fix: Convert datetime object to a SQL expression string

superset/connectors/sqla/models.py

@@ -330,21 +330,6 @@ def get_sqla_col(
     def datasource(self) -> RelationshipProperty:
         return self.table
 
-    def get_time_filter(
-        self,
-        start_dttm: Optional[DateTime] = None,
-        end_dttm: Optional[DateTime] = None,
-        label: Optional[str] = "__time",
-        template_processor: Optional[BaseTemplateProcessor] = None,
-    ) -> ColumnElement:
-        col = self.get_sqla_col(label=label, template_processor=template_processor)
-        l = []
-        if start_dttm:
-            l.append(col >= self.table.text(self.dttm_sql_literal(start_dttm)))
-        if end_dttm:
-            l.append(col < self.table.text(self.dttm_sql_literal(end_dttm)))
-        return and_(*l)
-
     def get_timestamp_expression(
         self,
         time_grain: Optional[str],
@@ -379,36 +364,6 @@ def get_timestamp_expression(
         time_expr = self.db_engine_spec.get_timestamp_expr(col, pdf, time_grain)
         return self.table.make_sqla_column_compatible(time_expr, label)
 
-    def dttm_sql_literal(self, dttm: DateTime) -> str:
-        """Convert datetime object to a SQL expression string"""
-        sql = (
-            self.db_engine_spec.convert_dttm(self.type, dttm, db_extra=self.db_extra)
-            if self.type
-            else None
-        )
-
-        if sql:
-            return sql
-
-        tf = self.python_date_format
-
-        # Fallback to the default format (if defined).
-        if not tf:
-            tf = self.db_extra.get("python_date_format_by_column_name", {}).get(
-                self.column_name
-            )
-
-        if tf:
-            if tf in ["epoch_ms", "epoch_s"]:
-                seconds_since_epoch = int(dttm.timestamp())
-                if tf == "epoch_s":
-                    return str(seconds_since_epoch)
-                return str(seconds_since_epoch * 1000)
-            return f"'{dttm.strftime(tf)}'"
-
-        # TODO(john-bodley): SIP-15 will explicitly require a type conversion.
-        return f"""'{dttm.strftime("%Y-%m-%d %H:%M:%S.%f")}'"""
-
     @property
     def data(self) -> Dict[str, Any]:
         attrs = (

superset/models/helpers.py

@@ -1269,17 +1269,12 @@ def _get_top_groups(
 
         return or_(*groups)
 
-    def dttm_sql_literal(
-        self,
-        col: "TableColumn",
-        dttm: sa.DateTime,
-        col_type: Optional[str],
-    ) -> str:
+    def dttm_sql_literal(self, dttm: datetime, col: "TableColumn") -> str:
         """Convert datetime object to a SQL expression string"""
 
         sql = (
-            self.db_engine_spec.convert_dttm(col_type, dttm, db_extra=None)
-            if col_type
+            self.db_engine_spec.convert_dttm(col.type, dttm, db_extra=self.db_extra)
+            if col.type
             else None
         )
 
@@ -1330,14 +1325,14 @@ def get_time_filter(  # pylint: disable=too-many-arguments
             l.append(
                 col
                 >= self.db_engine_spec.get_text_clause(
-                    self.dttm_sql_literal(time_col, start_dttm, time_col.type)
+                    self.dttm_sql_literal(start_dttm, time_col)
                 )
             )
         if end_dttm:
             l.append(
                 col
                 < self.db_engine_spec.get_text_clause(
-                    self.dttm_sql_literal(time_col, end_dttm, time_col.type)
+                    self.dttm_sql_literal(end_dttm, time_col)
                 )
             )
         return and_(*l)

tests/unit_tests/models/core_test.py

@@ -16,12 +16,17 @@
 # under the License.
 
 # pylint: disable=import-outside-toplevel
-
+import json
+from datetime import datetime
 from typing import List, Optional
 
+import pytest
 from pytest_mock import MockFixture
 from sqlalchemy.engine.reflection import Inspector
 
+from superset.connectors.sqla.models import SqlaTable, TableColumn
+from superset.models.core import Database
+
 
 def test_get_metrics(mocker: MockFixture) -> None:
     """
@@ -143,3 +148,62 @@ class OldDBEngineSpec(BaseEngineSpec):
         ).db_engine_spec
         == OldDBEngineSpec
     )
+
+
+@pytest.mark.parametrize(
+    "dttm,col,database,result",
+    [
+        (
+            datetime(2023, 1, 1, 1, 23, 45, 600000),
+            TableColumn(python_date_format="epoch_s"),
+            Database(),
+            "1672536225",
+        ),
+        (
+            datetime(2023, 1, 1, 1, 23, 45, 600000),
+            TableColumn(python_date_format="epoch_ms"),
+            Database(),
+            "1672536225000",
+        ),
+        (
+            datetime(2023, 1, 1, 1, 23, 45, 600000),
+            TableColumn(python_date_format="%Y-%m-%d"),
+            Database(),
+            "'2023-01-01'",
+        ),
+        (
+            datetime(2023, 1, 1, 1, 23, 45, 600000),
+            TableColumn(column_name="ds"),
+            Database(
+                extra=json.dumps(
+                    {
+                        "python_date_format_by_column_name": {
+                            "ds": "%Y-%m-%d",
+                        },
+                    },
+                ),
+                sqlalchemy_uri="foo://",
+            ),
+            "'2023-01-01'",
+        ),
+        (
+            datetime(2023, 1, 1, 1, 23, 45, 600000),
+            TableColumn(),
+            Database(sqlalchemy_uri="foo://"),
+            "'2023-01-01 01:23:45.600000'",
+        ),
+        (
+            datetime(2023, 1, 1, 1, 23, 45, 600000),
+            TableColumn(type="TimeStamp"),
+            Database(sqlalchemy_uri="trino://"),
+            "TIMESTAMP '2023-01-01 01:23:45.600000'",
+        ),
+    ],
+)
+def test_dttm_sql_literal(
+    dttm: datetime,
+    col: TableColumn,
+    database: Database,
+    result: str,
+) -> None:
+    assert SqlaTable(database=database).dttm_sql_literal(dttm, col) == result

tox.ini

@@ -18,7 +18,7 @@
 # Remember to start celery workers to run celery tests, e.g.
 # celery --app=superset.tasks.celery_app:app worker -Ofair -c 2
 [testenv]
-basepython = python3.8
+basepython = python3.10
 ignore_basepython_conflict = true
 commands =
     superset db upgrade