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from __future__ import unicode_literals
"""Benchmark for SQLAlchemy.
An adaptation of Robert Brewers' ZooMark speed tests. """
import datetime
from sqlalchemy import Table, Column, Integer, Unicode, Date, \
DateTime, Time, Float, Sequence, ForeignKey, \
select, join, and_, outerjoin, func
from sqlalchemy.testing import replay_fixture
ITERATIONS = 1
class ZooMarkTest(replay_fixture.ReplayFixtureTest):
"""Runs the ZooMark and squawks if method counts vary from the norm."""
__requires__ = 'cpython',
__only_on__ = 'postgresql+psycopg2'
def _run_steps(self, ctx):
with ctx():
self._baseline_1a_populate()
with ctx():
self._baseline_2_insert()
with ctx():
self._baseline_3_properties()
with ctx():
self._baseline_4_expressions()
with ctx():
self._baseline_5_aggregates()
with ctx():
self._baseline_6_editing()
with ctx():
self._baseline_7_multiview()
def setup_engine(self):
self._baseline_1_create_tables()
def teardown_engine(self):
self._baseline_8_drop()
def _baseline_1_create_tables(self):
Table(
'Zoo',
self.metadata,
Column('ID', Integer, Sequence('zoo_id_seq'),
primary_key=True, index=True),
Column('Name', Unicode(255)),
Column('Founded', Date),
Column('Opens', Time),
Column('LastEscape', DateTime),
Column('Admission', Float),
)
Table(
'Animal',
self.metadata,
Column('ID', Integer, Sequence('animal_id_seq'),
primary_key=True),
Column('ZooID', Integer, ForeignKey('Zoo.ID'), index=True),
Column('Name', Unicode(100)),
Column('Species', Unicode(100)),
Column('Legs', Integer, default=4),
Column('LastEscape', DateTime),
Column('Lifespan', Float(4)),
Column('MotherID', Integer, ForeignKey('Animal.ID')),
Column('PreferredFoodID', Integer),
Column('AlternateFoodID', Integer),
)
self.metadata.create_all()
def _baseline_1a_populate(self):
Zoo = self.metadata.tables['Zoo']
Animal = self.metadata.tables['Animal']
engine = self.metadata.bind
wap = engine.execute(Zoo.insert(), Name='Wild Animal Park',
Founded=datetime.date(2000, 1, 1),
Opens=datetime.time(8, 15, 59),
LastEscape=datetime.datetime(
2004, 7, 29, 5, 6, 7),
Admission=4.95).inserted_primary_key[0]
sdz = engine.execute(Zoo.insert(), Name='San Diego Zoo',
Founded=datetime.date(1935, 9, 13),
Opens=datetime.time(9, 0, 0),
Admission=0).inserted_primary_key[0]
engine.execute(Zoo.insert(inline=True), Name='Montr\xe9al Biod\xf4me',
Founded=datetime.date(1992, 6, 19),
Opens=datetime.time(9, 0, 0), Admission=11.75)
seaworld = engine.execute(Zoo.insert(), Name='Sea_World',
Admission=60).inserted_primary_key[0]
# Let's add a crazy futuristic Zoo to test large date values.
engine.execute(
Zoo.insert(), Name='Luna Park',
Founded=datetime.date(2072, 7, 17),
Opens=datetime.time(0, 0, 0),
Admission=134.95).inserted_primary_key[0]
# Animals
leopardid = engine.execute(Animal.insert(), Species='Leopard',
Lifespan=73.5).inserted_primary_key[0]
engine.execute(Animal.update(Animal.c.ID == leopardid), ZooID=wap,
LastEscape=datetime.datetime(
2004, 12, 21, 8, 15, 0, 999907,)
)
engine.execute(
Animal.insert(),
Species='Lion', ZooID=wap).inserted_primary_key[0]
engine.execute(Animal.insert(), Species='Slug', Legs=1, Lifespan=.75)
engine.execute(Animal.insert(), Species='Tiger',
ZooID=sdz).inserted_primary_key[0]
