Where’s the category permalink stored?

Hello,

Thank you for useful extension.

My version is 1.7.1.
I have in admin area on a category edit page the field “Custom Permalink” which added your extension and on the storefront categories’ URLs changed correctly.

By I need to change many permalinks and want to find them in database for changing. But I didn’t find it in the wp_terms, wp_term_taxonomy, wp_termmeta tables… I also checked posts and postsmeta table but no success…

Please answer where are the category permalinks stored?

P.S. I also don’t see the category permalinks in PostTypes Permalinks list. Only product permalinks are there.