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Diffstat (limited to 'lib/sqlalchemy/orm/properties.py')
| -rw-r--r-- | lib/sqlalchemy/orm/properties.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/properties.py b/lib/sqlalchemy/orm/properties.py index 360edc6e9..01ce7043a 100644 --- a/lib/sqlalchemy/orm/properties.py +++ b/lib/sqlalchemy/orm/properties.py @@ -163,6 +163,13 @@ class ColumnProperty(StrategizedProperty): self.parent.class_manager, strategies.LoadDeferredColumns(self.key), self.key) + def __clause_element__(self): + """Allow the ColumnProperty to work in expression before it is turned + into an instrumented attribute. + """ + + return self.expression + @property def expression(self): """Return the primary column or expression for this ColumnProperty. |