Feat(duckdb): extend time travel parsing to take VERSION into account

Author: georgesittas

sqlglot/parser.py

@@ -1357,7 +1357,7 @@ def _parse_partitioned_by_bucket_or_truncate(self) -> exp.Expression:
 
     CLONE_KEYWORDS = {"CLONE", "COPY"}
     HISTORICAL_DATA_PREFIX = {"AT", "BEFORE", "END"}
-    HISTORICAL_DATA_KIND = {"TIMESTAMP", "OFFSET", "STATEMENT", "STREAM"}
+    HISTORICAL_DATA_KIND = {"OFFSET", "STATEMENT", "STREAM", "TIMESTAMP", "VERSION"}
 
     OPCLASS_FOLLOW_KEYWORDS = {"ASC", "DESC", "NULLS", "WITH"}
 

tests/dialects/test_duckdb.py

@@ -9,6 +9,7 @@ class TestDuckDB(Validator):
     dialect = "duckdb"
 
     def test_duckdb(self):
+        self.validate_identity("SELECT * FROM my_ducklake.demo AT (VERSION => 2)")
         self.validate_identity("SELECT UUIDV7()")
         self.validate_identity("SELECT TRY(LOG(0))")
         self.validate_identity("x::timestamp", "CAST(x AS TIMESTAMP)")