I'm creating new custom post types and taxonomies for my client and I wanted to prefix their keys so there is no conflict with any plugin that could be installed that would be providing it's own CPT and taxonomies.
At first, I set the prefix to be 3-letter long with an underscore:
xyz_ (it's more unique than that and I checked google - there are no conflicts). However, I started thinking of increasing the length of the prefix to make it even more unique to up to 7 characters, like
xyzabcd_ (again, just a sample).
However, I'm not sure how such change would impact the WP_Query that loops posts by the
post_type column since the value would be longer for my custom post types. The same thing goes for taxonomies... I know that the db column holding that data is a varchar(30) but the actual value stored there would be longer.
Should I be worried about the performance difference here?