chore: Add _cumulative suffix to counter metrics (#474)

crates/core/src/db/db_metrics/mod.rs

@@ -50,18 +50,18 @@ metrics_group!(
         #[labels(table_id: u32)]
         pub rdb_delete_by_rel_time: HistogramVec,
 
-        #[name = spacetime_num_rows_inserted]
-        #[help = "The number of rows inserted into a table"]
+        #[name = spacetime_num_rows_inserted_cumulative]
+        #[help = "The cumulative number of rows inserted into a table"]
         #[labels(txn_type: TransactionType, database_id: u64, reducer_id: u64, table_id: u32)]
         pub rdb_num_rows_inserted: IntCounterVec,
 
-        #[name = spacetime_num_rows_deleted]
-        #[help = "The number of rows deleted from a table"]
+        #[name = spacetime_num_rows_deleted_cumulative]
+        #[help = "The cumulative number of rows deleted from a table"]
         #[labels(txn_type: TransactionType, database_id: u64, reducer_id: u64, table_id: u32)]
         pub rdb_num_rows_deleted: IntCounterVec,
 
-        #[name = spacetime_num_rows_fetched]
-        #[help = "The number of rows fetched from a table"]
+        #[name = spacetime_num_rows_fetched_cumulative]
+        #[help = "The cumulative number of rows fetched from a table"]
         #[labels(txn_type: TransactionType, database_id: u64, reducer_id: u64, table_id: u32)]
         pub rdb_num_rows_fetched: IntCounterVec,
     }