Re: pg_upgrade and statistics

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>

To: Bruce Momjian <bruce@momjian.us>

Cc: Kevin Grittner <Kevin.Grittner@wicourts.gov>, Peter Eisentraut <peter_e@gmx.net>, Daniel Farina <daniel@heroku.com>, Greg Stark <stark@mit.edu>, pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2012-03-14T00:30:17Z

Lists: pgsql-hackers

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