Adding upstream version 6.2.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

sqlglot/dialects/snowflake.py

@@ -106,6 +106,11 @@ class Snowflake(Dialect):
             "TO_TIMESTAMP": _snowflake_to_timestamp,
         }
 
+        FUNCTION_PARSERS = {
+            **Parser.FUNCTION_PARSERS,
+            "DATE_PART": lambda self: self._parse_extract(),
+        }
+
         COLUMN_OPERATORS = {
             **Parser.COLUMN_OPERATORS,
             TokenType.COLON: lambda self, this, path: self.expression(
@@ -118,10 +123,20 @@ class Snowflake(Dialect):
     class Tokenizer(Tokenizer):
         QUOTES = ["'", "$$"]
         ESCAPE = "\\"
+
+        SINGLE_TOKENS = {
+            **Tokenizer.SINGLE_TOKENS,
+            "$": TokenType.DOLLAR,  # needed to break for quotes
+        }
+
         KEYWORDS = {
             **Tokenizer.KEYWORDS,
             "QUALIFY": TokenType.QUALIFY,
             "DOUBLE PRECISION": TokenType.DOUBLE,
+            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
+            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
+            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
+            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
         }
 
     class Generator(Generator):
@@ -132,6 +147,11 @@ class Snowflake(Dialect):
             exp.UnixToTime: _unix_to_time,
         }
 
+        TYPE_MAPPING = {
+            **Generator.TYPE_MAPPING,
+            exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ",
+        }
+
         def except_op(self, expression):
             if not expression.args.get("distinct", False):
                 self.unsupported("EXCEPT with All is not supported in Snowflake")