ITableMetaData metaData = createDataSet().getTableMetaData(tableName);
ITableMetaData metaData = new DatabaseTableMetaData(tableName, getConnection());
    public void testGetNoPrimaryKeys() throws Exception    {        String tableName = "TEST_TABLE";        ITableMetaData metaData = createDataSet().getTableMetaData(tableName);        Column[] columns = metaData.getPrimaryKeys();        assertEquals("pk count", 0, columns.length);    }