frequencies: add todo about adding a primary key constraint

see also google/transit#514
public-transport · Nov 2, 2024 · 41a14f0 · 41a14f0
1 parent 4e927b2
commit 41a14f0
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/lib/frequencies.js b/lib/frequencies.js
@@ -17,6 +17,9 @@ CREATE TABLE "${opt.schema}".frequencies (
 	end_time INTERVAL NOT NULL,
 	headway_secs INT NOT NULL,
 	exact_times "${opt.schema}".exact_times_v,
+	-- frequencies' primary key currently is just (trip_id, start_time)
+	-- see also https://github.com/google/transit/issues/514
+	-- todo: add primary key?
 	UNIQUE (
 		trip_id,
 		start_time,