refactor(db)!: finalize pooled WNDB v2 migration

app/infra/db/timescaledb/repositories/scada.py

@@ -35,7 +35,8 @@ class ScadaRepository:
     ) -> List[dict]:
         async with conn.cursor() as cur:
             await cur.execute(
-                "SELECT * FROM scada.measurements WHERE device_id = ANY(%s) AND time >= %s AND time <= %s",
+                "SELECT * FROM scada.measurements WHERE device_id = ANY(%s) "
+                "AND time >= %s AND time <= %s ORDER BY device_id, time",
                 (device_ids, start_time, end_time),
             )
             return await cur.fetchall()
@@ -49,7 +50,8 @@ class ScadaRepository:
     ) -> List[dict]:
         with conn.cursor(row_factory=dict_row) as cur:
             cur.execute(
-                "SELECT * FROM scada.measurements WHERE device_id = ANY(%s) AND time >= %s AND time <= %s",
+                "SELECT * FROM scada.measurements WHERE device_id = ANY(%s) "
+                "AND time >= %s AND time <= %s ORDER BY device_id, time",
                 (device_ids, start_time, end_time),
             )
             return cur.fetchall()
@@ -88,7 +90,9 @@ class ScadaRepository:
             raise ValueError(f"Invalid field: {field}")
 
         query = sql.SQL(
-            "SELECT device_id, time, {} FROM scada.measurements WHERE time >= %s AND time <= %s AND device_id = ANY(%s)"
+            "SELECT device_id, time, {} FROM scada.measurements "
+            "WHERE time >= %s AND time <= %s AND device_id = ANY(%s) "
+            "ORDER BY device_id, time"
         ).format(sql.Identifier(field))
 
         async with conn.cursor() as cur:
@@ -122,6 +126,31 @@ class ScadaRepository:
             if cur.rowcount == 0:
                 await cur.execute(insert_query, (time, device_id, value))
 
+    @staticmethod
+    async def update_scada_field_batch(
+        conn: AsyncConnection,
+        rows: list[tuple[datetime, str, float | None]],
+        field: str,
+    ) -> int:
+        """Update existing SCADA samples in one set-based statement."""
+        valid_fields = {"monitored_value", "cleaned_value"}
+        if field not in valid_fields:
+            raise ValueError(f"Invalid field: {field}")
+        if not rows:
+            return 0
+
+        query = sql.SQL(
+            "UPDATE scada.measurements AS measurement SET {} = batch.value "
+            "FROM unnest(%s::timestamptz[], %s::text[], %s::double precision[]) "
+            "AS batch(time, device_id, value) "
+            "WHERE measurement.time = batch.time "
+            "AND measurement.device_id = batch.device_id"
+        ).format(sql.Identifier(field))
+        times, device_ids, values = zip(*rows)
+        async with conn.cursor() as cur:
+            await cur.execute(query, (list(times), list(device_ids), list(values)))
+            return cur.rowcount
+
     @staticmethod
     async def delete_scada_by_id_time_range(
         conn: AsyncConnection, device_id: str, start_time: datetime, end_time: datetime