8.1beta1: pg_dumpall -c does delete from pg_shadow?

Hey all.

Playing around, and pg_dumpall -c does delete from pg_shadow as
part of the role cleanup?

Our friendly psql complains that pg_shadow is a view:

psql:<filename>:11: ERROR: cannot delete from a view
HINT: You need an unconditional ON DELETE DO INSTEAD rule.

And then:

psql:<filename>:13: ERROR: role "<role1>" already exists
psql:<filename>:14: ERROR: role "<role2>" already exists
psql:<filename>:15: ERROR: role "<role3>" already exists

I assume this is easily reproduceable for others...

Cheers,
mark

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