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test_dialect.py
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import unittest
from sqlglot import (
Dialect,
Dialects,
ErrorLevel,
ParseError,
TokenError,
UnsupportedError,
exp,
parse_one,
)
from sqlglot.dialects import BigQuery, Hive, Snowflake
from sqlglot.parser import logger as parser_logger
class Validator(unittest.TestCase):
dialect = None
def parse_one(self, sql, **kwargs):
return parse_one(sql, read=self.dialect, **kwargs)
def validate_identity(
self, sql, write_sql=None, pretty=False, check_command_warning=False, identify=False
):
if check_command_warning:
with self.assertLogs(parser_logger) as cm:
expression = self.parse_one(sql)
assert f"'{sql[:100]}' contains unsupported syntax" in cm.output[0]
else:
expression = self.parse_one(sql)
self.assertEqual(
write_sql or sql, expression.sql(dialect=self.dialect, pretty=pretty, identify=identify)
)
return expression
def validate_all(self, sql, read=None, write=None, pretty=False, identify=False):
"""
Validate that:
1. Everything in `read` transpiles to `sql`
2. `sql` transpiles to everything in `write`
Args:
sql (str): Main SQL expression
read (dict): Mapping of dialect -> SQL
write (dict): Mapping of dialect -> SQL
pretty (bool): prettify both read and write
identify (bool): quote identifiers in both read and write
"""
expression = self.parse_one(sql)
for read_dialect, read_sql in (read or {}).items():
with self.subTest(f"{read_dialect} -> {sql}"):
self.assertEqual(
parse_one(read_sql, read_dialect).sql(
self.dialect,
unsupported_level=ErrorLevel.IGNORE,
pretty=pretty,
identify=identify,
),
sql,
)
for write_dialect, write_sql in (write or {}).items():
with self.subTest(f"{sql} -> {write_dialect}"):
if write_sql is UnsupportedError:
with self.assertRaises(UnsupportedError):
expression.sql(write_dialect, unsupported_level=ErrorLevel.RAISE)
else:
self.assertEqual(
expression.sql(
write_dialect,
unsupported_level=ErrorLevel.IGNORE,
pretty=pretty,
identify=identify,
),
write_sql,
)
class TestDialect(Validator):
maxDiff = None
def test_enum(self):
for dialect in Dialects:
self.assertIsNotNone(Dialect[dialect])
self.assertIsNotNone(Dialect.get(dialect))
self.assertIsNotNone(Dialect.get_or_raise(dialect))
self.assertIsNotNone(Dialect[dialect.value])
def test_get_or_raise(self):
self.assertIsInstance(Dialect.get_or_raise(Hive), Hive)
self.assertIsInstance(Dialect.get_or_raise(Hive()), Hive)
self.assertIsInstance(Dialect.get_or_raise("hive"), Hive)
with self.assertRaises(ValueError):
Dialect.get_or_raise(1)
default_mysql = Dialect.get_or_raise("mysql")
self.assertEqual(default_mysql.normalization_strategy, "CASE_SENSITIVE")
lowercase_mysql = Dialect.get_or_raise("mysql,normalization_strategy=lowercase")
self.assertEqual(lowercase_mysql.normalization_strategy, "LOWERCASE")
lowercase_mysql = Dialect.get_or_raise("mysql, normalization_strategy = lowercase")
self.assertEqual(lowercase_mysql.normalization_strategy.value, "LOWERCASE")
with self.assertRaises(AttributeError) as cm:
Dialect.get_or_raise("mysql, normalization_strategy")
self.assertEqual(str(cm.exception), "'bool' object has no attribute 'upper'")
with self.assertRaises(ValueError) as cm:
Dialect.get_or_raise("myqsl")
self.assertEqual(str(cm.exception), "Unknown dialect 'myqsl'. Did you mean mysql?")
with self.assertRaises(ValueError) as cm:
Dialect.get_or_raise("asdfjasodiufjsd")
self.assertEqual(str(cm.exception), "Unknown dialect 'asdfjasodiufjsd'.")
