mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-05-17 06:07:27 -04:00
Mike Bayer
c3f102c9fe
It's better, the majority of these changes look more readable to me. also found some docstrings that had formatting / quoting issues. Change-Id: I582a45fde3a5648b2f36bab96bad56881321899b
1315 lines
34 KiB
Python
1315 lines
34 KiB
Python
from sqlalchemy import and_
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from sqlalchemy import ForeignKey
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from sqlalchemy import Integer
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from sqlalchemy import join
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from sqlalchemy import String
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from sqlalchemy import testing
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from sqlalchemy.orm import aliased
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from sqlalchemy.orm import Bundle
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from sqlalchemy.orm import configure_mappers
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from sqlalchemy.orm import defaultload
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from sqlalchemy.orm import defer
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from sqlalchemy.orm import join as orm_join
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from sqlalchemy.orm import joinedload
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from sqlalchemy.orm import Load
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from sqlalchemy.orm import mapper
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from sqlalchemy.orm import relationship
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from sqlalchemy.orm import selectinload
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from sqlalchemy.orm import Session
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from sqlalchemy.orm import sessionmaker
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from sqlalchemy.testing import config
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from sqlalchemy.testing import fixtures
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from sqlalchemy.testing import profiling
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from sqlalchemy.testing.schema import Column
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from sqlalchemy.testing.schema import Table
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class NoCache(object):
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run_setup_bind = "each"
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@classmethod
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def setup_class(cls):
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super(NoCache, cls).setup_class()
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cls._cache = config.db._compiled_cache
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config.db._compiled_cache = None
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@classmethod
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def teardown_class(cls):
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config.db._compiled_cache = cls._cache
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super(NoCache, cls).teardown_class()
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class MergeTest(NoCache, fixtures.MappedTest):
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__requires__ = ("python_profiling_backend",)
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@classmethod
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def define_tables(cls, metadata):
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Table(
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"parent",
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metadata,
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Column(
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"id", Integer, primary_key=True, test_needs_autoincrement=True
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),
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Column("data", String(20)),
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)
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Table(
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"child",
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metadata,
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Column(
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"id", Integer, primary_key=True, test_needs_autoincrement=True
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),
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Column("data", String(20)),
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Column(
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"parent_id", Integer, ForeignKey("parent.id"), nullable=False
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),
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)
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@classmethod
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def setup_classes(cls):
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class Parent(cls.Basic):
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pass
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class Child(cls.Basic):
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pass
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@classmethod
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def setup_mappers(cls):
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Child, Parent, parent, child = (
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cls.classes.Child,
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cls.classes.Parent,
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cls.tables.parent,
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cls.tables.child,
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)
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mapper(
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Parent,
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parent,
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properties={"children": relationship(Child, backref="parent")},
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)
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mapper(Child, child)
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@classmethod
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def insert_data(cls, connection):
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parent, child = cls.tables.parent, cls.tables.child
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connection.execute(parent.insert(), {"id": 1, "data": "p1"})
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connection.execute(
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child.insert(), {"id": 1, "data": "p1c1", "parent_id": 1}
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)
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def test_merge_no_load(self):
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Parent = self.classes.Parent
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sess = sessionmaker()()
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sess2 = sessionmaker()()
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p1 = sess.query(Parent).get(1)
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p1.children
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# down from 185 on this this is a small slice of a usually
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# bigger operation so using a small variance
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sess2.transaction # autobegin
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@profiling.function_call_count(variance=0.20)
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def go1():
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return sess2.merge(p1, load=False)
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p2 = go1()
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# third call, merge object already present. almost no calls.
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sess2.transaction # autobegin
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@profiling.function_call_count(variance=0.10, warmup=1)
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def go2():
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return sess2.merge(p2, load=False)
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go2()
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def test_merge_load(self):
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Parent = self.classes.Parent
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sess = sessionmaker()()
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sess2 = sessionmaker()()
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p1 = sess.query(Parent).get(1)
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p1.children
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# preloading of collection took this down from 1728 to 1192
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# using sqlite3 the C extension took it back up to approx. 1257
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# (py2.6)
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sess2.transaction # autobegin
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@profiling.function_call_count(variance=0.10)
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def go():
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sess2.merge(p1)
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go()
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# one more time, count the SQL
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def go2():
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sess2.merge(p1)
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sess2 = sessionmaker(testing.db)()
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self.assert_sql_count(testing.db, go2, 2)
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class LoadManyToOneFromIdentityTest(NoCache, fixtures.MappedTest):
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"""test overhead associated with many-to-one fetches.
