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java.sql.SQLException: ERROR: operator does not exist: boolean = integer	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1471)	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1256)	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:175)	at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:389)	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:330)	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:240)	at net.sf.hibernate.impl.BatcherImpl.getResultSet(BatcherImpl.java:89)	at net.sf.hibernate.loader.Loader.getResultSet(Loader.java:880)	at net.sf.hibernate.loader.Loader.doQuery(Loader.java:273)	at net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:138)	at net.sf.hibernate.loader.Loader.doList(Loader.java:1063)	at net.sf.hibernate.loader.Loader.list(Loader.java:1054)	at net.sf.hibernate.hql.QueryTranslator.list(QueryTranslator.java:854)	at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1554)	at net.sf.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:58)	at net.sf.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)	at net.sf.hibernate.impl.SessionImpl.convert(SessionImpl.java:4131)	at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1557)	at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1531)	at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1523)	at org.hibernate.test.FooBarTest.testQuery(FooBarTest.java:391)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at org.hibernate.test.TestCase.runTest(TestCase.java:107)