oracle_with_settings = Dialect.get_or_raise(
"oracle, normalization_strategy = lowercase, version = 19.5"
)
self.assertEqual(oracle_with_settings.normalization_strategy.value, "LOWERCASE")
self.assertEqual(oracle_with_settings.settings, {"version": "19.5"})
bool_settings = Dialect.get_or_raise("oracle, s1=TruE, s2=1, s3=FaLse, s4=0, s5=nonbool")
self.assertEqual(
bool_settings.settings,
{"s1": True, "s2": True, "s3": False, "s4": False, "s5": "nonbool"},
)
def test_compare_dialects(self):
bigquery_class = Dialect["bigquery"]
bigquery_object = BigQuery()
bigquery_string = "bigquery"
snowflake_class = Dialect["snowflake"]
snowflake_object = Snowflake()
snowflake_string = "snowflake"
self.assertEqual(snowflake_class, snowflake_class)
self.assertEqual(snowflake_class, snowflake_object)
self.assertEqual(snowflake_class, snowflake_string)
self.assertEqual(snowflake_object, snowflake_object)
self.assertEqual(snowflake_object, snowflake_string)
self.assertNotEqual(snowflake_class, bigquery_class)
self.assertNotEqual(snowflake_class, bigquery_object)
self.assertNotEqual(snowflake_class, bigquery_string)
self.assertNotEqual(snowflake_object, bigquery_object)
self.assertNotEqual(snowflake_object, bigquery_string)
self.assertTrue(snowflake_class in {"snowflake", "bigquery"})
self.assertTrue(snowflake_object in {"snowflake", "bigquery"})
self.assertFalse(snowflake_class in {"bigquery", "redshift"})
self.assertFalse(snowflake_object in {"bigquery", "redshift"})
def test_cast(self):
self.validate_all(
"CAST(a AS TEXT)",
write={
"bigquery": "CAST(a AS STRING)",
"clickhouse": "CAST(a AS Nullable(String))",
"drill": "CAST(a AS VARCHAR)",
"duckdb": "CAST(a AS TEXT)",
"materialize": "CAST(a AS TEXT)",
"mysql": "CAST(a AS CHAR)",
"hive": "CAST(a AS STRING)",
"oracle": "CAST(a AS CLOB)",
"postgres": "CAST(a AS TEXT)",
"presto": "CAST(a AS VARCHAR)",
"redshift": "CAST(a AS VARCHAR(MAX))",
"snowflake": "CAST(a AS TEXT)",
"spark": "CAST(a AS STRING)",
"starrocks": "CAST(a AS STRING)",
"tsql": "CAST(a AS VARCHAR(MAX))",
"doris": "CAST(a AS STRING)",
},
)
self.validate_all(
"CAST(a AS BINARY(4))",
write={
"bigquery": "CAST(a AS BYTES)",
"clickhouse": "CAST(a AS Nullable(BINARY(4)))",
"drill": "CAST(a AS VARBINARY(4))",
"duckdb": "CAST(a AS BLOB(4))",
"materialize": "CAST(a AS BYTEA(4))",
"mysql": "CAST(a AS BINARY(4))",
"hive": "CAST(a AS BINARY(4))",
"oracle": "CAST(a AS BLOB(4))",
"postgres": "CAST(a AS BYTEA(4))",
"presto": "CAST(a AS VARBINARY(4))",
"redshift": "CAST(a AS VARBYTE(4))",
"snowflake": "CAST(a AS BINARY(4))",
"sqlite": "CAST(a AS BLOB(4))",
"spark": "CAST(a AS BINARY(4))",
"starrocks": "CAST(a AS BINARY(4))",
},
)
self.validate_all(
"CAST(a AS VARBINARY(4))",
write={
"bigquery": "CAST(a AS BYTES)",
"clickhouse": "CAST(a AS Nullable(String))",
"duckdb": "CAST(a AS BLOB(4))",
"materialize": "CAST(a AS BYTEA(4))",
"mysql": "CAST(a AS VARBINARY(4))",
"hive": "CAST(a AS BINARY(4))",
"oracle": "CAST(a AS BLOB(4))",
"postgres": "CAST(a AS BYTEA(4))",
"presto": "CAST(a AS VARBINARY(4))",
"redshift": "CAST(a AS VARBYTE(4))",
"snowflake": "CAST(a AS VARBINARY(4))",
"sqlite": "CAST(a AS BLOB(4))",
"spark": "CAST(a AS BINARY(4))",
"starrocks": "CAST(a AS VARBINARY(4))",
},
)
self.validate_all(
"CAST(MAP('a', '1') AS MAP(TEXT, TEXT))",
write={
"clickhouse": "CAST(map('a', '1') AS Map(String, Nullable(String)))",
},
)
self.validate_all(
"CAST(ARRAY(1, 2) AS ARRAY<TINYINT>)",
write={
"clickhouse": "CAST([1, 2] AS Array(Nullable(Int8)))",
},
)
self.validate_all(
"CAST((1, 2, 3, 4) AS STRUCT<a: TINYINT, b: SMALLINT, c: INT, d: BIGINT>)",
write={
"clickhouse": "CAST((1, 2, 3, 4) AS Tuple(a Nullable(Int8), b Nullable(Int16), c Nullable(Int32), d Nullable(Int64)))",
},
)
self.validate_all(
"CAST(a AS DATETIME)",
write={
"postgres": "CAST(a AS TIMESTAMP)",
"sqlite": "CAST(a AS DATETIME)",
