Re: invalidating cached plans

Neil Conway wrote:
> Do we want to share plans between call sites?

After thinking about this a little more, I think the answer is "no" -- 
it doesn't really buy us much, and introduces some extra complications 
(e.g. resource management).

BTW, it's quite annoying that the planner scribbles on its input. I've 
got half a mind to fix this before doing the rest of the cache 
invalidation work. That might be quite a large project, however...

-Neil