Merging upstream version 10.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

11 files changed, 607 insertions, 65 deletions

diff --git a/tests/dialects/test_bigquery.py b/tests/dialects/test_bigquery.py
index 050d41e..a0ebc45 100644
--- a/tests/dialects/test_bigquery.py
+++ b/tests/dialects/test_bigquery.py
@@ -157,6 +157,14 @@ class TestBigQuery(Validator):
             },
         )
 
+        self.validate_all(
+            "DIV(x, y)",
+            write={
+                "bigquery": "DIV(x, y)",
+                "duckdb": "CAST(x / y AS INT)",
+            },
+        )
+
         self.validate_identity(
             "SELECT ROW() OVER (y ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING) FROM x WINDOW y AS (PARTITION BY CATEGORY)"
         )
@@ -284,4 +292,6 @@ class TestBigQuery(Validator):
             "CREATE TEMPORARY FUNCTION a(x FLOAT64, y FLOAT64) RETURNS FLOAT64 NOT DETERMINISTIC LANGUAGE js AS 'return x*y;'"
         )
         self.validate_identity("CREATE TEMPORARY FUNCTION a(x FLOAT64, y FLOAT64) AS ((x + 4) / y)")
-        self.validate_identity("CREATE TABLE FUNCTION a(x INT64) RETURNS TABLE <q STRING, r INT64> AS SELECT s, t")
+        self.validate_identity(
+            "CREATE TABLE FUNCTION a(x INT64) RETURNS TABLE <q STRING, r INT64> AS SELECT s, t"
+        )
diff --git a/tests/dialects/test_clickhouse.py b/tests/dialects/test_clickhouse.py
index 715bf10..efb41bb 100644
--- a/tests/dialects/test_clickhouse.py
+++ b/tests/dialects/test_clickhouse.py
@@ -18,7 +18,6 @@ class TestClickhouse(Validator):
                 "spark": "SELECT fname, lname, age FROM person ORDER BY age DESC NULLS FIRST, fname NULLS LAST, lname NULLS LAST",
             },
         )
-
         self.validate_all(
             "CAST(1 AS NULLABLE(Int64))",
             write={
@@ -31,3 +30,7 @@ class TestClickhouse(Validator):
                 "clickhouse": "CAST(1 AS Nullable(DateTime64(6, 'UTC')))",
             },
         )
+        self.validate_all(
+            "SELECT x #! comment",
+            write={"": "SELECT x /* comment */"},
+        )
diff --git a/tests/dialects/test_databricks.py b/tests/dialects/test_databricks.py
index e242e73..2168f55 100644
--- a/tests/dialects/test_databricks.py
+++ b/tests/dialects/test_databricks.py
@@ -22,7 +22,8 @@ class TestDatabricks(Validator):
             },
         )
         self.validate_all(
-            "SELECT DATEDIFF('end', 'start')", write={"databricks": "SELECT DATEDIFF(DAY, 'start', 'end')"}
+            "SELECT DATEDIFF('end', 'start')",
+            write={"databricks": "SELECT DATEDIFF(DAY, 'start', 'end')"},
         )
         self.validate_all(
             "SELECT DATE_ADD('2020-01-01', 1)",
diff --git a/tests/dialects/test_dialect.py b/tests/dialects/test_dialect.py
index 3b837df..1913f53 100644
--- a/tests/dialects/test_dialect.py
+++ b/tests/dialects/test_dialect.py
@@ -1,20 +1,18 @@
 import unittest
 
-from sqlglot import (
-    Dialect,
-    Dialects,
-    ErrorLevel,
-    UnsupportedError,
-    parse_one,
-    transpile,
-)
+from sqlglot import Dialect, Dialects, ErrorLevel, UnsupportedError, parse_one
 
 
 class Validator(unittest.TestCase):
     dialect = None
 
-    def validate_identity(self, sql):
-        self.assertEqual(transpile(sql, read=self.dialect, write=self.dialect)[0], sql)
+    def parse_one(self, sql):
+        return parse_one(sql, read=self.dialect)
+
+    def validate_identity(self, sql, write_sql=None):
+        expression = self.parse_one(sql)
+        self.assertEqual(write_sql or sql, expression.sql(dialect=self.dialect))
+        return expression
 
     def validate_all(self, sql, read=None, write=None, pretty=False):
         """
@@ -28,12 +26,14 @@ class Validator(unittest.TestCase):
             read (dict): Mapping of dialect -> SQL
             write (dict): Mapping of dialect -> SQL
         """
-        expression = parse_one(sql, read=self.dialect)
+        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),
+                    parse_one(read_sql, read_dialect).sql(
+                        self.dialect, unsupported_level=ErrorLevel.IGNORE, pretty=pretty
+                    ),
                     sql,
                 )
 