},
)
self.validate_all(
"CAST(a AS STRING)",
write={
"bigquery": "CAST(a AS STRING)",
"drill": "CAST(a AS VARCHAR)",
"duckdb": "CAST(a AS TEXT)",
"materialize": "CAST(a AS TEXT)",
"mysql": "CAST(a AS CHAR)",
"hive": "CAST(a AS STRING)",
"oracle": "CAST(a AS CLOB)",
"postgres": "CAST(a AS TEXT)",
"presto": "CAST(a AS VARCHAR)",
"redshift": "CAST(a AS VARCHAR(MAX))",
"snowflake": "CAST(a AS TEXT)",
"spark": "CAST(a AS STRING)",
"starrocks": "CAST(a AS STRING)",
"tsql": "CAST(a AS VARCHAR(MAX))",
"doris": "CAST(a AS STRING)",
},
)
self.validate_all(
"CAST(a AS VARCHAR)",
write={
"bigquery": "CAST(a AS STRING)",
"drill": "CAST(a AS VARCHAR)",
"duckdb": "CAST(a AS TEXT)",
"materialize": "CAST(a AS VARCHAR)",
"mysql": "CAST(a AS CHAR)",
"hive": "CAST(a AS STRING)",
"oracle": "CAST(a AS VARCHAR2)",
"postgres": "CAST(a AS VARCHAR)",
"presto": "CAST(a AS VARCHAR)",
"redshift": "CAST(a AS VARCHAR)",
"snowflake": "CAST(a AS VARCHAR)",
"spark": "CAST(a AS STRING)",
"starrocks": "CAST(a AS VARCHAR)",
"tsql": "CAST(a AS VARCHAR)",
"doris": "CAST(a AS VARCHAR)",
},
)
self.validate_all(
"CAST(a AS VARCHAR(3))",
write={
"bigquery": "CAST(a AS STRING)",
"drill": "CAST(a AS VARCHAR(3))",
"duckdb": "CAST(a AS TEXT(3))",
"materialize": "CAST(a AS VARCHAR(3))",
"mysql": "CAST(a AS CHAR(3))",
"hive": "CAST(a AS VARCHAR(3))",
"oracle": "CAST(a AS VARCHAR2(3))",
"postgres": "CAST(a AS VARCHAR(3))",
"presto": "CAST(a AS VARCHAR(3))",
"redshift": "CAST(a AS VARCHAR(3))",
"snowflake": "CAST(a AS VARCHAR(3))",
"spark": "CAST(a AS VARCHAR(3))",
"starrocks": "CAST(a AS VARCHAR(3))",
"tsql": "CAST(a AS VARCHAR(3))",
"doris": "CAST(a AS VARCHAR(3))",
},
)
self.validate_all(
"CAST(a AS SMALLINT)",
write={
"bigquery": "CAST(a AS INT64)",
"drill": "CAST(a AS INTEGER)",
"duckdb": "CAST(a AS SMALLINT)",
"materialize": "CAST(a AS SMALLINT)",
"mysql": "CAST(a AS SIGNED)",
"hive": "CAST(a AS SMALLINT)",
"oracle": "CAST(a AS NUMBER)",
"postgres": "CAST(a AS SMALLINT)",
"presto": "CAST(a AS SMALLINT)",
"redshift": "CAST(a AS SMALLINT)",
"snowflake": "CAST(a AS SMALLINT)",
"spark": "CAST(a AS SMALLINT)",
"sqlite": "CAST(a AS INTEGER)",
"starrocks": "CAST(a AS SMALLINT)",
"doris": "CAST(a AS SMALLINT)",
},
)
self.validate_all(
"CAST(a AS DOUBLE)",
read={
"postgres": "CAST(a AS DOUBLE PRECISION)",
"redshift": "CAST(a AS DOUBLE PRECISION)",
},
write={
"bigquery": "CAST(a AS FLOAT64)",
"clickhouse": "CAST(a AS Nullable(Float64))",
"doris": "CAST(a AS DOUBLE)",
"drill": "CAST(a AS DOUBLE)",
"duckdb": "CAST(a AS DOUBLE)",
"materialize": "CAST(a AS DOUBLE PRECISION)",
"mysql": "CAST(a AS DOUBLE)",
"hive": "CAST(a AS DOUBLE)",
"oracle": "CAST(a AS DOUBLE PRECISION)",
"postgres": "CAST(a AS DOUBLE PRECISION)",
"presto": "CAST(a AS DOUBLE)",
"redshift": "CAST(a AS DOUBLE PRECISION)",
"snowflake": "CAST(a AS DOUBLE)",
"spark": "CAST(a AS DOUBLE)",
"starrocks": "CAST(a AS DOUBLE)",
},
)
self.validate_all(
"CAST('1 DAY' AS INTERVAL)",
write={
"postgres": "CAST('1 DAY' AS INTERVAL)",
"redshift": "CAST('1 DAY' AS INTERVAL)",
},
)
self.validate_all(
"CAST(a AS TIMESTAMP)",
write={
"starrocks": "CAST(a AS DATETIME)",
"redshift": "CAST(a AS TIMESTAMP)",
"doris": "CAST(a AS DATETIME)",
"mysql": "CAST(a AS DATETIME)",
},
)
self.validate_all(
"CAST(a AS TIMESTAMPTZ)",
write={
"starrocks": "TIMESTAMP(a)",
"redshift": "CAST(a AS TIMESTAMP WITH TIME ZONE)",
"doris": "CAST(a AS DATETIME)",
"mysql": "TIMESTAMP(a)",
},
)
self.validate_all("CAST(a AS TINYINT)", write={"oracle": "CAST(a AS NUMBER)"})
self.validate_all("CAST(a AS SMALLINT)", write={"oracle": "CAST(a AS NUMBER)"})
self.validate_all("CAST(a AS BIGINT)", write={"oracle": "CAST(a AS NUMBER)"})
self.validate_all("CAST(a AS INT)", write={"oracle": "CAST(a AS NUMBER)"})
self.validate_all(
"CAST(a AS DECIMAL)",
read={"oracle": "CAST(a AS NUMBER)"},
