test/aaa_profiling/test_orm.py

from sqlalchemy import ForeignKey
from sqlalchemy import inspect
from sqlalchemy import Integer
from sqlalchemy import String
from sqlalchemy import testing
from sqlalchemy.orm import Bundle
from sqlalchemy.orm import configure_mappers
from sqlalchemy.orm import defaultload
from sqlalchemy.orm import defer
from sqlalchemy.orm import joinedload
from sqlalchemy.orm import Load
from sqlalchemy.orm import mapper
from sqlalchemy.orm import relationship
from sqlalchemy.orm import selectinload
from sqlalchemy.orm import Session
from sqlalchemy.orm import sessionmaker
from sqlalchemy.testing import fixtures
from sqlalchemy.testing import profiling
from sqlalchemy.testing.schema import Column
from sqlalchemy.testing.schema import Table


class MergeTest(fixtures.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        Table(
            "parent",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("data", String(20)),
        )
        Table(
            "child",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("data", String(20)),
            Column(
                "parent_id", Integer, ForeignKey("parent.id"), nullable=False
            ),
        )

    @classmethod
    def setup_classes(cls):
        class Parent(cls.Basic):
            pass

        class Child(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        Child, Parent, parent, child = (
            cls.classes.Child,
            cls.classes.Parent,
            cls.tables.parent,
            cls.tables.child,
        )

        mapper(
            Parent,
            parent,
            properties={"children": relationship(Child, backref="parent")},
        )
        mapper(Child, child)

    @classmethod
    def insert_data(cls):
        parent, child = cls.tables.parent, cls.tables.child

        parent.insert().execute({"id": 1, "data": "p1"})
        child.insert().execute({"id": 1, "data": "p1c1", "parent_id": 1})

    def test_merge_no_load(self):
        Parent = self.classes.Parent

        sess = sessionmaker()()
        sess2 = sessionmaker()()
        p1 = sess.query(Parent).get(1)
        p1.children

        # down from 185 on this this is a small slice of a usually
        # bigger operation so using a small variance

        @profiling.function_call_count(variance=0.10)
        def go1():
            return sess2.merge(p1, load=False)

        p2 = go1()

        # third call, merge object already present. almost no calls.

        @profiling.function_call_count(variance=0.10)
        def go2():
            return sess2.merge(p2, load=False)

        go2()

    def test_merge_load(self):
        Parent = self.classes.Parent

        sess = sessionmaker()()
        sess2 = sessionmaker()()
        p1 = sess.query(Parent).get(1)
        p1.children

        # preloading of collection took this down from 1728 to 1192
        # using sqlite3 the C extension took it back up to approx. 1257
        # (py2.6)

        @profiling.function_call_count()
        def go():
            sess2.merge(p1)

        go()

        # one more time, count the SQL

        def go2():
            sess2.merge(p1)

        sess2 = sessionmaker(testing.db)()
        self.assert_sql_count(testing.db, go2, 2)


class LoadManyToOneFromIdentityTest(fixtures.MappedTest):

    """test overhead associated with many-to-one fetches.

    Prior to the refactor of LoadLazyAttribute and
    query._get(), the load from identity map took 2x
    as many calls (65K calls here instead of around 33K)
    to load 1000 related objects from the identity map.

    """

    @classmethod
    def define_tables(cls, metadata):
        Table(
            "parent",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("data", String(20)),
            Column("child_id", Integer, ForeignKey("child.id")),
        )

        Table(
            "child",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("data", String(20)),
        )

    @classmethod
    def setup_classes(cls):
        class Parent(cls.Basic):
            pass

        class Child(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        Child, Parent, parent, child = (
            cls.classes.Child,
            cls.classes.Parent,
            cls.tables.parent,
            cls.tables.child,
        )

        mapper(Parent, parent, properties={"child": relationship(Child)})
        mapper(Child, child)

    @classmethod
    def insert_data(cls):
        parent, child = cls.tables.parent, cls.tables.child

        child.insert().execute(
            [{"id": i, "data": "c%d" % i} for i in range(1, 251)]
        )
        parent.insert().execute(
            [
                {
                    "id": i,
                    "data": "p%dc%d" % (i, (i % 250) + 1),
                    "child_id": (i % 250) + 1,
                }
                for i in range(1, 1000)
            ]
        )

    def test_many_to_one_load_no_identity(self):
        Parent = self.classes.Parent

        sess = Session()
        parents = sess.query(Parent).all()

