public static ProxyBackendHandler newInstance(final SQLStatement sqlStatement, final ConnectionSession connectionSession) {
        return createBackendHandler(sqlStatement, connectionSession);
    }
@Test
    void assertDatabaseOperateBackendHandlerFactoryThrowUnsupportedOperationException() {
        assertThrows(UnsupportedSQLOperationException.class, () -> DatabaseOperateBackendHandlerFactory.newInstance(mock(AlterDatabaseStatement.class), mock(ConnectionSession.class)));
    }