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Prior to the refactor of LoadLazyAttribute and
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query._get(), the load from identity map took 2x
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as many calls (65K calls here instead of around 33K)
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to load 1000 related objects from the identity map.
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"""
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__requires__ = ("python_profiling_backend",)
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@classmethod
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def define_tables(cls, metadata):
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Table(
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"parent",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("data", String(20)),
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Column("child_id", Integer, ForeignKey("child.id")),
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)
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Table(
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"child",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("data", String(20)),
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)
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@classmethod
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def setup_classes(cls):
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class Parent(cls.Basic):
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pass
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class Child(cls.Basic):
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pass
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@classmethod
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def setup_mappers(cls):
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Child, Parent, parent, child = (
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cls.classes.Child,
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cls.classes.Parent,
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cls.tables.parent,
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cls.tables.child,
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)
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mapper(Parent, parent, properties={"child": relationship(Child)})
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mapper(Child, child)
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@classmethod
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def insert_data(cls, connection):
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parent, child = cls.tables.parent, cls.tables.child
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connection.execute(
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child.insert(),
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[{"id": i, "data": "c%d" % i} for i in range(1, 251)],
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)
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connection.execute(
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parent.insert(),
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[
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{
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"id": i,
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"data": "p%dc%d" % (i, (i % 250) + 1),
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"child_id": (i % 250) + 1,
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}
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for i in range(1, 1000)
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],
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)
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def test_many_to_one_load_no_identity(self):
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Parent = self.classes.Parent
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sess = Session()
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parents = sess.query(Parent).all()
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@profiling.function_call_count(variance=0.2)
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def go():
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for p in parents:
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p.child
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go()
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def test_many_to_one_load_identity(self):
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Parent, Child = self.classes.Parent, self.classes.Child
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sess = Session()
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parents = sess.query(Parent).all()
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children = sess.query(Child).all()
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children # strong reference
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@profiling.function_call_count()
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def go():
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for p in parents:
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p.child
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go()
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class MergeBackrefsTest(NoCache, fixtures.MappedTest):
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__requires__ = ("python_profiling_backend",)
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@classmethod
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def define_tables(cls, metadata):
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Table(
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"a",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("c_id", Integer, ForeignKey("c.id")),
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)
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Table(
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"b",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("a_id", Integer, ForeignKey("a.id")),
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)
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Table("c", metadata, Column("id", Integer, primary_key=True))
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Table(
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"d",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("a_id", Integer, ForeignKey("a.id")),
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)
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@classmethod
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def setup_classes(cls):
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class A(cls.Basic):
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pass
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class B(cls.Basic):
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pass
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class C(cls.Basic):
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pass
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class D(cls.Basic):
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pass
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@classmethod
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def setup_mappers(cls):
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A, B, C, D = cls.classes.A, cls.classes.B, cls.classes.C, cls.classes.D
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a, b, c, d = cls.tables.a, cls.tables.b, cls.tables.c, cls.tables.d
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mapper(
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A,
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a,
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properties={
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"bs": relationship(B, backref="a"),
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"c": relationship(C, backref="as"),
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"ds": relationship(D, backref="a"),
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},
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)
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mapper(B, b)
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mapper(C, c)
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mapper(D, d)
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@classmethod
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def insert_data(cls, connection):
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A, B, C, D = cls.classes.A, cls.classes.B, cls.classes.C, cls.classes.D
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s = Session(connection)
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s.add_all(
