Erroneous SQL goes to Oracle when using operator IN with composite key ---------------------------------------------------------------------- Key: ANN-707 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-707 Project: Hibernate Annotations Issue Type: Bug Affects Versions: 3.3.1.CR1 Environment: Hibernate 3.2.6 Hibernate Annotations 3.3.1.CR1 Hibernate EntityManager 3.3.2.CR1 Oracle 10g Reporter: botWi entity Footballer has composite primary key defined via @IdClass and @Id getters (see http://www.hibernate.org/hib_docs/annotations/reference/en/html_single/#e...) entity Goal has property 'footballer' defined via @ManyToOne query select g from Goal g where g.footballer in (select f from Footballer f where f.age=22) is translated to erroneous SQL select goal0_.id as col_0_0_ from tgoal goal0_ where (goal0_.fb_firstname, goal0_.fb_lastname) in (select (footballer1_.fb_firstname, footballer1_.fb_lastname) from tfootballer footballer1_ where footballer1_.age=22) it's strange, but the slightly modified query select g from Goal g where g.footballer.id in (select f.id from Footballer f where f.age=22) is translated to valid SQL select goal0_.id as col_0_0_ from tgoal goal0_ where (goal0_.fb_firstname, goal0_.fb_lastname) in (select footballer1_.fb_firstname, footballer1_.fb_lastname from tfootballer footballer1_ where footballer1_.age=22) -- 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