@@ -83,10 +83,6 @@ class TestDialect(Validator):
         )
         self.validate_all(
             "CAST(a AS BINARY(4))",
-            read={
-                "presto": "CAST(a AS VARBINARY(4))",
-                "sqlite": "CAST(a AS VARBINARY(4))",
-            },
             write={
                 "bigquery": "CAST(a AS BINARY(4))",
                 "clickhouse": "CAST(a AS BINARY(4))",
@@ -104,6 +100,24 @@ class TestDialect(Validator):
             },
         )
         self.validate_all(
+            "CAST(a AS VARBINARY(4))",
+            write={
+                "bigquery": "CAST(a AS VARBINARY(4))",
+                "clickhouse": "CAST(a AS VARBINARY(4))",
+                "duckdb": "CAST(a AS VARBINARY(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(TEXT, TEXT))",
@@ -472,45 +486,57 @@ class TestDialect(Validator):
             },
         )
         self.validate_all(
-            "DATE_TRUNC(x, 'day')",
+            "DATE_TRUNC('day', x)",
             write={
                 "mysql": "DATE(x)",
-                "starrocks": "DATE(x)",
             },
         )
         self.validate_all(
-            "DATE_TRUNC(x, 'week')",
+            "DATE_TRUNC('week', x)",
             write={
                 "mysql": "STR_TO_DATE(CONCAT(YEAR(x), ' ', WEEK(x, 1), ' 1'), '%Y %u %w')",
-                "starrocks": "STR_TO_DATE(CONCAT(YEAR(x), ' ', WEEK(x, 1), ' 1'), '%Y %u %w')",
             },
         )
         self.validate_all(
-            "DATE_TRUNC(x, 'month')",
+            "DATE_TRUNC('month', x)",
             write={
                 "mysql": "STR_TO_DATE(CONCAT(YEAR(x), ' ', MONTH(x), ' 1'), '%Y %c %e')",
-                "starrocks": "STR_TO_DATE(CONCAT(YEAR(x), ' ', MONTH(x), ' 1'), '%Y %c %e')",
             },
         )
         self.validate_all(
-            "DATE_TRUNC(x, 'quarter')",
+            "DATE_TRUNC('quarter', x)",
             write={
                 "mysql": "STR_TO_DATE(CONCAT(YEAR(x), ' ', QUARTER(x) * 3 - 2, ' 1'), '%Y %c %e')",
-                "starrocks": "STR_TO_DATE(CONCAT(YEAR(x), ' ', QUARTER(x) * 3 - 2, ' 1'), '%Y %c %e')",
             },
         )
         self.validate_all(
-            "DATE_TRUNC(x, 'year')",
+            "DATE_TRUNC('year', x)",
             write={
                 "mysql": "STR_TO_DATE(CONCAT(YEAR(x), ' 1 1'), '%Y %c %e')",
-                "starrocks": "STR_TO_DATE(CONCAT(YEAR(x), ' 1 1'), '%Y %c %e')",
             },
         )
         self.validate_all(
-            "DATE_TRUNC(x, 'millenium')",
+            "DATE_TRUNC('millenium', x)",
             write={
                 "mysql": UnsupportedError,
-                "starrocks": UnsupportedError,
+            },
+        )
+        self.validate_all(
+            "DATE_TRUNC('year', x)",
+            read={
+                "starrocks": "DATE_TRUNC('year', x)",
+            },
+            write={
+                "starrocks": "DATE_TRUNC('year', x)",
+            },
+        )
+        self.validate_all(
+            "DATE_TRUNC(x, year)",
+            read={
+                "bigquery": "DATE_TRUNC(x, year)",
+            },
+            write={
+                "bigquery": "DATE_TRUNC(x, year)",
             },
         )
         self.validate_all(
@@ -564,6 +590,22 @@ class TestDialect(Validator):
                 "spark": "DATE_ADD(CAST('2020-01-01' AS DATE), 1)",
             },
         )
+        self.validate_all(
+            "TIMESTAMP '2022-01-01'",
+            write={
+                "mysql": "CAST('2022-01-01' AS TIMESTAMP)",
+                "starrocks": "CAST('2022-01-01' AS DATETIME)",
+                "hive": "CAST('2022-01-01' AS TIMESTAMP)",
+            },
+        )
+        self.validate_all(
+            "TIMESTAMP('2022-01-01')",
+            write={
+                "mysql": "TIMESTAMP('2022-01-01')",
+                "starrocks": "TIMESTAMP('2022-01-01')",
+                "hive": "TIMESTAMP('2022-01-01')",
+            },
+        )
 
         for unit in ("DAY", "MONTH", "YEAR"):
             self.validate_all(
@@ -1002,7 +1044,10 @@ class TestDialect(Validator):
         )
 
     def test_limit(self):
-        self.validate_all("SELECT * FROM data LIMIT 10, 20", write={"sqlite": "SELECT * FROM data LIMIT 10 OFFSET 20"})
+        self.validate_all(
+            "SELECT * FROM data LIMIT 10, 20",
+            write={"sqlite": "SELECT * FROM data LIMIT 10 OFFSET 20"},
+        )
         self.validate_all(
             "SELECT x FROM y LIMIT 10",
             write={
@@ -1132,3 +1177,56 @@ class TestDialect(Validator):
                 "sqlite": "WITH cte1 AS (SELECT a, b FROM table1), cte2 AS (SELECT c, e AS d FROM table2) SELECT b, d AS dd FROM cte1 AS t JOIN cte2 WHERE cte1.a = cte2.c",
             },
         )
+
+    def test_nullsafe_eq(self):
+        self.validate_all(
+            "SELECT a IS NOT DISTINCT FROM b",
+            read={
+                "mysql": "SELECT a <=> b",
+                "postgres": "SELECT a IS NOT DISTINCT FROM b",
+            },
+            write={
+                "mysql": "SELECT a <=> b",
+                "postgres": "SELECT a IS NOT DISTINCT FROM b",
+            },
+        )
+
+    def test_nullsafe_neq(self):
+        self.validate_all(
+            "SELECT a IS DISTINCT FROM b",
+            read={
+                "postgres": "SELECT a IS DISTINCT FROM b",
+            },
+            write={
+                "mysql": "SELECT NOT a <=> b",
+                "postgres": "SELECT a IS DISTINCT FROM b",
+            },
+        )
+
+    def test_hash_comments(self):
+        self.validate_all(
+            "SELECT 1 /* arbitrary content,,, until end-of-line */",
+            read={
+                "mysql": "SELECT 1 # arbitrary content,,, until end-of-line",
+                "bigquery": "SELECT 1 # arbitrary content,,, until end-of-line",
+                "clickhouse": "SELECT 1 #! arbitrary content,,, until end-of-line",
+            },
+        )
+        self.validate_all(
+            """/* comment1 */
+SELECT
+  x, -- comment2
+  y -- comment3""",
+            read={
+                "mysql": """SELECT # comment1
+  x, # comment2
+  y # comment3""",
+                "bigquery": """SELECT # comment1
+  x, # comment2
+  y # comment3""",
+                "clickhouse": """SELECT # comment1
+  x, # comment2
+  y # comment3""",
+            },
+            pretty=True,
+        )
diff --git a/tests/dialects/test_mysql.py b/tests/dialects/test_mysql.py
index a25871c..1ba118b 100644
--- a/tests/dialects/test_mysql.py
+++ b/tests/dialects/test_mysql.py
@@ -1,3 +1,4 @@
+from sqlglot import expressions as exp
 from tests.dialects.test_dialect import Validator
 
