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Diffstat (limited to 'lib/sqlalchemy/sql.py')
| -rw-r--r-- | lib/sqlalchemy/sql.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql.py b/lib/sqlalchemy/sql.py index 45a95795f..34f59fd9c 100644 --- a/lib/sqlalchemy/sql.py +++ b/lib/sqlalchemy/sql.py @@ -1033,6 +1033,12 @@ class ColumnClause(ColumnElement): _label = property(_get_label) def accept_visitor(self, visitor): visitor.visit_column(self) + def to_selectable(self, selectable): + """given a Selectable, returns this column's equivalent in that Selectable, if any. + + for example, this could translate the column "name" from a Table object + to an Alias of a Select off of that Table object.""" + return selectable._get_col_by_original(self.original, False) def _get_from_objects(self): if self.table is not None: return [self.table] |