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[
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A(
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id=i,
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bs=[B(id=(i * 5) + j) for j in range(1, 5)],
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c=C(id=i),
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ds=[D(id=(i * 5) + j) for j in range(1, 5)],
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)
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for i in range(1, 5)
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]
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)
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s.commit()
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@profiling.function_call_count(variance=0.10)
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def test_merge_pending_with_all_pks(self):
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A, B, C, D = (
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self.classes.A,
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self.classes.B,
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self.classes.C,
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self.classes.D,
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)
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s = Session()
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for a in [
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A(
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id=i,
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bs=[B(id=(i * 5) + j) for j in range(1, 5)],
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c=C(id=i),
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ds=[D(id=(i * 5) + j) for j in range(1, 5)],
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)
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for i in range(1, 5)
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]:
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s.merge(a)
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class DeferOptionsTest(NoCache, fixtures.MappedTest):
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__requires__ = ("python_profiling_backend",)
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@classmethod
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def define_tables(cls, metadata):
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Table(
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"a",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("x", String(5)),
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Column("y", String(5)),
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Column("z", String(5)),
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Column("q", String(5)),
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Column("p", String(5)),
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Column("r", String(5)),
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)
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@classmethod
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def setup_classes(cls):
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class A(cls.Basic):
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pass
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@classmethod
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def setup_mappers(cls):
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A = cls.classes.A
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a = cls.tables.a
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mapper(A, a)
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@classmethod
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def insert_data(cls, connection):
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A = cls.classes.A
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s = Session(connection)
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s.add_all(
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[
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A(
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id=i,
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**dict(
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(letter, "%s%d" % (letter, i))
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for letter in ["x", "y", "z", "p", "q", "r"]
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)
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)
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for i in range(1, 1001)
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]
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)
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s.commit()
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@profiling.function_call_count(variance=0.10)
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def test_baseline(self):
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# as of [ticket:2778], this is at 39025
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A = self.classes.A
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s = Session()
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s.query(A).all()
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@profiling.function_call_count(variance=0.10)
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def test_defer_many_cols(self):
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# with [ticket:2778], this goes from 50805 to 32817,
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# as it should be fewer function calls than the baseline
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A = self.classes.A
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s = Session()
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s.query(A).options(
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*[defer(letter) for letter in ["x", "y", "z", "p", "q", "r"]]
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).all()
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class AttributeOverheadTest(NoCache, fixtures.MappedTest):
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__requires__ = ("python_profiling_backend",)
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@classmethod
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def define_tables(cls, metadata):
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Table(
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"parent",
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metadata,
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Column(
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"id", Integer, primary_key=True, test_needs_autoincrement=True
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),
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Column("data", String(20)),
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)
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Table(
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"child",
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metadata,
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Column(
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"id", Integer, primary_key=True, test_needs_autoincrement=True
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),
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Column("data", String(20)),
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Column(
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"parent_id", Integer, ForeignKey("parent.id"), nullable=False
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),
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)
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@classmethod
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def setup_classes(cls):
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class Parent(cls.Basic):
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pass
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class Child(cls.Basic):
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pass
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@classmethod
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def setup_mappers(cls):
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Child, Parent, parent, child = (
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cls.classes.Child,
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cls.classes.Parent,
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cls.tables.parent,
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cls.tables.child,
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)
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mapper(
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Parent,
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parent,
