ALERT: After Installing PSU 11.2.0.3.7 Errors Occur During Fast Refresh of Certain Materialized View
Please be aware of the fast-refresh issue that can occur with certain materialized views after the application of PSU 11.2.0.3.7. The note "ALERT: After Installing PSU 11.2.0.3.7 Errors Occur During Fast Refresh of Certain Materialized Views (Doc ID 1573704.1)" describes the symptoms, workaround, and solution.
If the fast refresh has been initiated while no change needs to be applied to the mview (e.g. corresponding mview log(s) is (are) empty),
then the refresh completes, but the following error is logged in the alert log:
ORA-01741: illegal zero-length identifier
Otherwise, the fast refresh errors out with ORA-600 error during parsing the mview definition query