        @profiling.function_call_count(variance=0.2)
        def go():
            for p in parents:
                p.child

        go()

    def test_many_to_one_load_identity(self):
        Parent, Child = self.classes.Parent, self.classes.Child

        sess = Session()
        parents = sess.query(Parent).all()
        children = sess.query(Child).all()
        children  # strong reference

        @profiling.function_call_count()
        def go():
            for p in parents:
                p.child

        go()


class MergeBackrefsTest(fixtures.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        Table(
            "a",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("c_id", Integer, ForeignKey("c.id")),
        )
        Table(
            "b",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("a_id", Integer, ForeignKey("a.id")),
        )
        Table("c", metadata, Column("id", Integer, primary_key=True))
        Table(
            "d",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("a_id", Integer, ForeignKey("a.id")),
        )

    @classmethod
    def setup_classes(cls):
        class A(cls.Basic):
            pass

        class B(cls.Basic):
            pass

        class C(cls.Basic):
            pass

        class D(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        A, B, C, D = cls.classes.A, cls.classes.B, cls.classes.C, cls.classes.D
        a, b, c, d = cls.tables.a, cls.tables.b, cls.tables.c, cls.tables.d
        mapper(
            A,
            a,
            properties={
                "bs": relationship(B, backref="a"),
                "c": relationship(C, backref="as"),
                "ds": relationship(D, backref="a"),
            },
        )
        mapper(B, b)
        mapper(C, c)
        mapper(D, d)

    @classmethod
    def insert_data(cls):
        A, B, C, D = cls.classes.A, cls.classes.B, cls.classes.C, cls.classes.D
        s = Session()
        s.add_all(
            [
                A(
                    id=i,
                    bs=[B(id=(i * 5) + j) for j in range(1, 5)],
                    c=C(id=i),
                    ds=[D(id=(i * 5) + j) for j in range(1, 5)],
                )
                for i in range(1, 5)
            ]
        )
        s.commit()

    @profiling.function_call_count(variance=0.10)
    def test_merge_pending_with_all_pks(self):
        A, B, C, D = (
            self.classes.A,
            self.classes.B,
            self.classes.C,
            self.classes.D,
        )
        s = Session()
        for a in [
            A(
                id=i,
                bs=[B(id=(i * 5) + j) for j in range(1, 5)],
                c=C(id=i),
                ds=[D(id=(i * 5) + j) for j in range(1, 5)],
            )
            for i in range(1, 5)
        ]:
            s.merge(a)


class DeferOptionsTest(fixtures.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        Table(
            "a",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("x", String(5)),
            Column("y", String(5)),
            Column("z", String(5)),
            Column("q", String(5)),
            Column("p", String(5)),
            Column("r", String(5)),
        )

    @classmethod
    def setup_classes(cls):
        class A(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        A = cls.classes.A
        a = cls.tables.a
        mapper(A, a)

    @classmethod
    def insert_data(cls):
        A = cls.classes.A
        s = Session()
        s.add_all(
            [
                A(
                    id=i,
                    **dict(
                        (letter, "%s%d" % (letter, i))
                        for letter in ["x", "y", "z", "p", "q", "r"]
                    )
                )
                for i in range(1, 1001)
            ]
        )
        s.commit()

    @profiling.function_call_count(variance=0.10)
    def test_baseline(self):
        # as of [ticket:2778], this is at 39025
        A = self.classes.A
        s = Session()
        s.query(A).all()

    @profiling.function_call_count(variance=0.10)
    def test_defer_many_cols(self):
        # with [ticket:2778], this goes from 50805 to 32817,
        # as it should be fewer function calls than the baseline
        A = self.classes.A
        s = Session()
        s.query(A).options(
            *[defer(letter) for letter in ["x", "y", "z", "p", "q", "r"]]
        ).all()


class AttributeOverheadTest(fixtures.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        Table(
            "parent",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("data", String(20)),
        )
        Table(
            "child",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("data", String(20)),
            Column(
                "parent_id", Integer, ForeignKey("parent.id"), nullable=False
            ),
        )

    @classmethod
    def setup_classes(cls):
        class Parent(cls.Basic):
            pass

        class Child(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        Child, Parent, parent, child = (
            cls.classes.Child,
            cls.classes.Parent,
            cls.tables.parent,
            cls.tables.child,
        )

        mapper(
            Parent,
            parent,
            properties={"children": relationship(Child, backref="parent")},
        )
        mapper(Child, child)

    def test_attribute_set(self):
        Parent, Child = self.classes.Parent, self.classes.Child
        p1 = Parent()
        c1 = Child()

