For columns in the pingfederate_oauth_clients and pingfederate_oauth_clients_ext tables
VARCHAR data type, PingFederate 7.3 updated the data type to
NVARCHAR for performance reasons.
This information is applicable only to customers who have deployed Microsoft SQL Server to store their OAuth clients.
The table-setup script, <pf_install>/pingfederate/server/default/conf/oauth-client-management/sql-scripts/oauth-client-management-sqlserver, has been updated. If you are upgrading from PingFederate 7.2 R2 or an earlier version with OAuth use cases, consider updating the data type in both tables accordingly for performance reasons. Consult with your database administrator, as needed.