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Diffstat (limited to 'lib/sqlalchemy/sql/expression.py')
| -rw-r--r-- | lib/sqlalchemy/sql/expression.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py index 3dc7242d7..b2eaa4221 100644 --- a/lib/sqlalchemy/sql/expression.py +++ b/lib/sqlalchemy/sql/expression.py @@ -2898,7 +2898,8 @@ class CompoundSelect(_SelectBaseMixin, FromClause): _SelectBaseMixin.__init__(self, **kwargs) for s in self.selects: - self.oid_column = self._proxy_column(s.oid_column) + if s.oid_column: + self.oid_column = self._proxy_column(s.oid_column) def self_group(self, against=None): |