ITableMetaData metaData = createDataSet().getTableMetaData(tableName);
ITableMetaData metaData = new DatabaseTableMetaData(tableName, getConnection());
    public void testGetPrimaryKeys() throws Exception    {        String tableName = "PK_TABLE";//        String[] expected = {"PK0"};        String[] expected = {"PK0", "PK1", "PK2"};        ITableMetaData metaData = createDataSet().getTableMetaData(tableName);        Column[] columns = metaData.getPrimaryKeys();        assertEquals("pk count", expected.length, columns.length);        for (int i = 0; i < columns.length; i++)        {            Column column = columns[i];            assertEquals("name", expected[i], column.getColumnName());        }    }