diff options
Diffstat (limited to 'lib/sqlalchemy/sql/schema.py')
| -rw-r--r-- | lib/sqlalchemy/sql/schema.py | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/sqlalchemy/sql/schema.py b/lib/sqlalchemy/sql/schema.py index 42dbe72b2..b244d746c 100644 --- a/lib/sqlalchemy/sql/schema.py +++ b/lib/sqlalchemy/sql/schema.py @@ -2498,9 +2498,13 @@ class ColumnCollectionMixin(object): has_string_cols = set(self._pending_colargs).difference(col_objs) if not has_string_cols: def _col_attached(column, table): - cols_wo_table.discard(column) - if not cols_wo_table: - self._check_attach(evt=True) + # this isinstance() corresponds with the + # isinstance() above; only want to count Table-bound + # columns + if isinstance(table, Table): + cols_wo_table.discard(column) + if not cols_wo_table: + self._check_attach(evt=True) self._cols_wo_table = cols_wo_table for col in cols_wo_table: col._on_table_attach(_col_attached) |