Ah, it looks like we can get away with initializing the RRI to 0, and
then explicitly handle that case in ExecPartitionCheckEmitError, as in
the attached (which means reindenting, but I left it alone to make it
easy to read). It kinda sucks because we don't report the tuple that
causes the error, but
a) it's a very unlikely case anyway
b) it's better than the bogus error message
c) it's better than some hypothetical crash
d) nobody uses partitioned default partitions anyway
e) nobody uses differing column order anyway
--
Álvaro Herrera https://www.2ndQuadrant.com/
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