 
@@ -20,6 +21,52 @@ class TestMySQL(Validator):
         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 ')")
+        self.validate_identity("@@GLOBAL.max_connections")
+
+        # SET Commands
+        self.validate_identity("SET @var_name = expr")
+        self.validate_identity("SET @name = 43")
+        self.validate_identity("SET @total_tax = (SELECT SUM(tax) FROM taxable_transactions)")
+        self.validate_identity("SET GLOBAL max_connections = 1000")
+        self.validate_identity("SET @@GLOBAL.max_connections = 1000")
+        self.validate_identity("SET SESSION sql_mode = 'TRADITIONAL'")
+        self.validate_identity("SET LOCAL sql_mode = 'TRADITIONAL'")
+        self.validate_identity("SET @@SESSION.sql_mode = 'TRADITIONAL'")
+        self.validate_identity("SET @@LOCAL.sql_mode = 'TRADITIONAL'")
+        self.validate_identity("SET @@sql_mode = 'TRADITIONAL'")
+        self.validate_identity("SET sql_mode = 'TRADITIONAL'")
+        self.validate_identity("SET PERSIST max_connections = 1000")
+        self.validate_identity("SET @@PERSIST.max_connections = 1000")
+        self.validate_identity("SET PERSIST_ONLY back_log = 100")
+        self.validate_identity("SET @@PERSIST_ONLY.back_log = 100")
+        self.validate_identity("SET @@SESSION.max_join_size = DEFAULT")
+        self.validate_identity("SET @@SESSION.max_join_size = @@GLOBAL.max_join_size")
+        self.validate_identity("SET @x = 1, SESSION sql_mode = ''")
+        self.validate_identity(
+            "SET GLOBAL sort_buffer_size = 1000000, SESSION sort_buffer_size = 1000000"
+        )
+        self.validate_identity(
+            "SET @@GLOBAL.sort_buffer_size = 1000000, @@LOCAL.sort_buffer_size = 1000000"
+        )
+        self.validate_identity("SET GLOBAL max_connections = 1000, sort_buffer_size = 1000000")
+        self.validate_identity("SET @@GLOBAL.sort_buffer_size = 50000, sort_buffer_size = 1000000")
+        self.validate_identity("SET CHARACTER SET 'utf8'")
+        self.validate_identity("SET CHARACTER SET utf8")
+        self.validate_identity("SET CHARACTER SET DEFAULT")
+        self.validate_identity("SET NAMES 'utf8'")
+        self.validate_identity("SET NAMES DEFAULT")
+        self.validate_identity("SET NAMES 'utf8' COLLATE 'utf8_unicode_ci'")
+        self.validate_identity("SET NAMES utf8 COLLATE utf8_unicode_ci")
+        self.validate_identity("SET autocommit = ON")
+
+    def test_escape(self):
+        self.validate_all(
+            r"'a \' b '' '",
+            write={
+                "mysql": r"'a '' b '' '",
+                "spark": r"'a \' b \' '",
+            },
+        )
 
     def test_introducers(self):
         self.validate_all(
@@ -115,14 +162,6 @@ class TestMySQL(Validator):
             },
         )
 
-    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)",
@@ -174,3 +213,242 @@ COMMENT='客户账户表'"""
             },
             pretty=True,
         )
+
+    def test_show_simple(self):
+        for key, write_key in [
+            ("BINARY LOGS", "BINARY LOGS"),
+            ("MASTER LOGS", "BINARY LOGS"),
+            ("STORAGE ENGINES", "ENGINES"),
+            ("ENGINES", "ENGINES"),
+            ("EVENTS", "EVENTS"),
+            ("MASTER STATUS", "MASTER STATUS"),
+            ("PLUGINS", "PLUGINS"),
+            ("PRIVILEGES", "PRIVILEGES"),
+            ("PROFILES", "PROFILES"),
+            ("REPLICAS", "REPLICAS"),
+            ("SLAVE HOSTS", "REPLICAS"),
+        ]:
+            show = self.validate_identity(f"SHOW {key}", f"SHOW {write_key}")
+            self.assertIsInstance(show, exp.Show)
+            self.assertEqual(show.name, write_key)
+
+    def test_show_events(self):
+        for key in ["BINLOG", "RELAYLOG"]:
+            show = self.validate_identity(f"SHOW {key} EVENTS")
+            self.assertIsInstance(show, exp.Show)
+            self.assertEqual(show.name, f"{key} EVENTS")
+
+            show = self.validate_identity(f"SHOW {key} EVENTS IN 'log' FROM 1 LIMIT 2, 3")
+            self.assertEqual(show.text("log"), "log")
+            self.assertEqual(show.text("position"), "1")
+            self.assertEqual(show.text("limit"), "3")
+            self.assertEqual(show.text("offset"), "2")
+
+            show = self.validate_identity(f"SHOW {key} EVENTS LIMIT 1")
+            self.assertEqual(show.text("limit"), "1")
+            self.assertIsNone(show.args.get("offset"))
+
+    def test_show_like_or_where(self):
+        for key, write_key in [
+            ("CHARSET", "CHARACTER SET"),
+            ("CHARACTER SET", "CHARACTER SET"),
+            ("COLLATION", "COLLATION"),
+            ("DATABASES", "DATABASES"),
+            ("FUNCTION STATUS", "FUNCTION STATUS"),
+            ("PROCEDURE STATUS", "PROCEDURE STATUS"),
+            ("GLOBAL STATUS", "GLOBAL STATUS"),
+            ("SESSION STATUS", "STATUS"),
+            ("STATUS", "STATUS"),
+            ("GLOBAL VARIABLES", "GLOBAL VARIABLES"),
+            ("SESSION VARIABLES", "VARIABLES"),
+            ("VARIABLES", "VARIABLES"),
+        ]:
+            expected_name = write_key.strip("GLOBAL").strip()
+            template = "SHOW {}"
+            show = self.validate_identity(template.format(key), template.format(write_key))
+            self.assertIsInstance(show, exp.Show)
+            self.assertEqual(show.name, expected_name)
+
+            template = "SHOW {} LIKE '%foo%'"
+            show = self.validate_identity(template.format(key), template.format(write_key))
+            self.assertIsInstance(show, exp.Show)
+            self.assertIsInstance(show.args["like"], exp.Literal)
+            self.assertEqual(show.text("like"), "%foo%")
+
+            template = "SHOW {} WHERE Column_name LIKE '%foo%'"
+            show = self.validate_identity(template.format(key), template.format(write_key))
+            self.assertIsInstance(show, exp.Show)
+            self.assertIsInstance(show.args["where"], exp.Where)
+            self.assertEqual(show.args["where"].sql(), "WHERE Column_name LIKE '%foo%'")
+
+    def test_show_columns(self):
+        show = self.validate_identity("SHOW COLUMNS FROM tbl_name")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.name, "COLUMNS")
+        self.assertEqual(show.text("target"), "tbl_name")
+        self.assertFalse(show.args["full"])
+
+        show = self.validate_identity("SHOW FULL COLUMNS FROM tbl_name FROM db_name LIKE '%foo%'")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.text("target"), "tbl_name")
+        self.assertTrue(show.args["full"])
+        self.assertEqual(show.text("db"), "db_name")
+        self.assertIsInstance(show.args["like"], exp.Literal)
+        self.assertEqual(show.text("like"), "%foo%")
+
+    def test_show_name(self):
+        for key in [
+            "CREATE DATABASE",
+            "CREATE EVENT",
+            "CREATE FUNCTION",
+            "CREATE PROCEDURE",
+            "CREATE TABLE",
+            "CREATE TRIGGER",
+            "CREATE VIEW",
+            "FUNCTION CODE",
+            "PROCEDURE CODE",
+        ]:
+            show = self.validate_identity(f"SHOW {key} foo")
+            self.assertIsInstance(show, exp.Show)
+            self.assertEqual(show.name, key)
+            self.assertEqual(show.text("target"), "foo")
+
+    def test_show_grants(self):
+        show = self.validate_identity(f"SHOW GRANTS FOR foo")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.name, "GRANTS")
+        self.assertEqual(show.text("target"), "foo")
+
+    def test_show_engine(self):
+        show = self.validate_identity("SHOW ENGINE foo STATUS")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.name, "ENGINE")
+        self.assertEqual(show.text("target"), "foo")
+        self.assertFalse(show.args["mutex"])
+
+        show = self.validate_identity("SHOW ENGINE foo MUTEX")
+        self.assertEqual(show.name, "ENGINE")
+        self.assertEqual(show.text("target"), "foo")
+        self.assertTrue(show.args["mutex"])
+
+    def test_show_errors(self):
+        for key in ["ERRORS", "WARNINGS"]:
+            show = self.validate_identity(f"SHOW {key}")
+            self.assertIsInstance(show, exp.Show)
+            self.assertEqual(show.name, key)
+
+            show = self.validate_identity(f"SHOW {key} LIMIT 2, 3")
+            self.assertEqual(show.text("limit"), "3")
+            self.assertEqual(show.text("offset"), "2")
