"Markus Wollny" <Markus(dot)Wollny(at)computec(dot)de> writes:
> I'm currently trying to migrate one of our databases from PostgreSQL 8.2.4 to PostgreSQL 8.3.1. I have worked around the Tsearch2 migration (we used the contrib module) without too much hassle, but find myself stuck at an unexpected point - I get a duplicate key violation for the primary key on one of my tables:
Maybe there actually is a duplicate key in the source DB --- have you
checked? There were some bugs in early 8.2.x releases that could
possibly allow that to happen.
regards, tom lane