write={"oracle": "CAST(a AS NUMBER)"},
)
self.validate_all(
"CAST('127.0.0.1/32' AS INET)",
read={"postgres": "INET '127.0.0.1/32'"},
)
def test_ddl(self):
self.validate_all(
"CREATE TABLE a LIKE b",
write={
"": "CREATE TABLE a LIKE b",
"bigquery": "CREATE TABLE a LIKE b",
"clickhouse": "CREATE TABLE a AS b",
"databricks": "CREATE TABLE a LIKE b",
"doris": "CREATE TABLE a LIKE b",
"drill": "CREATE TABLE a AS SELECT * FROM b LIMIT 0",
"duckdb": "CREATE TABLE a AS SELECT * FROM b LIMIT 0",
"hive": "CREATE TABLE a LIKE b",
"mysql": "CREATE TABLE a LIKE b",
"oracle": "CREATE TABLE a LIKE b",
"postgres": "CREATE TABLE a (LIKE b)",
"presto": "CREATE TABLE a (LIKE b)",
"redshift": "CREATE TABLE a (LIKE b)",
"snowflake": "CREATE TABLE a LIKE b",
"spark": "CREATE TABLE a LIKE b",
"sqlite": "CREATE TABLE a AS SELECT * FROM b LIMIT 0",
"trino": "CREATE TABLE a (LIKE b)",
"tsql": "SELECT TOP 0 * INTO a FROM b AS temp",
},
)
def test_heredoc_strings(self):
for dialect in ("clickhouse", "postgres", "redshift"):
# Invalid matching tag
with self.assertRaises(TokenError):
parse_one("SELECT $tag1$invalid heredoc string$tag2$", dialect=dialect)
# Unmatched tag
with self.assertRaises(TokenError):
parse_one("SELECT $tag1$invalid heredoc string", dialect=dialect)
# Without tag
self.validate_all(
"SELECT 'this is a heredoc string'",
read={
dialect: "SELECT $$this is a heredoc string$$",
},
)
self.validate_all(
"SELECT ''",
read={
dialect: "SELECT $$$$",
},
)
# With tag
self.validate_all(
"SELECT 'this is also a heredoc string'",
read={
dialect: "SELECT $foo$this is also a heredoc string$foo$",
},
)
self.validate_all(
"SELECT ''",
read={
dialect: "SELECT $foo$$foo$",
},
)
def test_decode(self):
self.validate_identity("DECODE(bin, charset)")
self.validate_all(
"SELECT DECODE(a, 1, 'one')",
write={
"": "SELECT CASE WHEN a = 1 THEN 'one' END",
"oracle": "SELECT CASE WHEN a = 1 THEN 'one' END",
"redshift": "SELECT CASE WHEN a = 1 THEN 'one' END",
"snowflake": "SELECT CASE WHEN a = 1 THEN 'one' END",
"spark": "SELECT CASE WHEN a = 1 THEN 'one' END",
},
)
self.validate_all(
"SELECT DECODE(a, 1, 'one', 'default')",
write={
"": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END",
"oracle": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END",
"redshift": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END",
"snowflake": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END",
"spark": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END",
},
)
self.validate_all(
"SELECT DECODE(a, NULL, 'null')",
write={
"": "SELECT CASE WHEN a IS NULL THEN 'null' END",
"oracle": "SELECT CASE WHEN a IS NULL THEN 'null' END",
"redshift": "SELECT CASE WHEN a IS NULL THEN 'null' END",
"snowflake": "SELECT CASE WHEN a IS NULL THEN 'null' END",
"spark": "SELECT CASE WHEN a IS NULL THEN 'null' END",
},
)
self.validate_all(
"SELECT DECODE(a, b, c)",
write={
"": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END",
"oracle": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END",
"redshift": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END",
"snowflake": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END",
"spark": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END",
},
)
self.validate_all(
"SELECT DECODE(tbl.col, 'some_string', 'foo')",
write={
"": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END",
"oracle": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END",
"redshift": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END",
"snowflake": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END",
"spark": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END",
},
)
def test_if_null(self):
self.validate_all(
"SELECT IFNULL(1, NULL) FROM foo",
write={
"": "SELECT COALESCE(1, NULL) FROM foo",
"redshift": "SELECT COALESCE(1, NULL) FROM foo",
