Re: makeAndExpr(), etc. confined to gram.y?

On Wed, Jun 25, 2014 at 1:27 PM, Tom Lane  wrote:
> Amit Langote  writes:
>> Is there a reason why they've been left out of
>> makefuncs.h/makefuncs.c? Perhaps they are not supposed to be used
>> outside gram.y at all? For example, previously a caller (potentially)
>> outside parser could do a makeA_Expr(AEXPR_AND, ...). I guess this is
>> no longer possible with AEXPR_AND gone?
>
> What would be the purpose?  There is noplace except gram.y that builds
> raw parse trees.
>

Yeah, that is true. Sorry, I am unaware as to how generic make*
functions in gram.y are and how they differ from those in makefuncs.c.

So, use of make* family of functions outside parser is their abuse in
some way? Anything that needs to use these functions should somehow be
accomplished in parser perhaps. For example, duplicate/redundant CHECK
expressions elimination and such?

--
Amit