# Override Legs.default with itself just to make sure it works.
engine.execute(Animal.insert(inline=True), Species='Bear', Legs=4)
engine.execute(Animal.insert(inline=True), Species='Ostrich', Legs=2,
Lifespan=103.2)
engine.execute(Animal.insert(inline=True), Species='Centipede',
Legs=100)
engine.execute(Animal.insert(), Species='Emperor Penguin',
Legs=2, ZooID=seaworld).inserted_primary_key[0]
engine.execute(Animal.insert(), Species='Adelie Penguin',
Legs=2, ZooID=seaworld).inserted_primary_key[0]
engine.execute(Animal.insert(inline=True), Species='Millipede',
Legs=1000000, ZooID=sdz)
# Add a mother and child to test relationships
bai_yun = engine.execute(
Animal.insert(),
Species='Ape',
Name='Bai Yun',
Legs=2).inserted_primary_key[0]
engine.execute(Animal.insert(inline=True), Species='Ape',
Name='Hua Mei', Legs=2, MotherID=bai_yun)
def _baseline_2_insert(self):
Animal = self.metadata.tables['Animal']
i = Animal.insert(inline=True)
for x in range(ITERATIONS):
i.execute(Species='Tick', Name='Tick %d' % x, Legs=8)
def _baseline_3_properties(self):
Zoo = self.metadata.tables['Zoo']
Animal = self.metadata.tables['Animal']
engine = self.metadata.bind
def fullobject(select):
"""Iterate over the full result row."""
return list(engine.execute(select).first())
for x in range(ITERATIONS):
# Zoos
fullobject(Zoo.select(Zoo.c.Name == 'Wild Animal Park'))
fullobject(Zoo.select(Zoo.c.Founded ==
datetime.date(1935, 9, 13)))
fullobject(Zoo.select(Zoo.c.Name ==
'Montr\xe9al Biod\xf4me'))
fullobject(Zoo.select(Zoo.c.Admission == float(60)))
# Animals
fullobject(Animal.select(Animal.c.Species == 'Leopard'))
fullobject(Animal.select(Animal.c.Species == 'Ostrich'))
fullobject(Animal.select(Animal.c.Legs == 1000000))
fullobject(Animal.select(Animal.c.Species == 'Tick'))
def _baseline_4_expressions(self):
Zoo = self.metadata.tables['Zoo']
Animal = self.metadata.tables['Animal']
engine = self.metadata.bind
def fulltable(select):
"""Iterate over the full result table."""
return [list(row) for row in engine.execute(select).fetchall()]
for x in range(ITERATIONS):
assert len(fulltable(Zoo.select())) == 5
assert len(fulltable(Animal.select())) == ITERATIONS + 12
assert len(fulltable(Animal.select(Animal.c.Legs == 4))) \
== 4
assert len(fulltable(Animal.select(Animal.c.Legs == 2))) \
== 5
assert len(
fulltable(
Animal.select(
and_(
Animal.c.Legs >= 2,
Animal.c.Legs < 20)))) == ITERATIONS + 9
assert len(fulltable(Animal.select(Animal.c.Legs > 10))) \
== 2
assert len(fulltable(Animal.select(Animal.c.Lifespan
> 70))) == 2
assert len(fulltable(Animal.select(Animal.c.Species.
startswith('L')))) == 2
assert len(fulltable(Animal.select(Animal.c.Species.
endswith('pede')))) == 2
assert len(fulltable(Animal.select(Animal.c.LastEscape
!= None))) == 1
assert len(
fulltable(
Animal.select(
None == Animal.c.LastEscape))) == ITERATIONS + 11
# In operator (containedby)
assert len(fulltable(Animal.select(Animal.c.Species.like('%pede%'
)))) == 2
assert len(
fulltable(
Animal.select(
Animal.c.Species.in_(
['Lion', 'Tiger', 'Bear'])))) == 3
# Try In with cell references
class thing(object):
pass
pet, pet2 = thing(), thing()
pet.Name, pet2.Name = 'Slug', 'Ostrich'
assert len(
fulltable(
Animal.select(
Animal.c.Species.in_([pet.Name, pet2.Name])))) == 2
# logic and other functions
assert len(fulltable(Animal.select(Animal.c.Species.like('Slug'
)))) == 1
assert len(fulltable(Animal.select(Animal.c.Species.like('%pede%'
)))) == 2
name = 'Lion'
assert len(
fulltable(
Animal.select(
func.length(