"postgres": "SELECT COALESCE(1, NULL) FROM foo",
"mysql": "SELECT COALESCE(1, NULL) FROM foo",
"duckdb": "SELECT COALESCE(1, NULL) FROM foo",
"spark": "SELECT COALESCE(1, NULL) FROM foo",
"bigquery": "SELECT COALESCE(1, NULL) FROM foo",
"presto": "SELECT COALESCE(1, NULL) FROM foo",
},
)
def test_nvl2(self):
self.validate_all(
"SELECT NVL2(a, b, c)",
write={
"": "SELECT NVL2(a, b, c)",
"bigquery": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"clickhouse": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"databricks": "SELECT NVL2(a, b, c)",
"doris": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"drill": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"duckdb": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"hive": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"mysql": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"oracle": "SELECT NVL2(a, b, c)",
"postgres": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"presto": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"redshift": "SELECT NVL2(a, b, c)",
"snowflake": "SELECT NVL2(a, b, c)",
"spark": "SELECT NVL2(a, b, c)",
"spark2": "SELECT NVL2(a, b, c)",
"sqlite": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"starrocks": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"teradata": "SELECT NVL2(a, b, c)",
"trino": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
"tsql": "SELECT CASE WHEN NOT a IS NULL THEN b ELSE c END",
},
)
self.validate_all(
"SELECT NVL2(a, b)",
write={
"": "SELECT NVL2(a, b)",
"bigquery": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"clickhouse": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"databricks": "SELECT NVL2(a, b)",
"doris": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"drill": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"duckdb": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"hive": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"mysql": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"oracle": "SELECT NVL2(a, b)",
"postgres": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"presto": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"redshift": "SELECT NVL2(a, b)",
"snowflake": "SELECT NVL2(a, b)",
"spark": "SELECT NVL2(a, b)",
"spark2": "SELECT NVL2(a, b)",
"sqlite": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"starrocks": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"teradata": "SELECT NVL2(a, b)",
"trino": "SELECT CASE WHEN NOT a IS NULL THEN b END",
"tsql": "SELECT CASE WHEN NOT a IS NULL THEN b END",
},
)
def test_time(self):
self.validate_all(
"STR_TO_TIME(x, '%Y-%m-%dT%H:%M:%S')",
read={
"duckdb": "STRPTIME(x, '%Y-%m-%dT%H:%M:%S')",
},
write={
"mysql": "STR_TO_DATE(x, '%Y-%m-%dT%T')",
"duckdb": "STRPTIME(x, '%Y-%m-%dT%H:%M:%S')",
"hive": "CAST(FROM_UNIXTIME(UNIX_TIMESTAMP(x, 'yyyy-MM-ddTHH:mm:ss')) AS TIMESTAMP)",
"presto": "DATE_PARSE(x, '%Y-%m-%dT%T')",
"drill": "TO_TIMESTAMP(x, 'yyyy-MM-dd''T''HH:mm:ss')",
"redshift": "TO_TIMESTAMP(x, 'YYYY-MM-DDTHH24:MI:SS')",
"spark": "TO_TIMESTAMP(x, 'yyyy-MM-ddTHH:mm:ss')",
},
)
self.validate_all(
"STR_TO_TIME('2020-01-01', '%Y-%m-%d')",
write={
"drill": "TO_TIMESTAMP('2020-01-01', 'yyyy-MM-dd')",
"duckdb": "STRPTIME('2020-01-01', '%Y-%m-%d')",
"hive": "CAST('2020-01-01' AS TIMESTAMP)",
"oracle": "TO_TIMESTAMP('2020-01-01', 'YYYY-MM-DD')",
"postgres": "TO_TIMESTAMP('2020-01-01', 'YYYY-MM-DD')",
"presto": "DATE_PARSE('2020-01-01', '%Y-%m-%d')",
"redshift": "TO_TIMESTAMP('2020-01-01', 'YYYY-MM-DD')",
"spark": "TO_TIMESTAMP('2020-01-01', 'yyyy-MM-dd')",
},
)
self.validate_all(
"STR_TO_TIME(x, '%y')",
write={
"drill": "TO_TIMESTAMP(x, 'yy')",
"duckdb": "STRPTIME(x, '%y')",
"hive": "CAST(FROM_UNIXTIME(UNIX_TIMESTAMP(x, 'yy')) AS TIMESTAMP)",
"materialize": "TO_TIMESTAMP(x, 'YY')",
"presto": "DATE_PARSE(x, '%y')",
"oracle": "TO_TIMESTAMP(x, 'YY')",
"postgres": "TO_TIMESTAMP(x, 'YY')",
"redshift": "TO_TIMESTAMP(x, 'YY')",
"spark": "TO_TIMESTAMP(x, 'yy')",
},
)
self.validate_all(
"STR_TO_UNIX('2020-01-01', '%Y-%m-%d')",
write={
"duckdb": "EPOCH(STRPTIME('2020-01-01', '%Y-%m-%d'))",
"hive": "UNIX_TIMESTAMP('2020-01-01', 'yyyy-MM-dd')",
"presto": "TO_UNIXTIME(COALESCE(TRY(DATE_PARSE(CAST('2020-01-01' AS VARCHAR), '%Y-%m-%d')), PARSE_DATETIME(DATE_FORMAT(CAST('2020-01-01' AS TIMESTAMP), '%Y-%m-%d'), 'yyyy-MM-dd')))",
"starrocks": "UNIX_TIMESTAMP('2020-01-01', '%Y-%m-%d')",
"doris": "UNIX_TIMESTAMP('2020-01-01', '%Y-%m-%d')",
},
)
self.validate_all(
"TIME_STR_TO_DATE('2020-01-01')",
write={
"drill": "CAST('2020-01-01' AS DATE)",
"duckdb": "CAST('2020-01-01' AS DATE)",
"hive": "TO_DATE('2020-01-01')",
"presto": "CAST('2020-01-01' AS TIMESTAMP)",
"starrocks": "TO_DATE('2020-01-01')",
"doris": "TO_DATE('2020-01-01')",
},
)
self.validate_all(
"TIME_STR_TO_TIME('2020-01-01')",
write={
"bigquery": "CAST('2020-01-01' AS DATETIME)",
"databricks": "CAST('2020-01-01' AS TIMESTAMP)",
"duckdb": "CAST('2020-01-01' AS TIMESTAMP)",
"tsql": "CAST('2020-01-01' AS DATETIME2)",
"mysql": "CAST('2020-01-01' AS DATETIME)",
"postgres": "CAST('2020-01-01' AS TIMESTAMP)",
"redshift": "CAST('2020-01-01' AS TIMESTAMP)",
"snowflake": "CAST('2020-01-01' AS TIMESTAMP)",
"spark": "CAST('2020-01-01' AS TIMESTAMP)",
"trino": "CAST('2020-01-01' AS TIMESTAMP)",
"clickhouse": "CAST('2020-01-01' AS DateTime64(6))",
"drill": "CAST('2020-01-01' AS TIMESTAMP)",
"hive": "CAST('2020-01-01' AS TIMESTAMP)",
"presto": "CAST('2020-01-01' AS TIMESTAMP)",
"sqlite": "'2020-01-01'",
"doris": "CAST('2020-01-01' AS DATETIME)",
},
)
self.validate_all(
"TIME_STR_TO_TIME('2020-01-01 12:13:14.123456+00:00')",
write={
"mysql": "CAST('2020-01-01 12:13:14.123456+00:00' AS DATETIME(6))",
"trino": "CAST('2020-01-01 12:13:14.123456+00:00' AS TIMESTAMP(6))",
"presto": "CAST('2020-01-01 12:13:14.123456+00:00' AS TIMESTAMP)",
},
)
self.validate_all(
"TIME_STR_TO_TIME('2020-01-01 12:13:14.123-08:00', 'America/Los_Angeles')",
write={
"mysql": "TIMESTAMP('2020-01-01 12:13:14.123-08:00')",
"trino": "CAST('2020-01-01 12:13:14.123-08:00' AS TIMESTAMP(3) WITH TIME ZONE)",
"presto": "CAST('2020-01-01 12:13:14.123-08:00' AS TIMESTAMP WITH TIME ZONE)",
},
)
self.validate_all(
"TIME_STR_TO_TIME('2020-01-01 12:13:14-08:00', 'America/Los_Angeles')",
write={
"bigquery": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMP)",
"databricks": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMP)",
"duckdb": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMPTZ)",
"tsql": "CAST('2020-01-01 12:13:14-08:00' AS DATETIMEOFFSET) AT TIME ZONE 'UTC'",
"mysql": "TIMESTAMP('2020-01-01 12:13:14-08:00')",
"postgres": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMPTZ)",
"redshift": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMP WITH TIME ZONE)",
"snowflake": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMPTZ)",
"spark": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMP)",
"trino": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMP WITH TIME ZONE)",
"clickhouse": "CAST('2020-01-01 12:13:14' AS DateTime64(6, 'America/Los_Angeles'))",
"drill": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMP)",
"hive": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMP)",
"presto": "CAST('2020-01-01 12:13:14-08:00' AS TIMESTAMP WITH TIME ZONE)",
"sqlite": "'2020-01-01 12:13:14-08:00'",
"doris": "CAST('2020-01-01 12:13:14-08:00' AS DATETIME)",
},
)
self.validate_all(
"TIME_STR_TO_TIME(col, 'America/Los_Angeles')",
write={
"bigquery": "CAST(col AS TIMESTAMP)",
"databricks": "CAST(col AS TIMESTAMP)",
"duckdb": "CAST(col AS TIMESTAMPTZ)",
"tsql": "CAST(col AS DATETIMEOFFSET) AT TIME ZONE 'UTC'",
"mysql": "TIMESTAMP(col)",
"postgres": "CAST(col AS TIMESTAMPTZ)",
