Revert "Add support for stacked sinks (#611)"

docs/pages/api-reference/decorators/sink.md

@@ -62,12 +62,6 @@ This means that the column denoted by the key is aliased to another column in th
 This is useful, for instance, when you want to rename columns while sinking them.
 </Expandable>
 
-<Expandable title="stacked" type='Optional[bool]' defaultVal="None">
-This indicates whether the sink is stacked on top of an existing sink. 
-If multiple sinks are added to the dataset, set this field to True
-for all sinks except the first one.
-</Expandable>
-
 <pre snippet="api-reference/sinks/sink#sink_decorator"
     status="success" message="Specifying options in sink decorator"
 >

docs/pages/concepts/sink.md

@@ -26,12 +26,4 @@ publishing changes to your Kafka.
 
 Fennel ships with data sinks to a couple of [common datastores](/api-reference/sink_connectors) 
 so that you can 'sink' from your Fennel datasets to your external datasets.
-Sinks to many other common data stores will be added soon.
-
-## Stacking Multiple Sinks
-Stacking two (or more) sinks on top of a dataset simply leads to the dataset
-getting sinked to all of them.
-
-<pre snippet="concepts/sink#stacked" status="success" 
-  message="Writing data to Snowflake and Kafka"
-></pre>
+Sinks to many other common data stores will be added soon.

fennel/CHANGELOG.md

@@ -1,8 +1,5 @@
 # Changelog
 
-## [1.5.59] - 2024-12-06
-- Add support for stacked sinks
-
 ## [1.5.58] - 2024-11-24
 - Allow min/max aggregation on date, datetime and decimal dtypes
 

fennel/connectors/connectors.py

@@ -252,7 +252,6 @@ def sink(
     since: Optional[datetime] = None,
     until: Optional[datetime] = None,
     env: Optional[Union[str, List[str]]] = None,
-    stacked: Optional[bool] = None,
 ) -> Callable[[T], Any]:
     if not isinstance(conn, DataConnector):
         if not isinstance(conn, DataSource):
@@ -353,7 +352,6 @@ def decorator(dataset_cls: T):
         conn.renames = renames
         conn.since = since
         conn.until = until
-        conn.stacked = stacked
         conn.envs = EnvSelector(env)
         connectors = getattr(dataset_cls, SINK_FIELD, [])
         connectors.append(conn)
@@ -823,7 +821,6 @@ class DataConnector:
     how: Optional[Literal["incremental", "recreate"] | SnapshotData] = None
     create: Optional[bool] = None
     renames: Optional[Dict[str, str]] = {}
-    stacked: Optional[bool] = None
 
     def identifier(self):
         raise NotImplementedError

fennel/connectors/test_connectors.py

@@ -680,14 +680,6 @@ class UserInfoDataset:
         cdc="debezium",
         env=["prod_new4"],
     )
-    @sink(
-        http_with_secret.path(
-            endpoint="/sink3", limit=100, headers={"Foo": "Bar"}
-        ),
-        cdc="debezium",
-        env=["prod_new4"],
-        stacked=True,
-    )
     @dataset
     class UserInfoDatasetDerived:
         user_id: int = field(key=True)
@@ -942,47 +934,9 @@ def create_user_transactions(cls, dataset: Dataset):
     sync_request = view._get_sync_request_proto(env="prod_new4")
     assert len(sync_request.datasets) == 2
     assert len(sync_request.sources) == 1
-    assert len(sync_request.sinks) == 2
+    assert len(sync_request.sinks) == 1
     assert len(sync_request.extdbs) == 2
 
-    sink_request = sync_request.sinks[1]
-    s = {
-        "table": {
-            "http_path": {
-                "db": {
-                    "name": "http_sink_with_secret",
-                    "http": {
-                        "host_secret": {
-                            "secret_arn": "arn:aws:secretsmanager:us-west-2:123456789012:secret:fennel-test-secret-1",
-                            "role_arn": "arn:aws:iam::123456789012:role/fennel-test-role",
-                            "path": ["http_host"],
-                        },
-                        "healthz": "/health",
-                        "ca_cert": {
-                            "secret_ref": {
-                                "secret_arn": "arn:aws:secretsmanager:us-west-2:123456789012:secret:fennel-test-secret-1",
-                                "role_arn": "arn:aws:iam::123456789012:role/fennel-test-role",
-                                "path": ["ca_cert"],
-                            },
-                        },
-                    },
-                },
-                "endpoint": "/sink",
-                "limit": 100,
-                "headers": {
-                    "Foo": "Bar",
-                },
-            },
-        },
-        "dataset": "UserInfoDatasetDerived",
-        "dsVersion": 1,
-        "cdc": "Debezium",
-    }
-    expected_sink_request = ParseDict(s, connector_proto.Sink())
-    assert sink_request == expected_sink_request, error_message(
-        sink_request, expected_sink_request
-    )
-
     sink_request = sync_request.sinks[0]
     s = {
         "table": {
@@ -1005,7 +959,7 @@ def create_user_transactions(cls, dataset: Dataset):
                         },
                     },
                 },
-                "endpoint": "/sink3",
+                "endpoint": "/sink",
                 "limit": 100,
                 "headers": {
                     "Foo": "Bar",
@@ -1015,7 +969,6 @@ def create_user_transactions(cls, dataset: Dataset):
         "dataset": "UserInfoDatasetDerived",
         "dsVersion": 1,
         "cdc": "Debezium",
-        "stacked": True,
     }
     expected_sink_request = ParseDict(s, connector_proto.Sink())
     assert sink_request == expected_sink_request, error_message(