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properties={"children": relationship(Child, backref="parent")},
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)
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mapper(Child, child)
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def test_attribute_set(self):
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Parent, Child = self.classes.Parent, self.classes.Child
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p1 = Parent()
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c1 = Child()
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@profiling.function_call_count()
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def go():
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for i in range(30):
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c1.parent = p1
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c1.parent = None
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c1.parent = p1
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del c1.parent
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go()
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def test_collection_append_remove(self):
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Parent, Child = self.classes.Parent, self.classes.Child
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p1 = Parent()
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children = [Child() for i in range(100)]
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@profiling.function_call_count()
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def go():
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for child in children:
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p1.children.append(child)
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for child in children:
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p1.children.remove(child)
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go()
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|
|
|
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class SessionTest(NoCache, fixtures.MappedTest):
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__requires__ = ("python_profiling_backend",)
|
|
|
|
@classmethod
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def define_tables(cls, metadata):
|
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Table(
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"parent",
|
|
metadata,
|
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Column(
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"id", Integer, primary_key=True, test_needs_autoincrement=True
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),
|
|
Column("data", String(20)),
|
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)
|
|
Table(
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"child",
|
|
metadata,
|
|
Column(
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"id", Integer, primary_key=True, test_needs_autoincrement=True
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|
),
|
|
Column("data", String(20)),
|
|
Column(
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"parent_id", Integer, ForeignKey("parent.id"), nullable=False
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),
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)
|
|
|
|
@classmethod
|
|
def setup_classes(cls):
|
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class Parent(cls.Basic):
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pass
|
|
|
|
class Child(cls.Basic):
|
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pass
|
|
|
|
@classmethod
|
|
def setup_mappers(cls):
|
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Child, Parent, parent, child = (
|
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cls.classes.Child,
|
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cls.classes.Parent,
|
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cls.tables.parent,
|
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cls.tables.child,
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)
|
|
|
|
mapper(
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Parent,
|
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parent,
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properties={"children": relationship(Child, backref="parent")},
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)
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mapper(Child, child)
|
|
|
|
def test_expire_lots(self):
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Parent, Child = self.classes.Parent, self.classes.Child
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obj = [
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Parent(children=[Child() for j in range(10)]) for i in range(10)
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]
|
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|
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sess = Session()
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sess.add_all(obj)
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sess.flush()
|
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|
|
@profiling.function_call_count()
|
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def go():
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sess.expire_all()
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go()
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|
|
|
|
class QueryTest(NoCache, fixtures.MappedTest):
|
|
__requires__ = ("python_profiling_backend",)
|
|
|
|
@classmethod
|
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def define_tables(cls, metadata):
|
|
Table(
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"parent",
|
|
metadata,
|
|
Column(
|
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"id", Integer, primary_key=True, test_needs_autoincrement=True
|
|
),
|
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Column("data1", String(20)),
|
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Column("data2", String(20)),
|
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Column("data3", String(20)),
|
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Column("data4", String(20)),
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)
|
|
|
|
@classmethod
|
|
def setup_classes(cls):
|
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class Parent(cls.Basic):
|
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pass
|
|
|
|
@classmethod
|
|
def setup_mappers(cls):
|
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Parent = cls.classes.Parent
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parent = cls.tables.parent
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|
|
mapper(Parent, parent)
|
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|
|
def _fixture(self):
|
|
Parent = self.classes.Parent
|
|
sess = Session()
|
|
sess.add_all(
|
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[
|
|
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()
|
|
|
|
# warm up cache
|
|
for attr in [Parent.data1, Parent.data2, Parent.data3, Parent.data4]:
|
|
attr.__clause_element__()
|
|
|
|
@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(NoCache, fixtures.MappedTest):
|
|
"""basic test for selectin() loading, which uses a lambda query.
|
|
|
|
For the previous "baked query" version of this, statement caching
|
|
was still taking effect as the selectinloader used its own baked
|
|
query cache. in 1.4 we align the loader caches with the global
|
|
"cache_size" (tenatitively) so the callcount has gone up to accommodate
|
|
for 3x the compilations.
|
|
|
|
"""
|
|
|
|
__requires__ = ("python_profiling_backend",)
|
|
|
|
@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, connection):
|
|
A, B, C = cls.classes("A", "B", "C")
|
|
s = Session(connection)
|
|
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))
|
|
|
|
# note this value went up when we removed query._attributes;
|
|
# this is because the test was previously making use of the same
|
|
# loader option state repeatedly without rebuilding it.
|
|
|
|
@profiling.function_call_count()
|
|
def go():
|
|
for i in range(100):
|
|
obj = q.all()
|
|
list(obj)
|
|
sess.close()
|
|
|
|
go()
|
|
|
|
|
|
class JoinedEagerLoadTest(NoCache, fixtures.MappedTest):
|
|
__requires__ = ("python_profiling_backend",)
|
|
|
|
@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, connection):
|
|
A, B, C, D, E, F, G = cls.classes("A", "B", "C", "D", "E", "F", "G")
|
|
s = Session(connection)
|
|
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(testing.db)
|
|
|
|
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),
|
|
)
|
|
|
|
compile_state = q._compile_state()
|
|
|
|
from sqlalchemy.orm.context import ORMCompileState
|
|
|
|
@profiling.function_call_count()
|
|
def go():
|
|
for i in range(100):
