/..." constructs,
especially if they can be useful in realistic examples, which is not clear
yet for psql scripts.
I'm arguing against "if/elif" *variants* in the sense of various
conditional semantics: e.g. in cpp you have several "if"s (ifdef ifndef
if), but you do not have all the corresponding "elif"s (elifdef
elifndef...), there is only one "elif". In cpp "ifdef"/"ifndef" were
obsoleted by "if" with minimal expression support (#if
!defined(HAS_SOMETHING) ...) and only this "if" has its "elif".
--
Fabien.
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