feat: database methods to compute percentiles on analysis records

db/db-core/src/lib.rs

@@ -307,6 +307,14 @@ pub trait MCDatabase: std::marker::Send + std::marker::Sync + CloneSPDatabase {
         captcha_key: &str,
         difficulty_factor: u32,
     ) -> DBResult<u32>;
+
+    /// Get number of analytics entries that are under a certain duration
+    async fn stats_get_num_logs_under_time(&self, duration: u32) -> DBResult<usize>;
+
+    /// Get the entry at a location in the list of analytics entires under a certain time limit
+    /// and sorted in ascending order
+    async fn stats_get_entry_at_location_for_time_limit_asc(&self, duration: u32, location: u32) -> DBResult<Option<usize>>;
+
 }
 
 #[derive(Debug, Clone, Default, Deserialize, Serialize, PartialEq)]