Bruce Momjian <pgman@candle.pha.pa.us> writes:
>>> I always rip that stuff out. We do an initdb for every release. What
>>> could break by renumbering those nodes?
>>
>> Actually, since we don't store node type numbers on disk (just symbolic
>> names), there's probably nothing that could break as long as people do a
>> full recompile when they update. It's no worse than changing the fields
>> of a widely-used struct, I suppose. I was just being paranoid.
On third thought, there is some value to preserving the node numbers:
when we see a bug report from the field like
ERROR: ExecEvalExpr: unknown expression type 108
we don't have to resort to excavating back versions of nodes.h to figure
out which node type is meant.
regards, tom lane
