pub fn preference_applied(
prefs: &Preferences,
relevance: PreferenceScope,
) -> Option<String>Expand description
Build the Preference-Applied header.
Only preferences that were asked for, and only those the request could
honour: return=representation says nothing on a read, and missing
nothing on a delete. PostgREST filters the same way and in this order,
and a client comparing the header against what it sent will notice.
applied records what was asked for, since a parsed field cannot say
whether its value was requested or is merely its default.