|
|
# NOTE: this test was broken in
|
|
# 77f1b7d236dba6b1c859bb428ef32d118ec372e6 because we started
|
|
# clearing out the attributes after the first iteration. make
|
|
# sure the attributes are there every time.
|
|
assert compile_state.attributes
|
|
exec_opts = {}
|
|
bind_arguments = {}
|
|
ORMCompileState.orm_pre_session_exec(
|
|
sess,
|
|
compile_state.select_statement,
|
|
{},
|
|
exec_opts,
|
|
bind_arguments,
|
|
is_reentrant_invoke=False,
|
|
)
|
|
|
|
r = sess.connection().execute(
|
|
compile_state.statement,
|
|
execution_options=exec_opts,
|
|
bind_arguments=bind_arguments,
|
|
)
|
|
|
|
r.context.compiled.compile_state = compile_state
|
|
obj = ORMCompileState.orm_setup_cursor_result(
|
|
sess,
|
|
compile_state.statement,
|
|
{},
|
|
exec_opts,
|
|
{},
|
|
r,
|
|
)
|
|
list(obj.unique())
|
|
sess.close()
|
|
|
|
go()
|
|
|
|
|
|
class JoinConditionTest(NoCache, fixtures.DeclarativeMappedTest):
|
|
__requires__ = ("python_profiling_backend",)
|
|
|
|
@classmethod
|
|
def setup_classes(cls):
|
|
class A(cls.DeclarativeBasic):
|
|
__tablename__ = "a"
|
|
|
|
id = Column(Integer, primary_key=True)
|
|
b_id = Column(ForeignKey("b.id"))
|
|
b = relationship("B")
|
|
|
|
class B(cls.DeclarativeBasic):
|
|
__tablename__ = "b"
|
|
|
|
id = Column(Integer, primary_key=True)
|
|
d_id = Column(ForeignKey("d.id"))
|
|
|
|
class C(cls.DeclarativeBasic):
|
|
__tablename__ = "c"
|
|
|
|
id = Column(Integer, primary_key=True)
|
|
a_id = Column(ForeignKey("a.id"))
|
|
d_id = Column(ForeignKey("d.id"))
|
|
|
|
class D(cls.DeclarativeBasic):
|
|
__tablename__ = "d"
|
|
|
|
id = Column(Integer, primary_key=True)
|
|
|
|
j = join(B, D, B.d_id == D.id).join(C, C.d_id == D.id)
|
|
|
|
A.d = relationship(
|
|
"D",
|
|
secondary=j,
|
|
primaryjoin=and_(A.b_id == B.id, A.id == C.a_id),
|
|
secondaryjoin=D.id == B.d_id,
|
|
uselist=False,
|
|
viewonly=True,
|
|
)
|
|
|
|
def test_a_to_b_plain(self):
|
|
A, B = self.classes("A", "B")
|
|
|
|
# should not use aliasing or adaption so should be cheap
|
|
@profiling.function_call_count(times=50, warmup=1)
|
|
def go():
|
|
orm_join(A, B, A.b)
|
|
|
|
go()
|
|
|
|
def test_a_to_b_aliased(self):
|
|
A, B = self.classes("A", "B")
|
|
|
|
a1 = aliased(A)
|
|
|
|
# uses aliasing, therefore adaption which is expensive
|
|
@profiling.function_call_count(times=50, warmup=1)
|
|
def go():
|
|
orm_join(a1, B, a1.b)
|
|
|
|
go()
|
|
|
|
def test_a_to_d(self):
|
|
A, D = self.classes("A", "D")
|
|
|
|
# the join condition between A and D uses a secondary selectable with
|
|
# overlap so incurs aliasing, which is expensive, there is also a check
|
|
# that determines that this overlap exists which is not currently
|
|
# cached
|
|
@profiling.function_call_count(times=50, warmup=1)
|
|
def go():
|
|
orm_join(A, D, A.d)
|
|
|
|
go()
|
|
|
|
def test_a_to_d_aliased(self):
|
|
A, D = self.classes("A", "D")
|
|
|
|
a1 = aliased(A)
|
|
|
|
# aliased, uses adaption therefore expensive
|
|
@profiling.function_call_count(times=50, warmup=1)
|
|
def go():
|
|
orm_join(a1, D, a1.d)
|
|
|
|
go()
|
|
|
|
|
|
class BranchedOptionTest(NoCache, fixtures.MappedTest):
|
|
__requires__ = ("python_profiling_backend",)
|
|
|
|
@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_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)
|
|
|
|
context = q._compile_state()
|
|
|
|
@profiling.function_call_count(warmup=1)
|
|
def go():
|
|
q2 = q.options(opts)
|
|
context.query = q2
|
|
context.attributes = q2._attributes = {
|
|
"_unbound_load_dedupes": set()
|
|
}
|
|
for opt in q2._with_options:
|
|
opt.process_compile_state(context)
|
|
|
|
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)
|
|
|
|
context = q._compile_state()
|
|
|
|
@profiling.function_call_count(warmup=1)
|
|
def go():
|
|
q2 = q.options(opts)
|
|
context.query = q2
|
|
context.attributes = q2._attributes = {
|
|
"_unbound_load_dedupes": set()
|
|
}
|
|
for opt in q2._with_options:
|
|
opt.process_compile_state(context)
|
|
|
|
go()
|
|
|
|
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class AnnotatedOverheadTest(NoCache, fixtures.MappedTest):
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__requires__ = ("python_profiling_backend",)
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@classmethod
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def define_tables(cls, metadata):
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Table(
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"a",
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metadata,
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Column(
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"id", Integer, primary_key=True, test_needs_autoincrement=True
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),
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Column("data", String(50)),
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)
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@classmethod
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def setup_classes(cls):
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class A(cls.Basic):
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pass
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@classmethod
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def setup_mappers(cls):
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A = cls.classes.A
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a = cls.tables.a
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mapper(A, a)
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@classmethod
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def insert_data(cls, connection):
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A = cls.classes.A
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s = Session(connection)
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s.add_all([A(data="asdf") for i in range(5)])
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s.commit()
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def test_no_bundle(self):
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A = self.classes.A
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s = Session()
