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-rw-r--r--lib/sqlalchemy/orm/interfaces.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/interfaces.py b/lib/sqlalchemy/orm/interfaces.py
index fbe8f503e..1b14acefb 100644
--- a/lib/sqlalchemy/orm/interfaces.py
+++ b/lib/sqlalchemy/orm/interfaces.py
@@ -348,6 +348,9 @@ class PropComparator(operators.ColumnOperators):
def _query_clause_element(self):
return self.__clause_element__()
+ def _bulk_update_tuples(self, value):
+ return [(self.__clause_element__(), value)]
+
def adapt_to_entity(self, adapt_to_entity):
"""Return a copy of this PropComparator which will use the given
:class:`.AliasedInsp` to produce corresponding expressions.