From Releases Prior to Ingres 9.2
If you are upgrading from a version of Ingres prior to 9.2, you must use an unload/reload upgrade. Furthermore, you must install Ingres into a new, fresh installation; the original installation cannot be upgraded in-place.
Note: When upgrading from a pre-9.2 installation to a 9.2 or later installation that uses the setting II_CHARSETxx=UTF8, normalization of character data in non-Unicode columns is required. Contact Actian Services to help with an upgrade plan.
Last modified date: 01/30/2023