[GSS](7.0.z) HHH-11740 HHH-11499 Default MultiTableBulkIdStrategy for DB2 does not work with connection pools

1) create a custom Dialect that extends DB2Dialect and overrides #getDefaultMultiTableBulkIdStrategy as follows: {{ @Override public MultiTableBulkIdStrategy getDefaultMultiTableBulkIdStrategy() { // Starting in DB2 9.7, "real" global temporary tables that can be shared between sessions // are supported; (obviously) data is not shared between sessions. return new GlobalTemporaryTableBulkIdStrategy( new IdTableSupportStandardImpl() { @Override public String generateIdTableName(String baseName) { return super.generateIdTableName( baseName ); } @Override public String getCreateIdTableCommand() { return "create global temporary table"; } @Override public String getCreateIdTableStatementOptions() { return "not logged"; } }, AfterUseAction.CLEAN ); } }} 2) provide a custom MultiTableBulkIdStrategy implementation defined like the return value in 1), using hibernate.hql.bulk_id_strategy= custom_strategy