need_paren = (PRETTY_PAREN(context) ? !IsA(op->rarg, RangeTblRef) : true);
In a quick glance this code seems close to completely brain dead :-( For one thing, why isn't it making separate determinations about whether the left and right inputs of the UNION (resp INTERSECT or EXCEPT) operator need to be parenthesized? After that maybe we could figure out what the individual decisions need to be.
So what are we going to do about it?
Was it one of the pgAdmin guys who wrote it in the first place?
Chris
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