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-rw-r--r--lib/sqlalchemy/sql/schema.py7
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/schema.py b/lib/sqlalchemy/sql/schema.py
index dde5cd372..cd10d0c4a 100644
--- a/lib/sqlalchemy/sql/schema.py
+++ b/lib/sqlalchemy/sql/schema.py
@@ -2360,6 +2360,9 @@ class Column(DialectKWArgs, SchemaItem, ColumnClause[_T]):
name: Optional[str] = None,
key: Optional[str] = None,
name_is_truncatable: bool = False,
+ compound_select_cols: Optional[
+ _typing_Sequence[ColumnElement[Any]]
+ ] = None,
**kw: Any,
) -> Tuple[str, ColumnClause[_T]]:
"""Create a *proxy* for this column.
@@ -2401,7 +2404,9 @@ class Column(DialectKWArgs, SchemaItem, ColumnClause[_T]):
key=key if key else name if name else self.key,
primary_key=self.primary_key,
nullable=self.nullable,
- _proxies=[self],
+ _proxies=list(compound_select_cols)
+ if compound_select_cols
+ else [self],
*fk,
)
except TypeError as err: