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Author: toriwei

sqlmesh/dbt/model.py

@@ -175,6 +175,11 @@ def _validate_check_cols(cls, v: t.Union[str, t.List[str]]) -> t.Union[str, t.Li
     @field_validator("updated_at", mode="before")
     @classmethod
     def _validate_updated_at(cls, v: t.Optional[str]) -> t.Optional[str]:
+        """
+        Extract column name if updated_at contains a cast.
+
+        SCDType2ByTimeKind and SCDType2ByColumnKind expect a column, and the casting is done later.
+        """
         if v is None:
             return None
         parsed = d.parse_one(v)