要通过phpmyadmin运行的SQL查询

DELETE a,b,c FROM wp_posts a LEFT JOIN wp_term_relationships b ON (a.ID = b.object_id)
LEFT JOIN wp_postmeta c ON (a.ID = c.post_id) WHERE a.post_type = \'revision\'  

您还可以在wp\\u config中添加一行。php将禁用修订（可选，我使用它是因为我发现修订有点痛苦）

define(\'WP_POST_REVISIONS\', false);