SQL queries with "is null" does not work in DB2

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.1 EE SP4 (5.1.7), 5.2 EE SP2 (5.2.6)
• Fix Version/s: 5.1 EE SP5 (5.1.8), 5.2 EE SP3 (5.2.7)
• Component/s: Core Infrastructure > Upgrade Framework, Environments > Databases
• Labels: None
• Environment: DB2

SQL queries with "is null" in the query does not work in DB2 because this phrase is stripped out of the query. This bug specifically prevents the portal from upgrading from 5.1 to 5.2.