Wikimedia Bugzilla is closed!

You seem to have forgotten to ALTER the type of oi_metadata to BYTEA in updaters.inc.

By the way: In maintenance/postgres/tables.sql, there is an inconsistency between the definitions of tables "image" and "oldimage". oi_bits, oi_timestamp, oi_major_mime and oi_minor_mime are defined as NOT NULL while the corresponding fields in table "image" have no NOT NULL restriction. This might cause troubles when copying rows from image to oldimage.