Dmitry Dolgov <9erthali...@gmail.com> writes:
> I'm thinking about this in the following way: the core jumbling logic is
> responsible for deriving locations based on the input expressions; in
> the case of merging we produce less locations; pgss have to represent
> the result only using locations and has to be able to differentiate
> simple locations and locations after merging.
Uh ... why? ISTM you're just going to elide all inside the IN,
so why do you need more than a start and stop position?
regards, tom lane
