Fix: Always treat forward-only models as non-deployable

sqlmesh/core/scheduler.py

@@ -116,12 +116,9 @@ def merged_missing_intervals(
         validate_date_range(start, end)
 
         snapshots: t.Collection[Snapshot] = self.snapshot_per_version.values()
-        if selected_snapshots is not None:
-            snapshots = [s for s in snapshots if s.name in selected_snapshots]
-
         self.state_sync.refresh_snapshot_intervals(snapshots)
 
-        return compute_interval_params(
+        snapshots_to_intervals = compute_interval_params(
             snapshots,
             start=start or earliest_start_date(snapshots),
             end=end or now(),
@@ -132,6 +129,13 @@ def merged_missing_intervals(
             ignore_cron=ignore_cron,
             end_bounded=end_bounded,
         )
+        # Filtering snapshots after computing missing intervals because we need all snapshots in order
+        # to correctly infer start dates.
+        if selected_snapshots is not None:
+            snapshots_to_intervals = {
+                s: i for s, i in snapshots_to_intervals.items() if s.name in selected_snapshots
+            }
+        return snapshots_to_intervals
 
     def evaluate(
         self,

sqlmesh/core/snapshot/definition.py

@@ -1340,13 +1340,7 @@ def _visit(node: SnapshotId, deployable: bool = True) -> None:
 
             if deployable and node in snapshots:
                 snapshot = snapshots[node]
-                # Capture uncategorized snapshot which represents a forward-only model.
-                is_uncategorized_forward_only_model = (
-                    snapshot.change_category is None
-                    and snapshot.previous_versions
-                    and snapshot.is_model
-                    and snapshot.model.forward_only
-                )
+                is_forward_only_model = snapshot.is_model and snapshot.model.forward_only
 
                 is_valid_start = (
                     snapshot.is_valid_start(
@@ -1359,7 +1353,7 @@ def _visit(node: SnapshotId, deployable: bool = True) -> None:
                 if (
                     snapshot.is_forward_only
                     or snapshot.is_indirect_non_breaking
-                    or is_uncategorized_forward_only_model
+                    or is_forward_only_model
                     or not is_valid_start
                 ):
                     # FORWARD_ONLY and INDIRECT_NON_BREAKING snapshots are not deployable by nature.
@@ -1372,8 +1366,7 @@ def _visit(node: SnapshotId, deployable: bool = True) -> None:
                 else:
                     this_deployable = True
                 children_deployable = is_valid_start and not (
-                    snapshot.is_paused
-                    and (snapshot.is_forward_only or is_uncategorized_forward_only_model)
+                    snapshot.is_paused and (snapshot.is_forward_only or is_forward_only_model)
                 )
             else:
                 this_deployable, children_deployable = False, False

tests/core/test_integration.py

@@ -1774,6 +1774,72 @@ def test_new_forward_only_model_concurrent_versions(init_and_plan_context: t.Cal
     assert df.to_dict() == {"ds": {0: "2023-01-07"}, "b": {0: None}}
 
 
+@freeze_time("2023-01-08 15:00:00")
+def test_new_forward_only_model_same_dev_environment(init_and_plan_context: t.Callable):
+    context, plan = init_and_plan_context("examples/sushi")
+    context.apply(plan)
+
+    new_model_expr = d.parse(
+        """
+        MODEL (
+            name memory.sushi.new_model,
+            kind INCREMENTAL_BY_TIME_RANGE (
+                time_column ds,
+                forward_only TRUE,
+                on_destructive_change 'allow',
+            ),
+        );
+
+        SELECT '2023-01-07' AS ds, 1 AS a;
+        """
+    )
+    new_model = load_sql_based_model(new_model_expr)
+
+    # Add the first version of the model and apply it to dev.
+    context.upsert_model(new_model)
+    snapshot_a = context.get_snapshot(new_model.name)
+    plan_a = context.plan("dev", no_prompts=True)
+    snapshot_a = plan_a.snapshots[snapshot_a.snapshot_id]
+
+    assert snapshot_a.snapshot_id in plan_a.context_diff.new_snapshots
+    assert snapshot_a.snapshot_id in plan_a.context_diff.added
+    assert snapshot_a.change_category == SnapshotChangeCategory.BREAKING
+
+    context.apply(plan_a)
+
+    df = context.fetchdf("SELECT * FROM memory.sushi__dev.new_model")
+    assert df.to_dict() == {"ds": {0: "2023-01-07"}, "a": {0: 1}}
+
+    new_model_alt_expr = d.parse(
+        """
+        MODEL (
+            name memory.sushi.new_model,
+            kind INCREMENTAL_BY_TIME_RANGE (
+                time_column ds,
+                forward_only TRUE,
+                on_destructive_change 'allow',
+            ),
+        );
+
+        SELECT '2023-01-07' AS ds, 1 AS b;
+        """
+    )
+    new_model_alt = load_sql_based_model(new_model_alt_expr)
+
+    # Add the second version of the model and apply it to the same environment.
+    context.upsert_model(new_model_alt)
+    snapshot_b = context.get_snapshot(new_model_alt.name)
+
+    context.invalidate_environment("dev", sync=True)
+    plan_b = context.plan("dev", no_prompts=True)
+    snapshot_b = plan_b.snapshots[snapshot_b.snapshot_id]
+
+    context.apply(plan_b)
+
+    df = context.fetchdf("SELECT * FROM memory.sushi__dev.new_model").replace({np.nan: None})
+    assert df.to_dict() == {"ds": {0: "2023-01-07"}, "b": {0: 1}}
+
+
 def test_plan_twice_with_star_macro_yields_no_diff(tmp_path: Path):
     init_example_project(tmp_path, dialect="duckdb")
 
