[seam-issues] [JBoss JIRA] Closed: (JBSEAM-4745) EntityQuery.resultList throws a exception when the entity has composite key

EntityQuery.resultList throws a exception when the entity has composite key --------------------------------------------------------------------------- Key: JBSEAM-4745 URL: https://issues.jboss.org/browse/JBSEAM-4745 Project: Seam Issue Type: Bug Components: Framework Affects Versions: 2.2.0.GA, 2.2.1.CR1 Environment: Fedora 12, JDK 1.6 sun/oracle, Seam 2.2.1 CR1, MySQL 5 Reporter: Alessandro Lazarotti Assignee: Alessandro Lazarotti Labels: entity-query, hibernate Fix For: 2.2.1.Final Hibernate has a known trouble running queries using "count" when the entity has composite keys, like: select count(foobar) from Foobar foobar: - ERROR [JDBCExceptionReporter] Operand should contain 1 column(s) Seam EntityQuery has a workaround, using count(*) instead of count(alias)(spec way) if you use entityQuery.resultCount. It's works with Seam 2.0.x but no more in Seam 2.2.x