feat(python): add to_list to async api (#1520)

PR fixes #1517

python/python/lancedb/query.py

@@ -1217,6 +1217,16 @@ class AsyncQueryBase(object):
             await batch_iter.read_all(), schema=batch_iter.schema
         )
 
+    async def to_list(self) -> List[dict]:
+        """
+        Execute the query and return the results as a list of dictionaries.
+
+        Each list entry is a dictionary with the selected column names as keys,
+        or all table columns if `select` is not called. The vector and the "_distance"
+        fields are returned whether or not they're explicitly selected.
+        """
+        return (await self.to_arrow()).to_pylist()
+
     async def to_pandas(self) -> "pd.DataFrame":
         """
         Execute the query and collect the results into a pandas DataFrame.

python/python/tests/test_query.py

@@ -354,3 +354,11 @@ async def test_query_camelcase_async(tmp_path):
 
     result = await table.query().select(["camelCase"]).to_arrow()
     assert result == pa.table({"camelCase": pa.array([1, 2])})
+
+
+@pytest.mark.asyncio
+async def test_query_to_list_async(table_async: AsyncTable):
+    list = await table_async.query().to_list()
+    assert len(list) == 2
+    assert list[0]["vector"] == [1, 2]
+    assert list[1]["vector"] == [3, 4]