        @profiling.function_call_count()
        def go():
            for i in range(30):
                c1.parent = p1
                c1.parent = None
                c1.parent = p1
                del c1.parent

        go()

    def test_collection_append_remove(self):
        Parent, Child = self.classes.Parent, self.classes.Child
        p1 = Parent()
        children = [Child() for i in range(100)]

        @profiling.function_call_count()
        def go():
            for child in children:
                p1.children.append(child)
            for child in children:
                p1.children.remove(child)

        go()


class SessionTest(fixtures.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        Table(
            "parent",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("data", String(20)),
        )
        Table(
            "child",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("data", String(20)),
            Column(
                "parent_id", Integer, ForeignKey("parent.id"), nullable=False
            ),
        )

    @classmethod
    def setup_classes(cls):
        class Parent(cls.Basic):
            pass

        class Child(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        Child, Parent, parent, child = (
            cls.classes.Child,
            cls.classes.Parent,
            cls.tables.parent,
            cls.tables.child,
        )

        mapper(
            Parent,
            parent,
            properties={"children": relationship(Child, backref="parent")},
        )
        mapper(Child, child)

    def test_expire_lots(self):
        Parent, Child = self.classes.Parent, self.classes.Child
        obj = [
            Parent(children=[Child() for j in range(10)]) for i in range(10)
        ]

        sess = Session()
        sess.add_all(obj)
        sess.flush()

        @profiling.function_call_count()
        def go():
            sess.expire_all()

        go()


class QueryTest(fixtures.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        Table(
            "parent",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("data1", String(20)),
            Column("data2", String(20)),
            Column("data3", String(20)),
            Column("data4", String(20)),
        )

    @classmethod
    def setup_classes(cls):
        class Parent(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        Parent = cls.classes.Parent
        parent = cls.tables.parent

        mapper(Parent, parent)

    def _fixture(self):
        Parent = self.classes.Parent
        sess = Session()
        sess.add_all(
            [
                Parent(data1="d1", data2="d2", data3="d3", data4="d4")
                for i in range(10)
            ]
        )
        sess.commit()
        sess.close()

    def test_query_cols(self):
        Parent = self.classes.Parent
        self._fixture()
        sess = Session()

        @profiling.function_call_count()
        def go():
            for i in range(10):
                q = sess.query(
                    Parent.data1, Parent.data2, Parent.data3, Parent.data4
                )

                q.all()

        go()


class SelectInEagerLoadTest(fixtures.MappedTest):
    """basic test for selectin() loading, which uses a baked query.

    if the baked query starts spoiling due to some bug in cache keys,
    this callcount blows up.

    """

    @classmethod
    def define_tables(cls, metadata):

        Table(
            "a",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("x", Integer),
            Column("y", Integer),
        )
        Table(
            "b",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("a_id", ForeignKey("a.id")),
            Column("x", Integer),
            Column("y", Integer),
        )
        Table(
            "c",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("b_id", ForeignKey("b.id")),
            Column("x", Integer),
            Column("y", Integer),
        )

    @classmethod
    def setup_classes(cls):
        class A(cls.Basic):
            pass

        class B(cls.Basic):
            pass

        class C(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        A, B, C = cls.classes("A", "B", "C")
        a, b, c = cls.tables("a", "b", "c")

        mapper(A, a, properties={"bs": relationship(B)})
        mapper(B, b, properties={"cs": relationship(C)})
        mapper(C, c)

    @classmethod
    def insert_data(cls):
        A, B, C = cls.classes("A", "B", "C")
        s = Session()
        s.add(A(bs=[B(cs=[C()]), B(cs=[C()])]))
        s.commit()

    def test_round_trip_results(self):
        A, B, C = self.classes("A", "B", "C")

        sess = Session()

        q = sess.query(A).options(selectinload(A.bs).selectinload(B.cs))

        @profiling.function_call_count()
        def go():
            for i in range(100):
                obj = q.all()
                list(obj)
                sess.close()

        go()


class JoinedEagerLoadTest(fixtures.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        def make_some_columns():
            return [Column("c%d" % i, Integer) for i in range(10)]

