- defaultdict benchmarks faster than a namedtuple; OK

- inline the column-based expiration operations as well

1 files changed, 0 insertions, 14 deletions

diff --git a/lib/sqlalchemy/orm/state.py b/lib/sqlalchemy/orm/state.py
index 17872a9b4..3c12fda1a 100644
--- a/lib/sqlalchemy/orm/state.py
+++ b/lib/sqlalchemy/orm/state.py
@@ -334,20 +334,6 @@ class InstanceState(interfaces.InspectionAttr):
             self.manager[key].impl._invalidate_collection(old)
         self.callables.pop(key, None)
 
-    def _expire_attribute_pre_commit(self, dict_, key):
-        """a fast expire that can be called by column loaders during a load.
-
-        The additional bookkeeping is finished up in commit_all().
-
-        Should only be called for scalar attributes.
-
-        This method is actually called a lot with joined-table
-        loading, when the second table isn't present in the result.
-
-        """
-        dict_.pop(key, None)
-        self.callables[key] = self
-
     @classmethod
     def _row_processor(cls, manager, fn, key):
         impl = manager[key].impl