Support » Plugins and Hacks » alter postmeta to set meta_value to varchar(255)
7 years ago
is it will be wrong if i altered postmeta table
to change meta_value field type from longtext to varchar(255)
i do this to can index (meta_value)
It seems you could do that but I would make a backup of your database tables first. See WordPress Backups.
Better yet try it on a test blog first (like install XAMPP and WordPress on local PC).