"redshift": "CAST(col AS TIMESTAMP WITH TIME ZONE)",
"snowflake": "CAST(col AS TIMESTAMPTZ)",
"spark": "CAST(col AS TIMESTAMP)",
"trino": "CAST(col AS TIMESTAMP WITH TIME ZONE)",
"clickhouse": "CAST(col AS DateTime64(6, 'America/Los_Angeles'))",
"drill": "CAST(col AS TIMESTAMP)",
"hive": "CAST(col AS TIMESTAMP)",
"presto": "CAST(col AS TIMESTAMP WITH TIME ZONE)",
"sqlite": "col",
"doris": "CAST(col AS DATETIME)",
},
)
self.validate_all(
"TIME_STR_TO_UNIX('2020-01-01')",
write={
"duckdb": "EPOCH(CAST('2020-01-01' AS TIMESTAMP))",
"hive": "UNIX_TIMESTAMP('2020-01-01')",
"mysql": "UNIX_TIMESTAMP('2020-01-01')",
"presto": "TO_UNIXTIME(DATE_PARSE('2020-01-01', '%Y-%m-%d %T'))",
"doris": "UNIX_TIMESTAMP('2020-01-01')",
},
)
self.validate_all(
"TIME_TO_STR(x, '%Y-%m-%d')",
write={
"bigquery": "FORMAT_DATE('%Y-%m-%d', x)",
"drill": "TO_CHAR(x, 'yyyy-MM-dd')",
"duckdb": "STRFTIME(x, '%Y-%m-%d')",
"hive": "DATE_FORMAT(x, 'yyyy-MM-dd')",
"materialize": "TO_CHAR(x, 'YYYY-MM-DD')",
"oracle": "TO_CHAR(x, 'YYYY-MM-DD')",
"postgres": "TO_CHAR(x, 'YYYY-MM-DD')",
"presto": "DATE_FORMAT(x, '%Y-%m-%d')",
"redshift": "TO_CHAR(x, 'YYYY-MM-DD')",
"doris": "DATE_FORMAT(x, '%Y-%m-%d')",
},
)
self.validate_all(
"TIME_TO_STR(a, '%Y-%m-%d %H:%M:%S.%f')",
write={
"redshift": "TO_CHAR(a, 'YYYY-MM-DD HH24:MI:SS.US')",
"tsql": "FORMAT(a, 'yyyy-MM-dd HH:mm:ss.ffffff')",
},
)
self.validate_all(
"TIME_TO_TIME_STR(x)",
write={
"drill": "CAST(x AS VARCHAR)",
"duckdb": "CAST(x AS TEXT)",
"hive": "CAST(x AS STRING)",
"presto": "CAST(x AS VARCHAR)",
"redshift": "CAST(x AS VARCHAR(MAX))",
"doris": "CAST(x AS STRING)",
},
)
self.validate_all(
"TIME_TO_UNIX(x)",
write={
"drill": "UNIX_TIMESTAMP(x)",
"duckdb": "EPOCH(x)",
"hive": "UNIX_TIMESTAMP(x)",
"presto": "TO_UNIXTIME(x)",
"doris": "UNIX_TIMESTAMP(x)",
},
)
self.validate_all(
"TS_OR_DS_TO_DATE_STR(x)",
write={
"duckdb": "SUBSTRING(CAST(x AS TEXT), 1, 10)",
"hive": "SUBSTRING(CAST(x AS STRING), 1, 10)",
"presto": "SUBSTRING(CAST(x AS VARCHAR), 1, 10)",
"doris": "SUBSTRING(CAST(x AS STRING), 1, 10)",
},
)
self.validate_all(
"TS_OR_DS_TO_DATE(x)",
write={
"bigquery": "CAST(x AS DATE)",
"duckdb": "CAST(x AS DATE)",
"hive": "TO_DATE(x)",
"materialize": "CAST(x AS DATE)",
"postgres": "CAST(x AS DATE)",
"presto": "CAST(CAST(x AS TIMESTAMP) AS DATE)",
"snowflake": "TO_DATE(x)",
"doris": "TO_DATE(x)",
"mysql": "DATE(x)",
},
)
self.validate_all(
"TS_OR_DS_TO_DATE(x, '%-d')",
write={
"duckdb": "CAST(STRPTIME(x, '%-d') AS DATE)",
"hive": "TO_DATE(x, 'd')",
"presto": "CAST(DATE_PARSE(x, '%e') AS DATE)",
"spark": "TO_DATE(x, 'd')",
},
)
self.validate_all(
"UNIX_TO_STR(x, y)",
write={
"duckdb": "STRFTIME(TO_TIMESTAMP(x), y)",
"hive": "FROM_UNIXTIME(x, y)",
"presto": "DATE_FORMAT(FROM_UNIXTIME(x), y)",
"starrocks": "FROM_UNIXTIME(x, y)",
"doris": "FROM_UNIXTIME(x, y)",
},
)
self.validate_all(
"UNIX_TO_TIME(x)",
write={
"duckdb": "TO_TIMESTAMP(x)",
"hive": "FROM_UNIXTIME(x)",
"oracle": "TO_DATE('1970-01-01', 'YYYY-MM-DD') + (x / 86400)",
"materialize": "TO_TIMESTAMP(x)",
"postgres": "TO_TIMESTAMP(x)",
"presto": "FROM_UNIXTIME(x)",
"starrocks": "FROM_UNIXTIME(x)",
"doris": "FROM_UNIXTIME(x)",
},
)
self.validate_all(
"UNIX_TO_TIME_STR(x)",
write={
"duckdb": "CAST(TO_TIMESTAMP(x) AS TEXT)",
"hive": "FROM_UNIXTIME(x)",
"presto": "CAST(FROM_UNIXTIME(x) AS VARCHAR)",
},
)
self.validate_all(
"DATE_TO_DATE_STR(x)",
write={
"drill": "CAST(x AS VARCHAR)",
"duckdb": "CAST(x AS TEXT)",
"hive": "CAST(x AS STRING)",
"presto": "CAST(x AS VARCHAR)",
},
)
self.validate_all(
"DATE_TO_DI(x)",
write={
"drill": "CAST(TO_DATE(x, 'yyyyMMdd') AS INT)",
"duckdb": "CAST(STRFTIME(x, '%Y%m%d') AS INT)",
"hive": "CAST(DATE_FORMAT(x, 'yyyyMMdd') AS INT)",
"presto": "CAST(DATE_FORMAT(x, '%Y%m%d') AS INT)",
},
)
self.validate_all(
"DI_TO_DATE(x)",
write={
