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[PersistenceUnit: OpenAdsPU] Unable to build Hibernate SessionFactory An object or column name is missing or empty. For SELECT INTO statements, verify each column has a name. For other statements, look for empty alias names. Aliases defined as "" or [] are not allowed. Change the alias to a valid name.	at	at	at	at	at$1ConnectionCommand.doExecute(	at	at	at	at	at	at	at	at	at org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl.locateTableInNamespace(	at org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl.getTable(	at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.getTableInformation(	at org.hibernate.tool.schema.internal.SchemaValidatorImpl.doValidation(	at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(	at org.hibernate.internal.SessionFactoryImpl.(	at	at	at	at$1$	at$1$	at	at$	at java.util.concurrent.ThreadPoolExecutor.runWorker(	at java.util.concurrent.ThreadPoolExecutor$	at	at