Fix(duckdb): revert timestamp/datetime -> timestampntz parsing temporarily (#4878)

Author: georgesittas

sqlglot/dialects/duckdb.py

@@ -322,7 +322,6 @@ class Tokenizer(tokens.Tokenizer):
             "BPCHAR": TokenType.TEXT,
             "CHAR": TokenType.TEXT,
             "CHARACTER VARYING": TokenType.TEXT,
-            "DATETIME": TokenType.TIMESTAMPNTZ,
             "DETACH": TokenType.DETACH,
             "EXCLUDE": TokenType.EXCEPT,
             "LOGICAL": TokenType.BOOLEAN,
@@ -332,7 +331,6 @@ class Tokenizer(tokens.Tokenizer):
             "SIGNED": TokenType.INT,
             "STRING": TokenType.TEXT,
             "SUMMARIZE": TokenType.SUMMARIZE,
-            "TIMESTAMP": TokenType.TIMESTAMPNTZ,
             "TIMESTAMP_S": TokenType.TIMESTAMP_S,
             "TIMESTAMP_MS": TokenType.TIMESTAMP_MS,
             "TIMESTAMP_NS": TokenType.TIMESTAMP_NS,

tests/dialects/test_clickhouse.py

@@ -281,6 +281,7 @@ def test_clickhouse(self):
         self.validate_all(
             "SELECT CAST('2020-01-01' AS Nullable(DateTime)) + INTERVAL '500' MICROSECOND",
             read={
+                "duckdb": "SELECT TIMESTAMP '2020-01-01' + INTERVAL '500 us'",
                 "postgres": "SELECT TIMESTAMP '2020-01-01' + INTERVAL '500 us'",
             },
             write={

tests/dialects/test_duckdb.py

@@ -423,7 +423,6 @@ def test_duckdb(self):
             "SELECT STRFTIME(CAST('2020-01-01' AS TIMESTAMP), CONCAT('%Y', '%m'))",
             write={
                 "duckdb": "SELECT STRFTIME(CAST('2020-01-01' AS TIMESTAMP), CONCAT('%Y', '%m'))",
-                "spark": "SELECT DATE_FORMAT(CAST('2020-01-01' AS TIMESTAMP_NTZ), CONCAT(COALESCE('yyyy', ''), COALESCE('MM', '')))",
                 "tsql": "SELECT FORMAT(CAST('2020-01-01' AS DATETIME2), CONCAT('yyyy', 'MM'))",
             },
         )

tests/dialects/test_mysql.py

@@ -1311,7 +1311,7 @@ def test_safe_div(self):
 
     def test_timestamp_trunc(self):
         hive_dialects = ("spark", "databricks")
-        for dialect in ("postgres", "snowflake", *hive_dialects):
+        for dialect in ("postgres", "snowflake", "duckdb", *hive_dialects):
             for unit in (
                 "SECOND",
                 "DAY",