        Table(
            "a",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            *make_some_columns()
        )
        Table(
            "b",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("a_id", ForeignKey("a.id")),
            *make_some_columns()
        )
        Table(
            "c",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("b_id", ForeignKey("b.id")),
            *make_some_columns()
        )
        Table(
            "d",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("c_id", ForeignKey("c.id")),
            *make_some_columns()
        )
        Table(
            "e",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("a_id", ForeignKey("a.id")),
            *make_some_columns()
        )
        Table(
            "f",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("e_id", ForeignKey("e.id")),
            *make_some_columns()
        )
        Table(
            "g",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("e_id", ForeignKey("e.id")),
            *make_some_columns()
        )

    @classmethod
    def setup_classes(cls):
        class A(cls.Basic):
            pass

        class B(cls.Basic):
            pass

        class C(cls.Basic):
            pass

        class D(cls.Basic):
            pass

        class E(cls.Basic):
            pass

        class F(cls.Basic):
            pass

        class G(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        A, B, C, D, E, F, G = cls.classes("A", "B", "C", "D", "E", "F", "G")
        a, b, c, d, e, f, g = cls.tables("a", "b", "c", "d", "e", "f", "g")

        mapper(A, a, properties={"bs": relationship(B), "es": relationship(E)})
        mapper(B, b, properties={"cs": relationship(C)})
        mapper(C, c, properties={"ds": relationship(D)})
        mapper(D, d)
        mapper(E, e, properties={"fs": relationship(F), "gs": relationship(G)})
        mapper(F, f)
        mapper(G, g)

    @classmethod
    def insert_data(cls):
        A, B, C, D, E, F, G = cls.classes("A", "B", "C", "D", "E", "F", "G")
        s = Session()
        s.add(
            A(
                bs=[B(cs=[C(ds=[D()])]), B(cs=[C()])],
                es=[E(fs=[F()], gs=[G()])],
            )
        )
        s.commit()

    def test_build_query(self):
        A, B, C, D, E, F, G = self.classes("A", "B", "C", "D", "E", "F", "G")

        sess = Session()

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q = sess.query(A).options(
                    joinedload(A.bs).joinedload(B.cs).joinedload(C.ds),
                    joinedload(A.es).joinedload(E.fs),
                    defaultload(A.es).joinedload(E.gs),
                )
                q._compile_context()

        go()

    def test_fetch_results(self):
        A, B, C, D, E, F, G = self.classes("A", "B", "C", "D", "E", "F", "G")

        sess = Session()

        q = sess.query(A).options(
            joinedload(A.bs).joinedload(B.cs).joinedload(C.ds),
            joinedload(A.es).joinedload(E.fs),
            defaultload(A.es).joinedload(E.gs),
        )

        context = q._compile_context()

        @profiling.function_call_count()
        def go():
            for i in range(100):
                obj = q._execute_and_instances(context)
                list(obj)
                sess.close()

        go()


class BranchedOptionTest(fixtures.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        def make_some_columns():
            return [Column("c%d" % i, Integer) for i in range(2)]

        Table(
            "a",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            *make_some_columns()
        )
        Table(
            "b",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("a_id", ForeignKey("a.id")),
            *make_some_columns()
        )
        Table(
            "c",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("b_id", ForeignKey("b.id")),
            *make_some_columns()
        )
        Table(
            "d",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("b_id", ForeignKey("b.id")),
            *make_some_columns()
        )
        Table(
            "e",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("b_id", ForeignKey("b.id")),
            *make_some_columns()
        )
        Table(
            "f",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("b_id", ForeignKey("b.id")),
            *make_some_columns()
        )
        Table(
            "g",
            metadata,
            Column(
                "id", Integer, primary_key=True, test_needs_autoincrement=True
            ),
            Column("a_id", ForeignKey("a.id")),
            *make_some_columns()
        )

    @classmethod
    def setup_classes(cls):
        class A(cls.Basic):
            pass

        class B(cls.Basic):
            pass

        class C(cls.Basic):
            pass

        class D(cls.Basic):
            pass

        class E(cls.Basic):
            pass

        class F(cls.Basic):
            pass

        class G(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        A, B, C, D, E, F, G = cls.classes("A", "B", "C", "D", "E", "F", "G")
        a, b, c, d, e, f, g = cls.tables("a", "b", "c", "d", "e", "f", "g")

        mapper(A, a, properties={"bs": relationship(B), "gs": relationship(G)})
        mapper(
            B,
            b,
            properties={
                "cs": relationship(C),
                "ds": relationship(D),
                "es": relationship(E),
                "fs": relationship(F),
            },
        )
        mapper(C, c)
        mapper(D, d)
        mapper(E, e)
        mapper(F, f)
        mapper(G, g)

