Merge "ensure anon_map is passed for most annotated traversals" into main

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/sqlalchemy/sql/schema.py b/lib/sqlalchemy/sql/schema.py
index 36c33868a..dde5cd372 100644
--- a/lib/sqlalchemy/sql/schema.py
+++ b/lib/sqlalchemy/sql/schema.py
@@ -2023,6 +2023,17 @@ class Column(DialectKWArgs, SchemaItem, ColumnClause[_T]):
 
     identity: Optional[Identity]
 
+    @util.memoized_property
+    def _gen_static_annotations_cache_key(self) -> bool:  # type: ignore
+        """special attribute used by cache key gen, if true, we will
+        use a static cache key for the annotations dictionary, else we
+        will generate a new cache key for annotations each time.
+
+        Added for #8790
+
+        """
+        return self.table is not None and self.table._is_table
+
     def _extra_kwargs(self, **kwargs: Any) -> None:
         self._validate_dialect_kwargs(kwargs)