Fixing Comment Counts in WordPress
As I’ve just migrated to using WordPress for my blog, I thought I’d add some useful information in my first post.
WordPress caches comment counts for each individual article in wp_posts.comment_count. If for some reason these cached values don’t match up to the real comment counts per article, you can fix this using the following SQL. This applies to WordPress 2.3. I don’t know if it will work for anything else.
UPDATE wp_posts
SET comment_count = (
SELECT COUNT(*)
FROM wp_comments
WHERE wp_posts.ID=wp_comments.comment_post_id
GROUP BY wp_comments.comment_post_id
);
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