I am pruning my WordPress site's MySQL database and noticed that there are thousands of rows in the postmeta table with the prefix "BS_".

BS_author_type
BS_guest_author_name
BS_guest_author_url
BS_guest_author_description
BS_guest_author_image_id

Are these generated by WordPress or by a plugin that I might have added and removed before? I tried googling the meta-keys as well as the prefix BS_ and the only result I got is a Romanian webpage with random code and a few images on it.

I am pruning my WordPress site's MySQL database and noticed that there are thousands of rows in the postmeta table with the prefix "BS_".

BS_author_type
BS_guest_author_name
BS_guest_author_url
BS_guest_author_description
BS_guest_author_image_id

Are these generated by WordPress or by a plugin that I might have added and removed before? I tried googling the meta-keys as well as the prefix BS_ and the only result I got is a Romanian webpage with random code and a few images on it.

• database
• post-meta
• mysql
• wpdb

• 2 They're from wordpress/plugins/guest-author. The keys obviously suggested they were from a guest author plugin, so I searched Google for guest author plugins, opened the first result, browsed the code, and found that it uses those keys. – Jacob Peattie Commented Jun 10, 2020 at 15:40
• @JacobPeattie Thanks man. Can u u please add that as an answer so I could accept it? – AndrewL64 Commented Jun 10, 2020 at 15:58

1 Answer 1

They're from wordpress/plugins/guest-author. The keys suggested they were from a guest author plugin, so I searched Google for guest author plugins, opened the first result, browsed the code, and found that it uses those keys.