flyway

database/migrations/V2__add_unique_index_weather_data.sql

@@ -0,0 +1,6 @@
+-- Flyway V2: Ensure weather_data upsert works by providing a unique index
+-- This migration assumes V1 baseline corresponds to the current init.sql schema
+
+CREATE UNIQUE INDEX IF NOT EXISTS ux_weather_data_property_date
+  ON weather_data(property_id, date);
+

database/migrations/add_unique_constraint_weather_data.sql

@@ -1,18 +0,0 @@
--- Ensure weather_data upsert works by providing a unique index
--- Safe to run multiple times
-DO $$
-BEGIN
-  IF EXISTS (
-    SELECT 1 FROM pg_indexes 
-    WHERE schemaname = 'public' AND indexname = 'idx_weather_data_property_date'
-  ) THEN
-    DROP INDEX IF EXISTS idx_weather_data_property_date;
-  END IF;
-EXCEPTION WHEN undefined_table THEN
-  -- table may not exist yet in some environments; ignore
-  NULL;
-END $$;
-
-CREATE UNIQUE INDEX IF NOT EXISTS ux_weather_data_property_date
-  ON weather_data(property_id, date);
-