Merge pull request #506 from DagsHub/bug/timezone-introspection

Bug: Filter the metadata fields based on the introspection

dagshub/data_engine/client/gql_queries.py

@@ -42,7 +42,12 @@ def datasource_params(id: Optional[Union[int, str]], name: Optional[str]) -> Dic
  @staticmethod
  @functools.lru_cache()
  def datasource_query(include_metadata: bool, introspection: "TypesIntrospection") -> GqlQuery:
- metadata_fields = "metadata { key value timeZone }" if include_metadata else ""
+ metadata_fields = ""
+ if include_metadata:
+ # Filter out the unavailable fields
+ queryable_fields = ["key", "value", "timeZone"]
+ queryable_fields = Validators.filter_supported_fields(queryable_fields, "MetadataField", introspection)
+ metadata_fields = "metadata " + "{" + " ".join(queryable_fields) + "}"
  q = (
  GqlQuery()
  .operation(