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Emmanuel Bernard resolved ANN-822.
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Resolution: Fixed
Fixed by adding nulalble=false on unique columns
org.hibernate.test.annotations.EntityTest fails because DB2 does not
support unique constraints on nullable columns
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Key: ANN-822
URL:
http://opensource.atlassian.com/projects/hibernate/browse/ANN-822
Project: Hibernate Annotations
Issue Type: Bug
Components: binder
Affects Versions: 3.4.0.GA
Reporter: Gail Badner
Fix For: 3.5
The following org.hibernate.test.annotations.EntityTest tests fail on DB2:
testColumnUnique()
testUniqueConstraint()
DB2 does not support unique constraints on nullable columns. DB2 does support unique
indexes on nullable columns, but only be 1 null value is allowed. (DB2 for z/OS does
appear to allow multiple null values; is that a different dialect?)
When DB2Dialect is used, Hibernate does not create unique constraints or indexes on
nullable columns. This is why the expected constraint violations do not occur in the
tests. The tests give an erroneous message "org.hibernate.TransactionException:
Transaction not successfully started" because an attempt is made to rollback the
transaction after it was successfully committed.
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