+
+    def test_show_index(self):
+        show = self.validate_identity("SHOW INDEX FROM foo")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.name, "INDEX")
+        self.assertEqual(show.text("target"), "foo")
+
+        show = self.validate_identity("SHOW INDEX FROM foo FROM bar")
+        self.assertEqual(show.text("db"), "bar")
+
+    def test_show_db_like_or_where_sql(self):
+        for key in [
+            "OPEN TABLES",
+            "TABLE STATUS",
+            "TRIGGERS",
+        ]:
+            show = self.validate_identity(f"SHOW {key}")
+            self.assertIsInstance(show, exp.Show)
+            self.assertEqual(show.name, key)
+
+            show = self.validate_identity(f"SHOW {key} FROM db_name")
+            self.assertEqual(show.name, key)
+            self.assertEqual(show.text("db"), "db_name")
+
+            show = self.validate_identity(f"SHOW {key} LIKE '%foo%'")
+            self.assertEqual(show.name, key)
+            self.assertIsInstance(show.args["like"], exp.Literal)
+            self.assertEqual(show.text("like"), "%foo%")
+
+            show = self.validate_identity(f"SHOW {key} WHERE Column_name LIKE '%foo%'")
+            self.assertEqual(show.name, key)
+            self.assertIsInstance(show.args["where"], exp.Where)
+            self.assertEqual(show.args["where"].sql(), "WHERE Column_name LIKE '%foo%'")
+
+    def test_show_processlist(self):
+        show = self.validate_identity("SHOW PROCESSLIST")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.name, "PROCESSLIST")
+        self.assertFalse(show.args["full"])
+
+        show = self.validate_identity("SHOW FULL PROCESSLIST")
+        self.assertEqual(show.name, "PROCESSLIST")
+        self.assertTrue(show.args["full"])
+
+    def test_show_profile(self):
+        show = self.validate_identity("SHOW PROFILE")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.name, "PROFILE")
+
+        show = self.validate_identity("SHOW PROFILE BLOCK IO")
+        self.assertEqual(show.args["types"][0].name, "BLOCK IO")
+
+        show = self.validate_identity(
+            "SHOW PROFILE BLOCK IO, PAGE FAULTS FOR QUERY 1 OFFSET 2 LIMIT 3"
+        )
+        self.assertEqual(show.args["types"][0].name, "BLOCK IO")
+        self.assertEqual(show.args["types"][1].name, "PAGE FAULTS")
+        self.assertEqual(show.text("query"), "1")
+        self.assertEqual(show.text("offset"), "2")
+        self.assertEqual(show.text("limit"), "3")
+
+    def test_show_replica_status(self):
+        show = self.validate_identity("SHOW REPLICA STATUS")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.name, "REPLICA STATUS")
+
+        show = self.validate_identity("SHOW SLAVE STATUS", "SHOW REPLICA STATUS")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.name, "REPLICA STATUS")
+
+        show = self.validate_identity("SHOW REPLICA STATUS FOR CHANNEL channel_name")
+        self.assertEqual(show.text("channel"), "channel_name")
+
+    def test_show_tables(self):
+        show = self.validate_identity("SHOW TABLES")
+        self.assertIsInstance(show, exp.Show)
+        self.assertEqual(show.name, "TABLES")
+
+        show = self.validate_identity("SHOW FULL TABLES FROM db_name LIKE '%foo%'")
+        self.assertTrue(show.args["full"])
+        self.assertEqual(show.text("db"), "db_name")
+        self.assertIsInstance(show.args["like"], exp.Literal)
+        self.assertEqual(show.text("like"), "%foo%")
+
+    def test_set_variable(self):
+        cmd = self.parse_one("SET SESSION x = 1")
+        item = cmd.expressions[0]
+        self.assertEqual(item.text("kind"), "SESSION")
+        self.assertIsInstance(item.this, exp.EQ)
+        self.assertEqual(item.this.left.name, "x")
+        self.assertEqual(item.this.right.name, "1")
+
+        cmd = self.parse_one("SET @@GLOBAL.x = @@GLOBAL.y")
+        item = cmd.expressions[0]
+        self.assertEqual(item.text("kind"), "")
+        self.assertIsInstance(item.this, exp.EQ)
+        self.assertIsInstance(item.this.left, exp.SessionParameter)
+        self.assertIsInstance(item.this.right, exp.SessionParameter)
+
+        cmd = self.parse_one("SET NAMES 'charset_name' COLLATE 'collation_name'")
+        item = cmd.expressions[0]
+        self.assertEqual(item.text("kind"), "NAMES")
+        self.assertEqual(item.name, "charset_name")
+        self.assertEqual(item.text("collate"), "collation_name")
+
+        cmd = self.parse_one("SET CHARSET DEFAULT")
+        item = cmd.expressions[0]
+        self.assertEqual(item.text("kind"), "CHARACTER SET")
+        self.assertEqual(item.this.name, "DEFAULT")
+
+        cmd = self.parse_one("SET x = 1, y = 2")
+        self.assertEqual(len(cmd.expressions), 2)
diff --git a/tests/dialects/test_postgres.py b/tests/dialects/test_postgres.py
index 35141e2..8294eea 100644
--- a/tests/dialects/test_postgres.py
+++ b/tests/dialects/test_postgres.py
@@ -8,7 +8,9 @@ class TestPostgres(Validator):
     def test_ddl(self):
         self.validate_all(
             "CREATE TABLE products (product_no INT UNIQUE, name TEXT, price DECIMAL)",
-            write={"postgres": "CREATE TABLE products (product_no INT UNIQUE, name TEXT, price DECIMAL)"},
+            write={
+                "postgres": "CREATE TABLE products (product_no INT UNIQUE, name TEXT, price DECIMAL)"
+            },
         )
         self.validate_all(
             "CREATE TABLE products (product_no INT CONSTRAINT must_be_different UNIQUE, name TEXT CONSTRAINT present NOT NULL, price DECIMAL)",
@@ -59,15 +61,27 @@ class TestPostgres(Validator):
 