        configure_mappers()

    def test_generate_cache_key_unbound_branching(self):
        A, B, C, D, E, F, G = self.classes("A", "B", "C", "D", "E", "F", "G")

        base = joinedload(A.bs)
        opts = [
            base.joinedload(B.cs),
            base.joinedload(B.ds),
            base.joinedload(B.es),
            base.joinedload(B.fs),
        ]

        cache_path = inspect(A)._path_registry

        @profiling.function_call_count()
        def go():
            for opt in opts:
                opt._generate_cache_key(cache_path)

        go()

    def test_generate_cache_key_bound_branching(self):
        A, B, C, D, E, F, G = self.classes("A", "B", "C", "D", "E", "F", "G")

        base = Load(A).joinedload(A.bs)
        opts = [
            base.joinedload(B.cs),
            base.joinedload(B.ds),
            base.joinedload(B.es),
            base.joinedload(B.fs),
        ]

        cache_path = inspect(A)._path_registry

        @profiling.function_call_count()
        def go():
            for opt in opts:
                opt._generate_cache_key(cache_path)

        go()

    def test_query_opts_unbound_branching(self):
        A, B, C, D, E, F, G = self.classes("A", "B", "C", "D", "E", "F", "G")

        base = joinedload(A.bs)
        opts = [
            base.joinedload(B.cs),
            base.joinedload(B.ds),
            base.joinedload(B.es),
            base.joinedload(B.fs),
        ]

        q = Session().query(A)

        @profiling.function_call_count()
        def go():
            q.options(*opts)

        go()

    def test_query_opts_key_bound_branching(self):
        A, B, C, D, E, F, G = self.classes("A", "B", "C", "D", "E", "F", "G")

        base = Load(A).joinedload(A.bs)
        opts = [
            base.joinedload(B.cs),
            base.joinedload(B.ds),
            base.joinedload(B.es),
            base.joinedload(B.fs),
        ]

        q = Session().query(A)

        @profiling.function_call_count()
        def go():
            q.options(*opts)

        go()


class AnnotatedOverheadTest(fixtures.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        Table(
            "a",
            metadata,
            Column("id", Integer, primary_key=True),
            Column("data", String(50)),
        )

    @classmethod
    def setup_classes(cls):
        class A(cls.Basic):
            pass

    @classmethod
    def setup_mappers(cls):
        A = cls.classes.A
        a = cls.tables.a

        mapper(A, a)

    @classmethod
    def insert_data(cls):
        A = cls.classes.A
        s = Session()
        s.add_all([A(data="asdf") for i in range(5)])
        s.commit()

    def test_no_bundle(self):
        A = self.classes.A
        s = Session()

        q = s.query(A).select_from(A)

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q.all()

        go()

    def test_no_entity_wo_annotations(self):
        A = self.classes.A
        a = self.tables.a
        s = Session()

        q = s.query(a.c.data).select_from(A)

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q.all()

        go()

    def test_no_entity_w_annotations(self):
        A = self.classes.A
        s = Session()
        q = s.query(A.data).select_from(A)

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q.all()

        go()

    def test_entity_w_annotations(self):
        A = self.classes.A
        s = Session()
        q = s.query(A, A.data).select_from(A)

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q.all()

        go()

    def test_entity_wo_annotations(self):
        A = self.classes.A
        a = self.tables.a
        s = Session()
        q = s.query(A, a.c.data).select_from(A)

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q.all()

        go()

    def test_no_bundle_wo_annotations(self):
        A = self.classes.A
        a = self.tables.a
        s = Session()
        q = s.query(a.c.data, A).select_from(A)

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q.all()

        go()

    def test_no_bundle_w_annotations(self):
        A = self.classes.A
        s = Session()
        q = s.query(A.data, A).select_from(A)

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q.all()

        go()

    def test_bundle_wo_annotation(self):
        A = self.classes.A
        a = self.tables.a
        s = Session()
        q = s.query(Bundle("ASdf", a.c.data), A).select_from(A)

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q.all()

        go()

    def test_bundle_w_annotation(self):
        A = self.classes.A
        s = Session()
        q = s.query(Bundle("ASdf", A.data), A).select_from(A)

        @profiling.function_call_count()
        def go():
            for i in range(100):
                q.all()

        go()