在WordPress导数据时,可能会遇到类似的SQL语句,例如:
SELECT post_date,post_title, post_content,comment_status,ping_status,post_password, post_name,post_status,post_type,COUNT(pm.meta_id) AS comments_count FROM wp_posts LEFT JOIN wp_postmeta pm ON ( wp_posts.ID = pm.post_id) WHERE (post_type = 'post') AND (post_status = 'publish') GROUP BY wp_posts.ID ORDER BY post_date DESC LIMIT 0, 10;
SET @@global.sql_mode= '';
打开wp-db.php文件,找到下面的代码:
$orderby_array[] = "{$groupby} ASC";
改为:
$orderby_array[] = "MIN({$groupby}) ASC";
下面是两个示例,帮助读者更好的理解如何使用上述方法修复WordPress中的数据导入问题:
示例一:修改SQL语句
假设我们在WordPress中执行了如下的SQL操作:
$posts = $wpdb->get_results("SELECT post_date,post_title,post_content,comment_status,ping_status,post_password, post_name,post_status,post_type,COUNT(pm.meta_id) AS comments_count FROM wp_posts LEFT JOIN wp_postmeta pm ON ( wp_posts.ID = pm.post_id) WHERE (post_type = 'post') AND (post_status = 'publish') GROUP BY wp_posts.ID ORDER BY post_date DESC LIMIT 0, 10");
示例二:调整MySQL的校验级别
SET @@global.sql_mode= '';
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