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test_edgeql_ext_pg_trgm.py
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#
# This source file is part of the EdgeDB open source project.
#
# Copyright 2023-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.
#
import os.path
from edb.testbase import server as tb
class TestEdgeQLExtPgTrgm(tb.QueryTestCase):
EXTENSIONS = ['pg_trgm']
BACKEND_SUPERUSER = True
SCHEMA = os.path.join(os.path.dirname(__file__), 'schemas',
'pg_trgm.esdl')
SETUP = os.path.join(os.path.dirname(__file__), 'schemas',
'pg_trgm_setup.edgeql')
async def test_edgeql_ext_pg_trgm_similarity(self):
await self.assert_query_result(
"""
SELECT
Gist {
p_str,
sim := ext::pg_trgm::similarity(.p_str, "qwertyu0988")
}
FILTER
ext::pg_trgm::similar(.p_str, "qwertyu0988")
ORDER BY
.sim DESC
THEN .p_str
LIMIT
11
""",
[
{
"p_str": "qwertyu0988",
"sim": 1.0,
},
{
"p_str": "qwertyu0980",
"sim": 0.714286,
},
{
"p_str": "qwertyu0981",
"sim": 0.714286,
},
{
"p_str": "qwertyu0982",
"sim": 0.714286,
},
{
"p_str": "qwertyu0983",
"sim": 0.714286,
},
{
"p_str": "qwertyu0984",
"sim": 0.714286,
},
{
"p_str": "qwertyu0985",
"sim": 0.714286,
},
{
"p_str": "qwertyu0986",
"sim": 0.714286,
},
{
"p_str": "qwertyu0987",
"sim": 0.714286,
},
{
"p_str": "qwertyu0989",
"sim": 0.714286,
},
{
"p_str": "qwertyu0088",
"sim": 0.6,
},
]
)
qry = """
SELECT
Gist {
p_str,
sim_dist := ext::pg_trgm::similarity_dist(
.p_str, "q0987wertyu0988"
)
}
ORDER BY
.sim_dist EMPTY LAST
LIMIT
2
"""
await self.assert_query_result(
qry,
[
{
"p_str": "qwertyu0988",
"sim_dist": 0.411765,
},
{
"p_str": "qwertyu0987",
"sim_dist": 0.5,
},
]
)
await self.assert_index_use(
qry,
index_type="ext::pg_trgm::gist",
)
async def test_edgeql_ext_pg_trgm_word_similarity(self):
await self.assert_query_result(
"""
SELECT
Gist {
p_str,
sim := ext::pg_trgm::word_similarity("Kabankala", .p_str)
}
FILTER
ext::pg_trgm::word_similar("Kabankala", .p_str)
ORDER BY
.sim DESC
THEN .p_str
""",
[
{
"p_str": "Kabankala",
"sim": 1.0,
},
{
"p_str": "Kabankalan City Public Plaza",
"sim": 0.9,
},
{
"p_str": "Abankala",
"sim": 0.7,
},
{
"p_str": "Ntombankala School",
"sim": 0.6,
},
]
)
qry = """
SELECT
Gist {
p_str,
word_sim_dist := ext::pg_trgm::word_similarity_dist(
"Kabankala", .p_str
)
}
ORDER BY
.word_sim_dist EMPTY LAST
LIMIT
7
"""
await self.assert_query_result(
qry,
[
{
"p_str": "Kabankala",
"word_sim_dist": 0.0,
},
{
"p_str": "Kabankalan City Public Plaza",
"word_sim_dist": 0.1,
},
{
"p_str": "Abankala",
"word_sim_dist": 0.3,
},
{
"p_str": "Ntombankala School",
"word_sim_dist": 0.4,
},
{
"p_str": "Kabakala",
"word_sim_dist": 0.416667,
},
{
"p_str": "Nehalla Bankalah Reserved Forest",
"word_sim_dist": 0.5,
},
{
"p_str": "Kabikala",
"word_sim_dist": 0.538462,
},
]
)
await self.assert_index_use(
qry,
index_type="ext::pg_trgm::gist",
)
async def test_edgeql_ext_pg_trgm_strict_word_similarity(self):
await self.assert_query_result(
"""
SELECT
Gist {
p_str,
sim := ext::pg_trgm::strict_word_similarity(
