timsaucer commented on code in PR #1363:
URL:
https://github.com/apache/datafusion-python/pull/1363#discussion_r2782490399
##########
python/datafusion/catalog.py:
##########
@@ -195,6 +243,38 @@ def kind(self) -> str:
return self._inner.kind
+class CatalogProviderList(ABC):
+ """Abstract class for defining a Python based Catalog Provider List."""
+
+ @abstractmethod
+ def catalog_names(self) -> set[str]:
+ """Set of the names of all catalogs in this catalog list."""
+ ...
+
+ @abstractmethod
+ def catalog(self, name: str) -> Catalog | None:
Review Comment:
Good point! This should be any of the 3 returnable types, including
`Catalog`.
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