     def test_postgres(self):
         self.validate_identity("SELECT CASE WHEN SUBSTRING('abcdefg') IN ('ab') THEN 1 ELSE 0 END")
-        self.validate_identity("SELECT CASE WHEN SUBSTRING('abcdefg' FROM 1) IN ('ab') THEN 1 ELSE 0 END")
-        self.validate_identity("SELECT CASE WHEN SUBSTRING('abcdefg' FROM 1 FOR 2) IN ('ab') THEN 1 ELSE 0 END")
-        self.validate_identity('SELECT * FROM "x" WHERE SUBSTRING("x"."foo" FROM 1 FOR 2) IN (\'mas\')')
+        self.validate_identity(
+            "SELECT CASE WHEN SUBSTRING('abcdefg' FROM 1) IN ('ab') THEN 1 ELSE 0 END"
+        )
+        self.validate_identity(
+            "SELECT CASE WHEN SUBSTRING('abcdefg' FROM 1 FOR 2) IN ('ab') THEN 1 ELSE 0 END"
+        )
+        self.validate_identity(
+            'SELECT * FROM "x" WHERE SUBSTRING("x"."foo" FROM 1 FOR 2) IN (\'mas\')'
+        )
         self.validate_identity("SELECT * FROM x WHERE SUBSTRING('Thomas' FROM '...$') IN ('mas')")
-        self.validate_identity("SELECT * FROM x WHERE SUBSTRING('Thomas' FROM '%#\"o_a#\"_' FOR '#') IN ('mas')")
-        self.validate_identity("SELECT SUBSTRING('bla' + 'foo' || 'bar' FROM 3 - 1 + 5 FOR 4 + SOME_FUNC(arg1, arg2))")
+        self.validate_identity(
+            "SELECT * FROM x WHERE SUBSTRING('Thomas' FROM '%#\"o_a#\"_' FOR '#') IN ('mas')"
+        )
+        self.validate_identity(
+            "SELECT SUBSTRING('bla' + 'foo' || 'bar' FROM 3 - 1 + 5 FOR 4 + SOME_FUNC(arg1, arg2))"
+        )
         self.validate_identity("SELECT TRIM(' X' FROM ' XXX ')")
         self.validate_identity("SELECT TRIM(LEADING 'bla' FROM ' XXX ' COLLATE utf8_bin)")
-        self.validate_identity("SELECT TO_TIMESTAMP(1284352323.5), TO_TIMESTAMP('05 Dec 2000', 'DD Mon YYYY')")
+        self.validate_identity(
+            "SELECT TO_TIMESTAMP(1284352323.5), TO_TIMESTAMP('05 Dec 2000', 'DD Mon YYYY')"
+        )
         self.validate_identity("COMMENT ON TABLE mytable IS 'this'")
         self.validate_identity("SELECT e'\\xDEADBEEF'")
         self.validate_identity("SELECT CAST(e'\\176' AS BYTEA)")
@@ -75,7 +89,7 @@ class TestPostgres(Validator):
         self.validate_all(
             "CREATE TABLE x (a UUID, b BYTEA)",
             write={
-                "duckdb": "CREATE TABLE x (a UUID, b BINARY)",
+                "duckdb": "CREATE TABLE x (a UUID, b VARBINARY)",
                 "presto": "CREATE TABLE x (a UUID, b VARBINARY)",
                 "hive": "CREATE TABLE x (a UUID, b BINARY)",
                 "spark": "CREATE TABLE x (a UUID, b BINARY)",
@@ -153,7 +167,9 @@ class TestPostgres(Validator):
         )
         self.validate_all(
             "SELECT * FROM foo, LATERAL (SELECT * FROM bar WHERE bar.id = foo.bar_id) AS ss",
-            read={"postgres": "SELECT * FROM foo, LATERAL (SELECT * FROM bar WHERE bar.id = foo.bar_id) AS ss"},
+            read={
+                "postgres": "SELECT * FROM foo, LATERAL (SELECT * FROM bar WHERE bar.id = foo.bar_id) AS ss"
+            },
         )
         self.validate_all(
             "SELECT m.name FROM manufacturers AS m LEFT JOIN LATERAL GET_PRODUCT_NAMES(m.id) AS pname ON TRUE WHERE pname IS NULL",
@@ -169,11 +185,15 @@ class TestPostgres(Validator):
         )
         self.validate_all(
             "SELECT id, email, CAST(deleted AS TEXT) FROM users WHERE NOT deleted IS NULL",
-            read={"postgres": "SELECT id, email, CAST(deleted AS TEXT) FROM users WHERE deleted NOTNULL"},
+            read={
+                "postgres": "SELECT id, email, CAST(deleted AS TEXT) FROM users WHERE deleted NOTNULL"
+            },
         )
         self.validate_all(
             "SELECT id, email, CAST(deleted AS TEXT) FROM users WHERE NOT deleted IS NULL",
-            read={"postgres": "SELECT id, email, CAST(deleted AS TEXT) FROM users WHERE NOT deleted ISNULL"},
+            read={
+                "postgres": "SELECT id, email, CAST(deleted AS TEXT) FROM users WHERE NOT deleted ISNULL"
+            },
         )
         self.validate_all(
             "'[1,2,3]'::json->2",
@@ -184,7 +204,8 @@ class TestPostgres(Validator):
             write={"postgres": """CAST('{"a":1,"b":2}' AS JSON)->'b'"""},
         )
         self.validate_all(
-            """'{"x": {"y": 1}}'::json->'x'->'y'""", write={"postgres": """CAST('{"x": {"y": 1}}' AS JSON)->'x'->'y'"""}
+            """'{"x": {"y": 1}}'::json->'x'->'y'""",
+            write={"postgres": """CAST('{"x": {"y": 1}}' AS JSON)->'x'->'y'"""},
         )
         self.validate_all(
             """'{"x": {"y": 1}}'::json->'x'::json->'y'""",
diff --git a/tests/dialects/test_redshift.py b/tests/dialects/test_redshift.py
index 1ed2bb6..5309a34 100644
--- a/tests/dialects/test_redshift.py
+++ b/tests/dialects/test_redshift.py
@@ -61,4 +61,6 @@ class TestRedshift(Validator):
             "SELECT caldate + INTERVAL '1 second' AS dateplus FROM date WHERE caldate = '12-31-2008'"
         )
         self.validate_identity("CREATE TABLE datetable (start_date DATE, end_date DATE)")
-        self.validate_identity("SELECT COUNT(*) FROM event WHERE eventname LIKE '%Ring%' OR eventname LIKE '%Die%'")
+        self.validate_identity(
+            "SELECT COUNT(*) FROM event WHERE eventname LIKE '%Ring%' OR eventname LIKE '%Die%'"
+        )
diff --git a/tests/dialects/test_snowflake.py b/tests/dialects/test_snowflake.py
index fea2311..1846b17 100644
--- a/tests/dialects/test_snowflake.py
+++ b/tests/dialects/test_snowflake.py
@@ -336,7 +336,8 @@ class TestSnowflake(Validator):
     def test_table_literal(self):
         # All examples from https://docs.snowflake.com/en/sql-reference/literals-table.html
         self.validate_all(
-            r"""SELECT * FROM TABLE('MYTABLE')""", write={"snowflake": r"""SELECT * FROM TABLE('MYTABLE')"""}
+            r"""SELECT * FROM TABLE('MYTABLE')""",
+            write={"snowflake": r"""SELECT * FROM TABLE('MYTABLE')"""},
         )
 
