I am looking to creat an index table to speed up the search instances on my website. I can not however figure out how to include users in the index table. In essence, I would like to index wordpress display_name, having over 45k user on the site registered via the Ultimate Member plugin with display names set to standard wordpress display_name tag.
I’m afraid users can not be indexed at the moment.The users table is already indexed within the WordPress core.
If you are only using the search to search for users by their names (and not for post types or anything else), then you could in theory gain some performance with the following logics configuration: https://i.imgur.com/XTGgYlR.png