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from tests.dialects.test_dialect import Validator
class TestTeradata(Validator):
dialect = "teradata"
def test_translate(self):
self.validate_all(
"TRANSLATE(x USING LATIN_TO_UNICODE)",
write={
"teradata": "CAST(x AS CHAR CHARACTER SET UNICODE)",
},
)
self.validate_identity("CAST(x AS CHAR CHARACTER SET UNICODE)")
def test_update(self):
self.validate_all(
"UPDATE A FROM schema.tableA AS A, (SELECT col1 FROM schema.tableA GROUP BY col1) AS B SET col2 = '' WHERE A.col1 = B.col1",
write={
"teradata": "UPDATE A FROM schema.tableA AS A, (SELECT col1 FROM schema.tableA GROUP BY col1) AS B SET col2 = '' WHERE A.col1 = B.col1",
"mysql": "UPDATE A SET col2 = '' FROM schema.tableA AS A, (SELECT col1 FROM schema.tableA GROUP BY col1) AS B WHERE A.col1 = B.col1",
},
)
def test_create(self):
self.validate_identity("CREATE TABLE x (y INT) PRIMARY INDEX (y) PARTITION BY y INDEX (y)")
self.validate_all(
"REPLACE VIEW a AS (SELECT b FROM c)",
write={"teradata": "CREATE OR REPLACE VIEW a AS (SELECT b FROM c)"},
)
self.validate_all(
"SEL a FROM b",
write={"teradata": "SELECT a FROM b"},
)
def test_insert(self):
self.validate_all(
"INS INTO x SELECT * FROM y", write={"teradata": "INSERT INTO x SELECT * FROM y"}
)
def test_mod(self):
self.validate_all("a MOD b", write={"teradata": "a MOD b", "mysql": "a % b"})
def test_abbrev(self):
self.validate_all("a LT b", write={"teradata": "a < b"})
self.validate_all("a LE b", write={"teradata": "a <= b"})
self.validate_all("a GT b", write={"teradata": "a > b"})
self.validate_all("a GE b", write={"teradata": "a >= b"})
self.validate_all("a ^= b", write={"teradata": "a <> b"})
self.validate_all("a NE b", write={"teradata": "a <> b"})
self.validate_all("a NOT= b", write={"teradata": "a <> b"})
def test_datatype(self):
self.validate_all(
"CREATE TABLE z (a ST_GEOMETRY(1))",
write={
"teradata": "CREATE TABLE z (a ST_GEOMETRY(1))",
"redshift": "CREATE TABLE z (a GEOMETRY(1))",
},
)
self.validate_identity("CREATE TABLE z (a SYSUDTLIB.INT)")
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