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Diffstat (limited to 'lib/sqlalchemy/sql/base.py')
| -rw-r--r-- | lib/sqlalchemy/sql/base.py | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/sqlalchemy/sql/base.py b/lib/sqlalchemy/sql/base.py index fc80334e8..0b96e5bbf 100644 --- a/lib/sqlalchemy/sql/base.py +++ b/lib/sqlalchemy/sql/base.py @@ -1969,7 +1969,11 @@ class DedupeColumnCollection(ColumnCollection[str, _NAMEDCOL]): # delete higher index del self._index[len(self._collection)] - def replace(self, column: _NAMEDCOL) -> None: + def replace( + self, + column: _NAMEDCOL, + extra_remove: Optional[Iterable[_NAMEDCOL]] = None, + ) -> None: """add the given column to this collection, removing unaliased versions of this column as well as existing columns with the same key. @@ -1986,7 +1990,10 @@ class DedupeColumnCollection(ColumnCollection[str, _NAMEDCOL]): """ - remove_col = set() + if extra_remove: + remove_col = set(extra_remove) + else: + remove_col = set() # remove up to two columns based on matches of name as well as key if column.name in self._index and column.key != column.name: other = self._index[column.name][1] |