Bruce Momjian <bruce@momjian.us> writes:
> Another idea is to just copy over pg_statistic like we copy of
> pg_largeobject now, and force autovacuum to run.
That would be an automatic crash in a 9.1 to 9.2 migration, as well as
any other release where we changed the column layout of pg_statistic.
regards, tom lane
