diff options
Diffstat (limited to 'lib/sqlalchemy/sql/schema.py')
| -rw-r--r-- | lib/sqlalchemy/sql/schema.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/schema.py b/lib/sqlalchemy/sql/schema.py index 1d6bc4c61..88050b87e 100644 --- a/lib/sqlalchemy/sql/schema.py +++ b/lib/sqlalchemy/sql/schema.py @@ -69,7 +69,8 @@ def _get_table_key(name, schema): # break an import cycle def _copy_expression(expression, source_table, target_table): def replace(col): - if source_table.c.contains_column(col): + if isinstance(col, Column) and \ + col.table is source_table and col.key in source_table.c: return target_table.c[col.key] else: return None |