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from tests.dialects.test_dialect import Validator
class TestMySQL(Validator):
dialect = "mysql"
def test_ddl(self):
self.validate_all(
"CREATE TABLE z (a INT) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARACTER SET=utf8 COLLATE=utf8_bin COMMENT='x'",
write={
"mysql": "CREATE TABLE z (a INT) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARACTER SET=utf8 COLLATE=utf8_bin COMMENT='x'",
"spark": "CREATE TABLE z (a INT) COMMENT 'x'",
},
)
def test_identity(self):
self.validate_identity("SELECT CAST(`a`.`b` AS INT) FROM foo")
self.validate_identity("SELECT TRIM(LEADING 'bla' FROM ' XXX ')")
self.validate_identity("SELECT TRIM(TRAILING 'bla' FROM ' XXX ')")
self.validate_identity("SELECT TRIM(BOTH 'bla' FROM ' XXX ')")
self.validate_identity("SELECT TRIM('bla' FROM ' XXX ')")
def test_introducers(self):
self.validate_all(
"_utf8mb4 'hola'",
read={
"mysql": "_utf8mb4'hola'",
},
write={
"mysql": "_utf8mb4 'hola'",
},
)
def test_hexadecimal_literal(self):
self.validate_all(
"SELECT 0xCC",
write={
"mysql": "SELECT x'CC'",
"sqlite": "SELECT x'CC'",
"spark": "SELECT X'CC'",
"trino": "SELECT X'CC'",
"bigquery": "SELECT 0xCC",
"oracle": "SELECT 204",
},
)
self.validate_all(
"SELECT X'1A'",
write={
"mysql": "SELECT x'1A'",
},
)
self.validate_all(
"SELECT 0xz",
write={
"mysql": "SELECT `0xz`",
},
)
def test_bits_literal(self):
self.validate_all(
"SELECT 0b1011",
write={
"mysql": "SELECT b'1011'",
"postgres": "SELECT b'1011'",
"oracle": "SELECT 11",
},
)
self.validate_all(
"SELECT B'1011'",
write={
"mysql": "SELECT b'1011'",
"postgres": "SELECT b'1011'",
"oracle": "SELECT 11",
},
)
def test_string_literals(self):
self.validate_all(
'SELECT "2021-01-01" + INTERVAL 1 MONTH',
write={
"mysql": "SELECT '2021-01-01' + INTERVAL 1 MONTH",
},
)
def test_convert(self):
self.validate_all(
"CONVERT(x USING latin1)",
write={
"mysql": "CAST(x AS CHAR CHARACTER SET latin1)",
},
)
self.validate_all(
"CAST(x AS CHAR CHARACTER SET latin1)",
write={
"mysql": "CAST(x AS CHAR CHARACTER SET latin1)",
},
)
def test_hash_comments(self):
self.validate_all(
"SELECT 1 # arbitrary content,,, until end-of-line",
write={
"mysql": "SELECT 1",
},
)
def test_mysql(self):
self.validate_all(
"GROUP_CONCAT(DISTINCT x ORDER BY y DESC)",
write={
"mysql": "GROUP_CONCAT(DISTINCT x ORDER BY y DESC SEPARATOR ',')",
"sqlite": "GROUP_CONCAT(DISTINCT x ORDER BY y DESC)",
},
)
self.validate_all(
"GROUP_CONCAT(DISTINCT x ORDER BY y DESC SEPARATOR '')",
write={
"mysql": "GROUP_CONCAT(DISTINCT x ORDER BY y DESC SEPARATOR '')",
"sqlite": "GROUP_CONCAT(DISTINCT x ORDER BY y DESC, '')",
},
)
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