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test_vector.py
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285 lines (247 loc) · 9.17 KB
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#
# This source file is part of the EdgeDB open source project.
#
# Copyright 2019-present MagicStack Inc. and the EdgeDB authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from gel import _testbase as tb
import edgedb
import array
import math
import unittest
# An array.array subtype where indexing doesn't work.
# We use this to verify that the non-boxing memoryview based
# fast path works, since the slow path won't work on this object.
class brokenarray(array.array):
def __getitem__(self, i):
raise AssertionError("the fast path wasn't used!")
class TestVector(tb.SyncQueryTestCase):
PGVECTOR_VER = None
@classmethod
def setUpClass(cls):
super().setUpClass()
cls.PGVECTOR_VER = cls.client.query_single('''
select assert_single((
select sys::ExtensionPackage filter .name = 'pgvector'
)).version
''')
if cls.PGVECTOR_VER is None:
raise unittest.SkipTest("feature not implemented")
cls.client.execute('''
create extension pgvector;
''')
@classmethod
def tearDownClass(cls):
try:
cls.client.execute('''
drop extension pgvector;
''')
finally:
super().tearDownClass()
def test_vector_01(self):
val = self.client.query_single('''
select <ext::pgvector::vector>[1.5,2.0,3.8]
''')
self.assertTrue(isinstance(val, array.array))
self.assertEqual(val, array.array('f', [1.5, 2.0, 3.8]))
val = self.client.query_single(
'''
select <json><ext::pgvector::vector>$0
''',
[3.0, 9.0, -42.5],
)
self.assertEqual(val, '[3, 9, -42.5]')
val = self.client.query_single(
'''
select <json><ext::pgvector::vector>$0
''',
array.array('f', [3.0, 9.0, -42.5])
)
self.assertEqual(val, '[3, 9, -42.5]')
val = self.client.query_single(
'''
select <json><ext::pgvector::vector>$0
''',
array.array('i', [1, 2, 3]),
)
self.assertEqual(val, '[1, 2, 3]')
# Test that the fast-path works: if the encoder tries to
# call __getitem__ on this brokenarray, it will fail.
val = self.client.query_single(
'''
select <json><ext::pgvector::vector>$0
''',
brokenarray('f', [3.0, 9.0, -42.5])
)
self.assertEqual(val, '[3, 9, -42.5]')
# I don't think it's worth adding a dependency to test this,
# but this works too:
# import numpy as np
# val = self.client.query_single(
# '''
# select <json><ext::pgvector::vector>$0
# ''',
# np.asarray([3.0, 9.0, -42.5], dtype=np.float32),
# )
# self.assertEqual(val, '[3,9,-42.5]')
# Some sad path tests
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::vector>$0
''',
[3.0, None, -42.5],
)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::vector>$0
''',
[3.0, 'x', -42.5],
)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::vector>$0
''',
'foo',
)
def test_vector_02(self):
if self.PGVECTOR_VER < (0, 7):
self.skipTest("need at least pgvector 0.7.4 for sparsevec")
val = self.client.query_single(
'''
select <ext::pgvector::sparsevec>
<ext::pgvector::vector>[0, 1.5, 2.0, 3.8, 0, 0]
''',
)
self.assertEqual(val['dim'], 6)
self.assertEqual(val[1], 1.5)
self.assertEqual(val[2], 2)
self.assertTrue(math.isclose(val[3], 3.8, abs_tol=1e-6))
val = self.client.query_single(
'''
select <array<float32>><ext::pgvector::vector>
<ext::pgvector::sparsevec>$0
''',
{'dim': 6, 1: 1.5, 2: 2, 3: 3.8},
)
self.assertEqual(len(val), 6)
self.assertEqual(val[0], 0)
self.assertEqual(val[1], 1.5)
self.assertEqual(val[2], 2)
self.assertTrue(math.isclose(val[3], 3.8, abs_tol=1e-6))
self.assertEqual(val[4], 0)
self.assertEqual(val[5], 0)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::sparsevec>$0
''',
{'dim': 1, 1: 1.5, 2: 2, 3: 3.8},
)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::sparsevec>$0
''',
{'dims': 1, 1: 1.5, 2: 2, 3: 3.8},
)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::sparsevec>$0
''',
{'dim': 6, 1: 1.5, 2: 2, 3: '3.8'},
)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::sparsevec>$0
''',
{'dim': 6, 1: 1.5, 2: 2, '3': 3.8},
)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::sparsevec>$0
''',
{'dim': 6, 1: 1.5, 2: 2, 3: 0},
)
def test_vector_03(self):
if self.PGVECTOR_VER < (0, 7):
self.skipTest("need at least pgvector 0.7.4 for halfvec")
val = self.client.query_single(
'''
select <ext::pgvector::halfvec>
[1.5, 2.0, 3.8, 0, 3.4575e-3, 65000,
6.0975e-5, 2.2345e-7, -5.96e-8]
''',
)
self.assertTrue(isinstance(val, array.array))
self.assertEqual(val[0], 1.5)
self.assertEqual(val[1], 2)
self.assertTrue(math.isclose(val[2], 3.80, rel_tol=1e-3))
self.assertEqual(val[3], 0)
self.assertTrue(math.isclose(val[4], 3.457e-3, rel_tol=1e-3))
self.assertTrue(math.isclose(val[5], 65000, rel_tol=1e-3))
# These values are sub-normal so they don't map perfectly onto f32
self.assertTrue(math.isclose(val[6], 6.0975e-5, rel_tol=1e-2))
self.assertTrue(math.isclose(val[7], 2.38e-7, rel_tol=1e-2))
self.assertTrue(math.isclose(val[8], -5.96e-8, rel_tol=1e-2))
val = self.client.query_single(
'''
select <array<float32>><ext::pgvector::halfvec>$0
''',
[1.5, 2.0, 3.8, 0, 3.4575e-3, 65000,
6.0975e-5, 2.385e-7, -5.97e-8],
)
self.assertEqual(val[0], 1.5)
self.assertEqual(val[1], 2)
self.assertTrue(math.isclose(val[2], 3.80, rel_tol=1e-3))
self.assertEqual(val[3], 0)
self.assertTrue(math.isclose(val[4], 3.457e-3, rel_tol=1e-3))
self.assertTrue(math.isclose(val[5], 65000, rel_tol=1e-3))
# These values are sub-normal so they don't map perfectly onto f32
self.assertTrue(math.isclose(val[6], 6.0975e-5, rel_tol=1e-2))
self.assertTrue(math.isclose(val[7], 2.38e-7, rel_tol=1e-2))
self.assertTrue(math.isclose(val[8], -5.96e-8, rel_tol=1e-2))
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::halfvec>$0
''',
[3.0, None, -42.5],
)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::halfvec>$0
''',
[3.0, 'x', -42.5],
)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::halfvec>$0
''',
'foo',
)
with self.assertRaises(edgedb.InvalidArgumentError):
self.client.query_single(
'''
select <ext::pgvector::halfvec>$0
''',
[1_000_000],
)