Harjyot Bagga <hsbagga28....@gmail.com> writes:
> One such suggestion or rule for example is the Postgres does not support
> Postfix operators. So whenever a new feature is introduced developers make
> sure that they do not add a postfix operators in their grammar. Just like
> that are there any other further rules or suggestions compiled by post
> hackers and maintainers?

[ shrug... ]  If you try to re-introduce postfix operators you'll get
a ton of shift-reduce conflicts.  We have a hard rule that such
conflicts are not allowed, even though Bison can be told to ignore
them.  Beyond that, there's not much.

                        regards, tom lane


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