         self.validate_all(
@@ -352,15 +353,123 @@ class TestSnowflake(Validator):
             write={"snowflake": r"""SELECT * FROM TABLE('MYDB. "MYSCHEMA"."MYTABLE"')"""},
         )
 
-        self.validate_all(r"""SELECT * FROM TABLE($MYVAR)""", write={"snowflake": r"""SELECT * FROM TABLE($MYVAR)"""})
+        self.validate_all(
+            r"""SELECT * FROM TABLE($MYVAR)""",
+            write={"snowflake": r"""SELECT * FROM TABLE($MYVAR)"""},
+        )
 
-        self.validate_all(r"""SELECT * FROM TABLE(?)""", write={"snowflake": r"""SELECT * FROM TABLE(?)"""})
+        self.validate_all(
+            r"""SELECT * FROM TABLE(?)""", write={"snowflake": r"""SELECT * FROM TABLE(?)"""}
+        )
 
         self.validate_all(
-            r"""SELECT * FROM TABLE(:BINDING)""", write={"snowflake": r"""SELECT * FROM TABLE(:BINDING)"""}
+            r"""SELECT * FROM TABLE(:BINDING)""",
+            write={"snowflake": r"""SELECT * FROM TABLE(:BINDING)"""},
         )
 
         self.validate_all(
             r"""SELECT * FROM TABLE($MYVAR) WHERE COL1 = 10""",
             write={"snowflake": r"""SELECT * FROM TABLE($MYVAR) WHERE COL1 = 10"""},
         )
+
+    def test_flatten(self):
+        self.validate_all(
+            """
+            select
+              dag_report.acct_id,
+              dag_report.report_date,
+              dag_report.report_uuid,
+              dag_report.airflow_name,
+              dag_report.dag_id,
+              f.value::varchar as operator
+            from cs.telescope.dag_report,
+            table(flatten(input=>split(operators, ','))) f
+            """,
+            write={
+                "snowflake": """SELECT
+  dag_report.acct_id,
+  dag_report.report_date,
+  dag_report.report_uuid,
+  dag_report.airflow_name,
+  dag_report.dag_id,
+  CAST(f.value AS VARCHAR) AS operator
+FROM cs.telescope.dag_report, TABLE(FLATTEN(input => SPLIT(operators, ','))) AS f"""
+            },
+            pretty=True,
+        )
+
+        # All examples from https://docs.snowflake.com/en/sql-reference/functions/flatten.html#syntax
+        self.validate_all(
+            "SELECT * FROM TABLE(FLATTEN(input => parse_json('[1, ,77]'))) f",
+            write={
+                "snowflake": "SELECT * FROM TABLE(FLATTEN(input => PARSE_JSON('[1, ,77]'))) AS f"
+            },
+        )
+
+        self.validate_all(
+            """SELECT * FROM TABLE(FLATTEN(input => parse_json('{"a":1, "b":[77,88]}'), outer => true)) f""",
+            write={
+                "snowflake": """SELECT * FROM TABLE(FLATTEN(input => PARSE_JSON('{"a":1, "b":[77,88]}'), outer => TRUE)) AS f"""
+            },
+        )
+
+        self.validate_all(
+            """SELECT * FROM TABLE(FLATTEN(input => parse_json('{"a":1, "b":[77,88]}'), path => 'b')) f""",
+            write={
+                "snowflake": """SELECT * FROM TABLE(FLATTEN(input => PARSE_JSON('{"a":1, "b":[77,88]}'), path => 'b')) AS f"""
+            },
+        )
+
+        self.validate_all(
+            """SELECT * FROM TABLE(FLATTEN(input => parse_json('[]'))) f""",
+            write={"snowflake": """SELECT * FROM TABLE(FLATTEN(input => PARSE_JSON('[]'))) AS f"""},
+        )
+
+        self.validate_all(
+            """SELECT * FROM TABLE(FLATTEN(input => parse_json('[]'), outer => true)) f""",
+            write={
+                "snowflake": """SELECT * FROM TABLE(FLATTEN(input => PARSE_JSON('[]'), outer => TRUE)) AS f"""
+            },
+        )
+
+        self.validate_all(
+            """SELECT * FROM TABLE(FLATTEN(input => parse_json('{"a":1, "b":[77,88], "c": {"d":"X"}}'))) f""",
+            write={
+                "snowflake": """SELECT * FROM TABLE(FLATTEN(input => PARSE_JSON('{"a":1, "b":[77,88], "c": {"d":"X"}}'))) AS f"""
+            },
+        )
+
+        self.validate_all(
+            """SELECT * FROM TABLE(FLATTEN(input => parse_json('{"a":1, "b":[77,88], "c": {"d":"X"}}'), recursive => true)) f""",
+            write={
+                "snowflake": """SELECT * FROM TABLE(FLATTEN(input => PARSE_JSON('{"a":1, "b":[77,88], "c": {"d":"X"}}'), recursive => TRUE)) AS f"""
+            },
+        )
+
+        self.validate_all(
+            """SELECT * FROM TABLE(FLATTEN(input => parse_json('{"a":1, "b":[77,88], "c": {"d":"X"}}'), recursive => true, mode => 'object')) f""",
+            write={
+                "snowflake": """SELECT * FROM TABLE(FLATTEN(input => PARSE_JSON('{"a":1, "b":[77,88], "c": {"d":"X"}}'), recursive => TRUE, mode => 'object')) AS f"""
+            },
+        )
+
+        self.validate_all(
+            """
+            SELECT id as "ID",
+              f.value AS "Contact",
+              f1.value:type AS "Type",
+              f1.value:content AS "Details"
+            FROM persons p,
+              lateral flatten(input => p.c, path => 'contact') f,
+              lateral flatten(input => f.value:business) f1
+            """,
+            write={
+                "snowflake": """SELECT
+  id AS "ID",
+  f.value AS "Contact",
+  f1.value['type'] AS "Type",
+  f1.value['content'] AS "Details"
+FROM persons AS p, LATERAL FLATTEN(input => p.c, path => 'contact') f, LATERAL FLATTEN(input => f.value['business']) f1""",
+            },
+            pretty=True,
+        )
diff --git a/tests/dialects/test_spark.py b/tests/dialects/test_spark.py
index 8605bd1..4470722 100644
--- a/tests/dialects/test_spark.py
+++ b/tests/dialects/test_spark.py
@@ -284,4 +284,6 @@ TBLPROPERTIES (
         )
 