"drill": "TO_DATE(CAST(x AS VARCHAR), 'yyyyMMdd')",
"duckdb": "CAST(STRPTIME(CAST(x AS TEXT), '%Y%m%d') AS DATE)",
"hive": "TO_DATE(CAST(x AS STRING), 'yyyyMMdd')",
"presto": "CAST(DATE_PARSE(CAST(x AS VARCHAR), '%Y%m%d') AS DATE)",
},
)
self.validate_all(
"TS_OR_DI_TO_DI(x)",
write={
"duckdb": "CAST(SUBSTR(REPLACE(CAST(x AS TEXT), '-', ''), 1, 8) AS INT)",
"hive": "CAST(SUBSTR(REPLACE(CAST(x AS STRING), '-', ''), 1, 8) AS INT)",
"presto": "CAST(SUBSTR(REPLACE(CAST(x AS VARCHAR), '-', ''), 1, 8) AS INT)",
"spark": "CAST(SUBSTR(REPLACE(CAST(x AS STRING), '-', ''), 1, 8) AS INT)",
},
)
self.validate_all(
"DATE_ADD(x, 1, 'DAY')",
read={
"snowflake": "DATEADD('DAY', 1, x)",
},
write={
"bigquery": "DATE_ADD(x, INTERVAL 1 DAY)",
"drill": "DATE_ADD(x, INTERVAL 1 DAY)",
"duckdb": "x + INTERVAL 1 DAY",
"hive": "DATE_ADD(x, 1)",
"materialize": "x + INTERVAL '1 DAY'",
"mysql": "DATE_ADD(x, INTERVAL 1 DAY)",
"postgres": "x + INTERVAL '1 DAY'",
"presto": "DATE_ADD('DAY', 1, x)",
"snowflake": "DATEADD(DAY, 1, x)",
"spark": "DATE_ADD(x, 1)",
"sqlite": "DATE(x, '1 DAY')",
"starrocks": "DATE_ADD(x, INTERVAL 1 DAY)",
"tsql": "DATEADD(DAY, 1, x)",
"doris": "DATE_ADD(x, INTERVAL 1 DAY)",
},
)
self.validate_all(
"DATE_ADD(x, 1)",
write={
"bigquery": "DATE_ADD(x, INTERVAL 1 DAY)",
"drill": "DATE_ADD(x, INTERVAL 1 DAY)",
"duckdb": "x + INTERVAL 1 DAY",
"hive": "DATE_ADD(x, 1)",
"mysql": "DATE_ADD(x, INTERVAL 1 DAY)",
"presto": "DATE_ADD('DAY', 1, x)",
"spark": "DATE_ADD(x, 1)",
"starrocks": "DATE_ADD(x, INTERVAL 1 DAY)",
"doris": "DATE_ADD(x, INTERVAL 1 DAY)",
},
)
self.validate_all(
"DATE_TRUNC('DAY', x)",
read={
"bigquery": "DATE_TRUNC(x, day)",
"spark": "TRUNC(x, 'day')",
},
write={
"bigquery": "DATE_TRUNC(x, DAY)",
"duckdb": "DATE_TRUNC('DAY', x)",
"mysql": "DATE(x)",
"presto": "DATE_TRUNC('DAY', x)",
"materialize": "DATE_TRUNC('DAY', x)",
"postgres": "DATE_TRUNC('DAY', x)",
"snowflake": "DATE_TRUNC('DAY', x)",
"starrocks": "DATE_TRUNC('DAY', x)",
"spark": "TRUNC(x, 'DAY')",
"doris": "DATE_TRUNC(x, 'DAY')",
},
)
self.validate_all(
"TIMESTAMP_TRUNC(x, DAY)",
read={
"bigquery": "TIMESTAMP_TRUNC(x, day)",
"duckdb": "DATE_TRUNC('day', x)",
"materialize": "DATE_TRUNC('day', x)",
"presto": "DATE_TRUNC('day', x)",
"postgres": "DATE_TRUNC('day', x)",
"snowflake": "DATE_TRUNC('day', x)",
"starrocks": "DATE_TRUNC('day', x)",
"spark": "DATE_TRUNC('day', x)",
"doris": "DATE_TRUNC('day', x)",
},
)
self.validate_all(
"DATE_TRUNC('DAY', CAST(x AS DATE))",
read={
"presto": "DATE_TRUNC('DAY', x::DATE)",
"snowflake": "DATE_TRUNC('DAY', x::DATE)",
},
)
self.validate_all(
"TIMESTAMP_TRUNC(CAST(x AS DATE), DAY)",
read={"postgres": "DATE_TRUNC('day', x::DATE)"},
)
self.validate_all(
"TIMESTAMP_TRUNC(CAST(x AS DATE), DAY)",
read={"starrocks": "DATE_TRUNC('day', x::DATE)"},
)
self.validate_all(
"DATE_TRUNC('week', x)",
write={
"mysql": "STR_TO_DATE(CONCAT(YEAR(x), ' ', WEEK(x, 1), ' 1'), '%Y %u %w')",
},
)
self.validate_all(
"DATE_TRUNC('month', x)",
write={
"mysql": "STR_TO_DATE(CONCAT(YEAR(x), ' ', MONTH(x), ' 1'), '%Y %c %e')",
},
)
self.validate_all(
"DATE_TRUNC('quarter', x)",
write={
"mysql": "STR_TO_DATE(CONCAT(YEAR(x), ' ', QUARTER(x) * 3 - 2, ' 1'), '%Y %c %e')",
},
)
self.validate_all(
"DATE_TRUNC('year', x)",
write={
"mysql": "STR_TO_DATE(CONCAT(YEAR(x), ' 1 1'), '%Y %c %e')",
},
)
self.validate_all(
"DATE_TRUNC('millenium', x)",
write={
"mysql": UnsupportedError,
},
)
self.validate_all(
"DATE_TRUNC('YEAR', x)",
read={
"bigquery": "DATE_TRUNC(x, year)",
"spark": "TRUNC(x, 'year')",
},
write={
"bigquery": "DATE_TRUNC(x, YEAR)",
"materialize": "DATE_TRUNC('YEAR', x)",
"mysql": "STR_TO_DATE(CONCAT(YEAR(x), ' 1 1'), '%Y %c %e')",
"postgres": "DATE_TRUNC('YEAR', x)",
"snowflake": "DATE_TRUNC('YEAR', x)",
"starrocks": "DATE_TRUNC('YEAR', x)",
"spark": "TRUNC(x, 'YEAR')",
"doris": "DATE_TRUNC(x, 'YEAR')",