Re: Sanding down some edge cases for PL/pgSQL reserved words

Hi

>
> 1. AFAICS, there is no real reason for STRICT to be a reserved
> rather than unreserved PL/pgSQL keyword, and for that matter not
> EXECUTE either. Making them unreserved does allow some ambiguity,
> but I don't think there's any surprises in how that ambiguity
> would be resolved; and certainly we've preferred ambiguity over
> introducing new reserved keywords in PL/pgSQL before. I think
> these two just escaped that treatment by dint of being ancient.
>
>
I checked other reserved keywords and I didn't see any reason to be
reserved keywords
for K_TO, K_NOT.

K_FOREACH, and K_WHILE are reserved probably because are used after
opt_loop_label - but it is not necessary

Other keywords are used as some delimiter or as protection against parser's
conflicts.

Regards

Pavel