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q = s.query(A).select_from(A)
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@profiling.function_call_count(warmup=1)
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def go():
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for i in range(100):
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q.all()
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go()
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def test_no_entity_wo_annotations(self):
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A = self.classes.A
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a = self.tables.a
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s = Session()
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q = s.query(a.c.data).select_from(A)
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@profiling.function_call_count(warmup=1)
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def go():
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for i in range(100):
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q.all()
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go()
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def test_no_entity_w_annotations(self):
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A = self.classes.A
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s = Session()
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q = s.query(A.data).select_from(A)
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@profiling.function_call_count(warmup=1)
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def go():
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for i in range(100):
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q.all()
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go()
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def test_entity_w_annotations(self):
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A = self.classes.A
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s = Session()
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q = s.query(A, A.data).select_from(A)
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@profiling.function_call_count(warmup=1)
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def go():
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for i in range(100):
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q.all()
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go()
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def test_entity_wo_annotations(self):
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A = self.classes.A
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a = self.tables.a
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s = Session()
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q = s.query(A, a.c.data).select_from(A)
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@profiling.function_call_count(warmup=1)
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def go():
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for i in range(100):
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q.all()
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go()
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def test_no_bundle_wo_annotations(self):
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A = self.classes.A
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a = self.tables.a
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s = Session()
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q = s.query(a.c.data, A).select_from(A)
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@profiling.function_call_count(warmup=1)
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def go():
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for i in range(100):
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q.all()
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go()
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def test_no_bundle_w_annotations(self):
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A = self.classes.A
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s = Session()
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q = s.query(A.data, A).select_from(A)
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@profiling.function_call_count(warmup=1)
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def go():
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for i in range(100):
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q.all()
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go()
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def test_bundle_wo_annotation(self):
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A = self.classes.A
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a = self.tables.a
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s = Session()
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q = s.query(Bundle("ASdf", a.c.data), A).select_from(A)
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@profiling.function_call_count(warmup=1)
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def go():
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for i in range(100):
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q.all()
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go()
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def test_bundle_w_annotation(self):
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A = self.classes.A
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s = Session()
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q = s.query(Bundle("ASdf", A.data), A).select_from(A)
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@profiling.function_call_count(warmup=1)
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def go():
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for i in range(100):
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q.all()
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go()
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