Fix: Take max interval end for a model into account even when there's…

… a restatement interval (#3913)

sqlmesh/core/plan/builder.py

@@ -292,11 +292,6 @@ def _build_dag(self) -> DAG[SnapshotId]:
     def _build_restatements(
         self, dag: DAG[SnapshotId], earliest_interval_start: TimeLike
     ) -> t.Dict[SnapshotId, Interval]:
-        def is_restateable_snapshot(snapshot: Snapshot) -> bool:
-            if not self._is_dev and snapshot.disable_restatement:
-                return False
-            return not snapshot.is_symbolic and not snapshot.is_seed
-
         restate_models = self._restate_models
         if restate_models == set():
             # This is a warning but we print this as error since the Console is lacking API for warnings.

sqlmesh/core/snapshot/definition.py

@@ -1745,14 +1745,14 @@ def missing_intervals(
             snapshot = snapshot.copy()
             snapshot.intervals = snapshot.intervals.copy()
             snapshot.remove_interval(restated_interval)
-        else:
-            existing_interval_end = interval_end_per_model.get(snapshot.name)
-            if existing_interval_end:
-                if to_timestamp(snapshot_start_date) >= existing_interval_end:
-                    # The start exceeds the provided interval end, so we can skip this snapshot
-                    # since it doesn't have missing intervals by definition
-                    continue
-                snapshot_end_date = existing_interval_end
+
+        existing_interval_end = interval_end_per_model.get(snapshot.name)
+        if existing_interval_end:
+            if to_timestamp(snapshot_start_date) >= existing_interval_end:
+                # The start exceeds the provided interval end, so we can skip this snapshot
+                # since it doesn't have missing intervals by definition
+                continue
+            snapshot_end_date = existing_interval_end
 
         missing_interval_end_date = snapshot_end_date
         node_end_date = snapshot.node.end

tests/core/test_integration.py

@@ -4572,6 +4572,33 @@ def test_restatement_of_full_model_with_start(init_and_plan_context: t.Callable)
     assert waiter_by_day_interval == (to_timestamp("2023-01-07"), to_timestamp("2023-01-08"))
 
 
+@time_machine.travel("2023-01-08 15:00:00 UTC")
+def test_restatement_shouldnt_backfill_beyond_prod_intervals(init_and_plan_context: t.Callable):
+    context, _ = init_and_plan_context("examples/sushi")
+
+    model = context.get_model("sushi.top_waiters")
+    context.upsert_model(SqlModel.parse_obj({**model.dict(), "cron": "@hourly"}))
+
+    context.plan("prod", auto_apply=True, no_prompts=True, skip_tests=True)
+    context.run()
+
+    with time_machine.travel("2023-01-09 02:00:00 UTC"):
+        # It's time to backfill the waiter_revenue_by_day model but it hasn't run yet
+        restatement_plan = context.plan(
+            restate_models=["sushi.waiter_revenue_by_day"],
+            no_prompts=True,
+            skip_tests=True,
+        )
+        intervals_by_id = {i.snapshot_id: i for i in restatement_plan.missing_intervals}
+        # Make sure the intervals don't go beyond the prod intervals
+        assert intervals_by_id[context.get_snapshot("sushi.top_waiters").snapshot_id].intervals[-1][
+            1
+        ] == to_timestamp("2023-01-08 15:00:00 UTC")
+        assert intervals_by_id[
+            context.get_snapshot("sushi.waiter_revenue_by_day").snapshot_id
+        ].intervals[-1][1] == to_timestamp("2023-01-08 00:00:00 UTC")
+
+
 def initial_add(context: Context, environment: str):
     assert not context.state_reader.get_environment(environment)