Animal.c.Species) == len(name)))) == ITERATIONS + 3
assert len(
fulltable(
Animal.select(
Animal.c.Species.like('%i%')))) == ITERATIONS + 7
# Test now(), today(), year(), month(), day()
assert len(
fulltable(
Zoo.select(
and_(
Zoo.c.Founded != None,
Zoo.c.Founded < func.current_timestamp(
_type=Date))))) == 3
assert len(
fulltable(
Animal.select(
Animal.c.LastEscape == func.current_timestamp(
_type=Date)))) == 0
assert len(
fulltable(
Animal.select(
func.date_part(
'year',
Animal.c.LastEscape) == 2004))) == 1
assert len(
fulltable(
Animal.select(
func.date_part(
'month',
Animal.c.LastEscape) == 12))) == 1
assert len(
fulltable(
Animal.select(
func.date_part(
'day',
Animal.c.LastEscape) == 21))) == 1
def _baseline_5_aggregates(self):
Animal = self.metadata.tables['Animal']
Zoo = self.metadata.tables['Zoo']
engine = self.metadata.bind
for x in range(ITERATIONS):
# views
view = engine.execute(select([Animal.c.Legs])).fetchall()
legs = sorted([x[0] for x in view])
expected = {
'Leopard': 73.5,
'Slug': .75,
'Tiger': None,
'Lion': None,
'Bear': None,
'Ostrich': 103.2,
'Centipede': None,
'Emperor Penguin': None,
'Adelie Penguin': None,
'Millipede': None,
'Ape': None,
'Tick': None,
}
for species, lifespan in engine.execute(
select([Animal.c.Species, Animal.c.Lifespan])).fetchall():
assert lifespan == expected[species]
expected = ['Montr\xe9al Biod\xf4me', 'Wild Animal Park']
e = select([Zoo.c.Name],
and_(Zoo.c.Founded != None,
Zoo.c.Founded <= func.current_timestamp(),
Zoo.c.Founded >= datetime.date(1990,
1,
1)))
values = [val[0] for val in engine.execute(e).fetchall()]
assert set(values) == set(expected)
# distinct
legs = [
x[0]
for x in engine.execute(
select([Animal.c.Legs],
distinct=True)).fetchall()]
legs.sort()
def _baseline_6_editing(self):
Zoo = self.metadata.tables['Zoo']
engine = self.metadata.bind
for x in range(ITERATIONS):
# Edit
SDZ = engine.execute(Zoo.select(Zoo.c.Name == 'San Diego Zoo'
)).first()
engine.execute(
Zoo.update(
Zoo.c.ID == SDZ['ID']),
Name='The San Diego Zoo',
Founded=datetime.date(1900, 1, 1),
Opens=datetime.time(7, 30, 0), Admission='35.00')
# Test edits
SDZ = engine.execute(Zoo.select(Zoo.c.Name == 'The San Diego Zoo'
)).first()
assert SDZ['Founded'] == datetime.date(1900, 1, 1), \
SDZ['Founded']
# Change it back
engine.execute(Zoo.update(Zoo.c.ID == SDZ['ID'
]), Name='San Diego Zoo',
Founded=datetime.date(1935, 9, 13),
Opens=datetime.time(9, 0, 0),
Admission='0')
# Test re-edits
SDZ = engine.execute(Zoo.select(Zoo.c.Name == 'San Diego Zoo'
)).first()
assert SDZ['Founded'] == datetime.date(1935, 9, 13)
def _baseline_7_multiview(self):
Zoo = self.metadata.tables['Zoo']
Animal = self.metadata.tables['Animal']
engine = self.metadata.bind
def fulltable(select):
"""Iterate over the full result table."""
return [list(row) for row in engine.execute(select).fetchall()]
for x in range(ITERATIONS):
fulltable(
select(
[Zoo.c.ID] + list(Animal.c),
Zoo.c.Name == 'San Diego Zoo',
from_obj=[join(Zoo, Animal)]))
Zoo.select(Zoo.c.Name == 'San Diego Zoo')
fulltable(
select(
[Zoo.c.ID, Animal.c.ID],
and_(
Zoo.c.Name == 'San Diego Zoo',
Animal.c.Species == 'Leopard'
),
from_obj=[join(Zoo, Animal)])
)
# Now try the same query with INNER, LEFT, and RIGHT JOINs.
fulltable(select([
Zoo.c.Name, Animal.c.Species],
from_obj=[join(Zoo, Animal)]))
fulltable(select([
Zoo.c.Name, Animal.c.Species],
from_obj=[outerjoin(Zoo, Animal)]))
fulltable(select([
Zoo.c.Name, Animal.c.Species],
from_obj=[outerjoin(Animal, Zoo)]))
def _baseline_8_drop(self):
self.metadata.drop_all()
|
