On fre, 2011-02-18 at 11:45 -0500, Tom Lane wrote:
> While testing a fix for this, I observe that pg_dump is entirely
> broken on the subject, because it fails to dump anything at all about
> the typcollation property when dumping a base type.
This is now fixed.
> I also rather wonder
> exactly what pg_dump would dump to restore a value of
> pg_type.typcollation that's not either 0 or 100.
It does what pg_dump does with other unrecognized or invalid type
attributes: it ignores them.