1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
import sqlglot
from sqlglot.dataframe.sql import functions as F
from sqlglot.dataframe.sql.session import SparkSession
from sqlglot.errors import OptimizeError
from tests.dataframe.unit.dataframe_test_base import DataFrameTestBase
class TestSessionCaseSensitivity(DataFrameTestBase):
def setUp(self) -> None:
super().setUp()
self.spark = SparkSession.builder.config("sqlframe.dialect", "snowflake").getOrCreate()
tests = [
(
"All lower no intention of CS",
"test",
"test",
{"name": "VARCHAR"},
"name",
'''SELECT "TEST"."NAME" AS "NAME" FROM "TEST" AS "TEST"''',
),
(
"Table has CS while column does not",
'"Test"',
'"Test"',
{"name": "VARCHAR"},
"name",
'''SELECT "Test"."NAME" AS "NAME" FROM "Test" AS "Test"''',
),
(
"Column has CS while table does not",
"test",
"test",
{'"Name"': "VARCHAR"},
'"Name"',
'''SELECT "TEST"."Name" AS "Name" FROM "TEST" AS "TEST"''',
),
(
"Both Table and column have CS",
'"Test"',
'"Test"',
{'"Name"': "VARCHAR"},
'"Name"',
'''SELECT "Test"."Name" AS "Name" FROM "Test" AS "Test"''',
),
(
"Lowercase CS table and column",
'"test"',
'"test"',
{'"name"': "VARCHAR"},
'"name"',
'''SELECT "test"."name" AS "name" FROM "test" AS "test"''',
),
(
"CS table and column and query table but no CS in query column",
'"test"',
'"test"',
{'"name"': "VARCHAR"},
"name",
OptimizeError(),
),
(
"CS table and column and query column but no CS in query table",
'"test"',
"test",
{'"name"': "VARCHAR"},
'"name"',
OptimizeError(),
),
]
def test_basic_case_sensitivity(self):
for test_name, table_name, spark_table, schema, spark_column, expected in self.tests:
with self.subTest(test_name):
sqlglot.schema.add_table(table_name, schema, dialect=self.spark.dialect)
df = self.spark.table(spark_table).select(F.col(spark_column))
if isinstance(expected, OptimizeError):
with self.assertRaises(OptimizeError):
df.sql()
else:
self.compare_sql(df, expected)
def test_alias(self):
col = F.col('"Name"')
self.assertEqual(col.sql(dialect=self.spark.dialect), '"Name"')
self.assertEqual(col.alias("nAME").sql(dialect=self.spark.dialect), '"Name" AS NAME')
self.assertEqual(col.alias('"nAME"').sql(dialect=self.spark.dialect), '"Name" AS "nAME"')
|
