I had your prior message on my "to look at" list; the behavior seems
pretty odd. Two questions:
1. Which version are you running, exactly?
2. Might 'peripherals & access' happen to be the largest (last in
sort order) keyword present in your table?
If #2 is true, then this might represent some sort of boundary-condition
misbehavior in the cost estimator. But I don't see anything like it
happening in current sources.
regards, tom lane