@@ -2564,7 +2630,7 @@ def get_default_catalog_and_non_tables(
     ) = get_default_catalog_and_non_tables(metadata, context.default_catalog)
     assert len(prod_views) == 13
     assert len(dev_views) == 0
-    assert len(user_default_tables) == 13
+    assert len(user_default_tables) == 16
     assert state_metadata.schemas == ["sqlmesh"]
     assert {x.sql() for x in state_metadata.qualified_tables}.issuperset(
         {
@@ -2583,7 +2649,7 @@ def get_default_catalog_and_non_tables(
     ) = get_default_catalog_and_non_tables(metadata, context.default_catalog)
     assert len(prod_views) == 13
     assert len(dev_views) == 13
-    assert len(user_default_tables) == 13
+    assert len(user_default_tables) == 16
     assert len(non_default_tables) == 0
     assert state_metadata.schemas == ["sqlmesh"]
     assert {x.sql() for x in state_metadata.qualified_tables}.issuperset(
@@ -2603,7 +2669,7 @@ def get_default_catalog_and_non_tables(
     ) = get_default_catalog_and_non_tables(metadata, context.default_catalog)
     assert len(prod_views) == 13
     assert len(dev_views) == 26
-    assert len(user_default_tables) == 13
+    assert len(user_default_tables) == 16
     assert len(non_default_tables) == 0
     assert state_metadata.schemas == ["sqlmesh"]
     assert {x.sql() for x in state_metadata.qualified_tables}.issuperset(
@@ -2624,7 +2690,7 @@ def get_default_catalog_and_non_tables(
     ) = get_default_catalog_and_non_tables(metadata, context.default_catalog)
     assert len(prod_views) == 13
     assert len(dev_views) == 13
-    assert len(user_default_tables) == 13
+    assert len(user_default_tables) == 16
     assert len(non_default_tables) == 0
     assert state_metadata.schemas == ["sqlmesh"]
     assert {x.sql() for x in state_metadata.qualified_tables}.issuperset(

tests/core/test_snapshot.py

@@ -1734,17 +1734,15 @@ def test_deployability_index_categorized_forward_only_model(make_snapshot):
     snapshot_b.parents = (snapshot_a.snapshot_id,)
     snapshot_b.categorize_as(SnapshotChangeCategory.METADATA)
 
-    # The fact that the model is forward only should be ignored if an actual category
-    # has been assigned.
     deployability_index = DeployabilityIndex.create(
         {s.snapshot_id: s for s in [snapshot_a, snapshot_b]}
     )
 
-    assert deployability_index.is_deployable(snapshot_a)
-    assert deployability_index.is_deployable(snapshot_b)
+    assert not deployability_index.is_deployable(snapshot_a)
+    assert not deployability_index.is_deployable(snapshot_b)
 
-    assert deployability_index.is_representative(snapshot_a)
-    assert deployability_index.is_representative(snapshot_b)
+    assert not deployability_index.is_representative(snapshot_a)
+    assert not deployability_index.is_representative(snapshot_b)
 
 
 def test_deployability_index_missing_parent(make_snapshot):

tests/integrations/jupyter/test_magics.py

@@ -291,7 +291,7 @@ def test_plan(
 
     # TODO: Should this be going to stdout? This is printing the status updates for when each batch finishes for
     # the models and how long it took
-    assert len(output.stdout.strip().split("\n")) == 22
+    assert len(output.stdout.strip().split("\n")) == 23
     assert not output.stderr
     assert len(output.outputs) == 4
     text_output = convert_all_html_output_to_text(output)