Re: [HACKERS] WIP: Faster Expression Processing v4

On 3/7/17 19:14, Andres Freund wrote:
>> Why shouldn't the function itself also depend on the components of its
>> return type?
> Because that'd make it impossible to change the return type components -
> if the return type is baked into the view that's necessary, but for a
> "freestanding function" it's not.  If you e.g. have a function that just
> returns a table's rows, it'd certainly be annoying if that'd prevent you
> from dropping columns.

I think functions breaking when the return type is fiddled with is
actually a not-uncommon problem in practice.  It would be nice if that
could be addressed.  Not necessarily in this patch, but I would like to
keep the options open.  Comments from others would be welcome on this.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
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