TypeMismatchException on object equality expression from one-to-one relationship -------------------------------------------------------------------------------- Key: HHH-2088 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2088 Project: Hibernate3 Type: Bug Components: core Versions: 3.2.0.cr4 Reporter: Salvatore Insalaco Suppose to have entity A with a one-to-one constrained relationship to an entity B, called bRel. The query: "from A a, B b where a.bRel = b" raises a TypeMismatchException, even if bRel and b are instances of the same entity. This happens because in BinaryLogicOperatorNode: - lhsType is org.hibernate.type.Type = org.hibernate.type.OneToOneType(B)", with getColumnSpan returning 0. - rhsType is org.hibernate.type.Type = org.hibernate.type.ManyToOneType(B)", with getColumnSpan returning 1. And it compares the two columnspans. It doesn't happen with 3.2.0.cr2. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira