diff options
Diffstat (limited to 'lib/sqlalchemy/sql.py')
| -rw-r--r-- | lib/sqlalchemy/sql.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql.py b/lib/sqlalchemy/sql.py index 3a8a27d67..41b61d4af 100644 --- a/lib/sqlalchemy/sql.py +++ b/lib/sqlalchemy/sql.py @@ -1734,6 +1734,8 @@ class FromClause(Selectable): for co in self._adjusted_exportable_columns(): cp = self._proxy_column(co) for ci in cp.orig_set: + # note that some ambiguity is raised here, whereby a selectable might have more than + # one column that maps to an "original" column. examples include unions and joins self._orig_cols[ci] = cp if self.oid_column is not None: for ci in self.oid_column.orig_set: |