"Kabankala", .p_str
)
}
FILTER
ext::pg_trgm::strict_word_similar("Kabankala", .p_str)
ORDER BY
.sim DESC
THEN .p_str
""",
[
{
"p_str": "Kabankala",
"sim": 1.0,
},
{
"p_str": "Kabankalan City Public Plaza",
"sim": 0.75,
},
{
"p_str": "Abankala",
"sim": 0.583333,
},
{
"p_str": "Kabakala",
"sim": 0.583333,
},
]
)
qry = """
SELECT
Gist {
p_str,
word_sim_dist := ext::pg_trgm::strict_word_similarity_dist(
"Alaikallupoddakulam", .p_str
)
}
ORDER BY
.word_sim_dist EMPTY LAST
LIMIT
7
"""
await self.assert_query_result(
qry,
[
{
"p_str": "Alaikallupoddakulam",
"word_sim_dist": 0.0,
},
{
"p_str": "Alaikallupodda Alankulam",
"word_sim_dist": 0.25,
},
{
"p_str": "Alaikalluppodda Kulam",
"word_sim_dist": 0.32,
},
{
"p_str": "Mulaikallu Kulam",
"word_sim_dist": 0.615385,
},
{
"p_str": "Koraikalapu Kulam",
"word_sim_dist": 0.724138,
},
{
"p_str": "Vaikaliththevakulam",
"word_sim_dist": 0.75,
},
{
"p_str": "Karaivaikal Kulam",
"word_sim_dist": 0.766667,
},
]
)
await self.assert_index_use(
qry,
index_type="ext::pg_trgm::gist",
)
async def test_edgeql_ext_pg_trgm_config(self):
# We are going to fiddle with the similarity_threshold config
# and make sure it works right.
sim_query = """
WITH similar := (
SELECT
Gist {
p_str,
sim := ext::pg_trgm::similarity(.p_str, "qwertyu0988")
}
FILTER
ext::pg_trgm::similar(.p_str, "qwertyu0988")
),
SELECT exists similar and all(similar.sim >= <float32>$sim)
"""
cfg_query = """
select cfg::Config.extensions[is ext::pg_trgm::Config]
.similarity_threshold;
"""
await self.assert_query_result(
sim_query,
[True],
variables=dict(sim=0.3),
)
await self.assert_query_result(
sim_query,
[False],
variables=dict(sim=0.5),
)
await self.assert_query_result(
sim_query,
[False],
variables=dict(sim=0.9),
)
await self.assert_query_result(
cfg_query,
[0.3],
)
await self.con.execute('''
configure session
set ext::pg_trgm::Config::similarity_threshold := 0.5
''')
await self.assert_query_result(
sim_query,
[True],
variables=dict(sim=0.3),
)
await self.assert_query_result(
sim_query,
[True],
variables=dict(sim=0.5),
)
await self.assert_query_result(
sim_query,
[False],
variables=dict(sim=0.9),
)
await self.assert_query_result(
cfg_query,
[0.5],
)
await self.con.execute('''
configure session
set ext::pg_trgm::Config::similarity_threshold := 0.9
''')
await self.assert_query_result(
sim_query,
[True],
variables=dict(sim=0.3),
)
await self.assert_query_result(
sim_query,
[True],
variables=dict(sim=0.5),
)
await self.assert_query_result(
sim_query,
[True],
variables=dict(sim=0.9),
)
await self.assert_query_result(
cfg_query,
[0.9],
)
await self.con.execute('''
configure session
reset ext::pg_trgm::Config::similarity_threshold
''')
await self.assert_query_result(
sim_query,
[True],
variables=dict(sim=0.3),
)
await self.assert_query_result(
sim_query,
[False],
variables=dict(sim=0.5),
)
await self.assert_query_result(
sim_query,
[False],
variables=dict(sim=0.9),
)
await self.assert_query_result(
cfg_query,
[0.3],
)