Why these warnings in the application server log on environment startup

Products

• CA Identity Manager
• CA Identity Governance
• CA Identity Portal
• CA Risk Analytics
• CA Secure Cloud SaaS - Arcot A-OK (WebFort)
• CLOUDMINDER ADVANCED AUTHENTICATION
• CA Secure Cloud SaaS - Advanced Authentication
• CA Secure Cloud SaaS - Identity Management
• CA Secure Cloud SaaS - Single Sign On

Issue/Introduction

On the first start of the IM environment the tables were created in the database. However, I did notice the following in the server.log. What is the reason?

12:39:58,877 WARN [ims.jdbc.JDBCSchema] (ServerService Thread Pool -- 67) Column updated for USER_NAME in table IM_AUTH_USER with type varchar(32)

Environment

Release: CAIDMB99000-12.6.8-Identity Manager-B to B
Component:

Resolution

Database schema defines the type of the column USER_NAME as varchar32, but IM metadata defines  the same as nvarchar2(255), so during startup, when they are compared, a warning is given if they differ.

This will not have any problem/impact on the Identity Manager. as this table is used only for authentication to management console.