One of my database is realy heavy (+100Mo) for a site with not so many content (like 40 pages & 10 posts)). I found in phpmyadmin that my table "postmeta" is 95Mo. So i wonder to know what are the data that takes so many place... !
i run a DB optimizer plugin (Advanced Database Cleaner) that help me go down to 92Mo, for only 2261 rows in table. ( Before, whas much more but i don't remember the number of lines ).
usualy my WP postmeta table is 2 to 5 mo for 4k rows...
I thinks this is linked to my theme, but i have no idea how to know wich data is so heavy. So how can i know wich are the heavy lines in my database ?
in text export, the more biggest rows is like this : (maybe it can help ?) https://pastebin.com/DMRQw3mD