jwieck(at)debis(dot)com (Jan Wieck) writes:
> I've only noticed while browsing through the code why he did
> comment out those things. He's comparing memoy addresses of
> nodes, what doesn't work any more after copyObject(). If he's
> not available right now, we must fix that part.
Is there more to do than using equal() instead of a plain pointer
compare?
There might be --- for example the collapsing-UNION problem I mentioned
yesterday is a case where using equal() allows an overly aggressive
optimization. Where are these comparisons and what are they for?
regards, tom lane