这个MySQL语句出了什么问题?

$my->query("UPDATE ideas 
               SET category = 'Document Options', 
                   category_id = '4',
                   status = 'Released',
                   status_id = '3', 
                   title = 'Support for iPad', 
                   idea = 'Add support for iPad. Allow uploads and downloads via the anonymous App for iPhone and iPad.', 
                   release = '0',
                   release_date = ''
             WHERE id = '225'");

$my 是一个自定义类,其中包含许多其他mysql命令。为了证明它运行良好,它适用于以下查询:

$my->query("UPDATE idea_feedback
               SET Feedback = '$feedback',
                   Date = '$fdate' 
             WHERE ID = '$i'");