保存数据库时键入3自定义内容字段错误

我添加了一些内容字段,如下所示;

$temporaryColumnHC = array(
    'my_type' => array(
        'exclude' => 0,
        'label'   => 'My Type',
        'config' => array(
            'type' => 'select',
            'renderType' => 'selectSingle',
            'items' => array(
                array('Bar', 'bar'),
                array('Pie', 'pie'),
                array('Donut', 'donut'),
                array('Line', 'line'),
                array('Bar 2', 'bar2'),
                array('Bar 3', 'bar3'),
                array('Bubble', 'bubble'),
            )
        )
    ),

    'my_suffix' => array(
        'exclude' => 0,
        'label'   => 'My Label Suffix',
        'config' => array(
            'type' => 'input',
            'size' => 10,
            'max' => 20
        )
    ),
    'my_source_url' => array(
        'exclude' => 0,
        'label'   => 'Source URL',
        'config' => array(
            'type' => 'input',
            'renderType' => 'inputLink'
        )
    ),
    'my_source' => array(
        'exclude' => 0,
        'label'   => 'Source Text',
        'config' => array(
            'type' => 'text',
            'cols' => 40,
            'rows' => 15
        )
    ),

);
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTCAcolumns(
    'tt_content',
    $temporaryColumnHC
);

error  [1620]: Unknown column 'suffix' in 'field list'

我要做的是将这些字段保存在数据库中