Extend unit test to check for ingest_date in WHERE clause

python/lsst/daf/butler/tests/butler_queries.py

@@ -383,6 +383,7 @@ def test_general_query(self) -> None:
 
     def test_query_ingest_date(self) -> None:
         """Test general query returning ingest_date field."""
+        before_ingest = astropy.time.Time.now()
         butler = self.make_butler("base.yaml", "datasets.yaml")
         dimensions = DimensionGroup(butler.dimensions, ["detector", "physical_filter"])
 
@@ -395,6 +396,20 @@ def test_query_ingest_date(self) -> None:
             for row in rows:
                 self.assertIsInstance(row["flat.ingest_date"], astropy.time.Time)
 
+        # Check that WHERE accepts astropy time
+        with butler._query() as query:
+            query = query.join_dataset_search("flat", "imported_g")
+            query1 = query.where("flat.ingest_date < before_ingest", bind={"before_ingest": before_ingest})
+            rows = list(query1.general(dimensions))
+            self.assertEqual(len(rows), 0)
+            query1 = query.where("flat.ingest_date >= before_ingest", bind={"before_ingest": before_ingest})
+            rows = list(query1.general(dimensions))
+            self.assertEqual(len(rows), 3)
+            # Same with a time in string literal.
+            query1 = query.where(f"flat.ingest_date < T'mjd/{before_ingest.tai.mjd}'")
+            rows = list(query1.general(dimensions))
+            self.assertEqual(len(rows), 0)
+
     def test_implied_union_record_query(self) -> None:
         """Test queries for a dimension ('band') that uses "implied union"
         storage, in which its values are the union of the values for it in a