When you use the
register post type and
register taxonomy functions in your functions.php, where do all that setting info get stored in regards to the CT's and CPT's you are registering?
I'm talking about the settings such as whether the CPT is public or not, which custom post types work with which registered taxonomies, whether custom taxonomy is hierarchical or not etc.
Is that all on the server memory? If so, what's the reason of not saving it on the database -for example in wp_options table?
wp_options table specifically deal with stuff like this?