     def test_iif(self):
-        self.validate_all("SELECT IIF(cond, 'True', 'False')", write={"spark": "SELECT IF(cond, 'True', 'False')"})
+        self.validate_all(
+            "SELECT IIF(cond, 'True', 'False')", write={"spark": "SELECT IF(cond, 'True', 'False')"}
+        )
diff --git a/tests/dialects/test_starrocks.py b/tests/dialects/test_starrocks.py
index 1fe1a57..35d8b45 100644
--- a/tests/dialects/test_starrocks.py
+++ b/tests/dialects/test_starrocks.py
@@ -6,3 +6,6 @@ class TestMySQL(Validator):
 
     def test_identity(self):
         self.validate_identity("SELECT CAST(`a`.`b` AS INT) FROM foo")
+
+    def test_time(self):
+        self.validate_identity("TIMESTAMP('2022-01-01')")
diff --git a/tests/dialects/test_tsql.py b/tests/dialects/test_tsql.py
index d22a9c2..a60f48d 100644
--- a/tests/dialects/test_tsql.py
+++ b/tests/dialects/test_tsql.py
@@ -278,12 +278,19 @@ class TestTSQL(Validator):
     def test_add_date(self):
         self.validate_identity("SELECT DATEADD(year, 1, '2017/08/25')")
         self.validate_all(
-            "SELECT DATEADD(year, 1, '2017/08/25')", write={"spark": "SELECT ADD_MONTHS('2017/08/25', 12)"}
+            "SELECT DATEADD(year, 1, '2017/08/25')",
+            write={"spark": "SELECT ADD_MONTHS('2017/08/25', 12)"},
+        )
+        self.validate_all(
+            "SELECT DATEADD(qq, 1, '2017/08/25')",
+            write={"spark": "SELECT ADD_MONTHS('2017/08/25', 3)"},
         )
-        self.validate_all("SELECT DATEADD(qq, 1, '2017/08/25')", write={"spark": "SELECT ADD_MONTHS('2017/08/25', 3)"})
         self.validate_all(
             "SELECT DATEADD(wk, 1, '2017/08/25')",
-            write={"spark": "SELECT DATE_ADD('2017/08/25', 7)", "databricks": "SELECT DATEADD(week, 1, '2017/08/25')"},
+            write={
+                "spark": "SELECT DATE_ADD('2017/08/25', 7)",
+                "databricks": "SELECT DATEADD(week, 1, '2017/08/25')",
+            },
         )
 
     def test_date_diff(self):
@@ -370,13 +377,21 @@ class TestTSQL(Validator):
             "SELECT FORMAT(1000000.01,'###,###.###')",
             write={"spark": "SELECT FORMAT_NUMBER(1000000.01, '###,###.###')"},
         )
-        self.validate_all("SELECT FORMAT(1234567, 'f')", write={"spark": "SELECT FORMAT_NUMBER(1234567, 'f')"})
+        self.validate_all(
+            "SELECT FORMAT(1234567, 'f')", write={"spark": "SELECT FORMAT_NUMBER(1234567, 'f')"}
+        )
         self.validate_all(
             "SELECT FORMAT('01-01-1991', 'dd.mm.yyyy')",
             write={"spark": "SELECT DATE_FORMAT('01-01-1991', 'dd.mm.yyyy')"},
         )
         self.validate_all(
-            "SELECT FORMAT(date_col, 'dd.mm.yyyy')", write={"spark": "SELECT DATE_FORMAT(date_col, 'dd.mm.yyyy')"}
+            "SELECT FORMAT(date_col, 'dd.mm.yyyy')",
+            write={"spark": "SELECT DATE_FORMAT(date_col, 'dd.mm.yyyy')"},
+        )
+        self.validate_all(
+            "SELECT FORMAT(date_col, 'm')",
+            write={"spark": "SELECT DATE_FORMAT(date_col, 'MMMM d')"},
+        )
+        self.validate_all(
+            "SELECT FORMAT(num_col, 'c')", write={"spark": "SELECT FORMAT_NUMBER(num_col, 'c')"}
         )
-        self.validate_all("SELECT FORMAT(date_col, 'm')", write={"spark": "SELECT DATE_FORMAT(date_col, 'MMMM d')"})
-        self.validate_all("SELECT FORMAT(num_col, 'c')", write={"spark": "SELECT FORMAT_NUMBER(num_col, 'c')"})