diff options
Diffstat (limited to 'lib/sqlalchemy/sql')
| -rw-r--r-- | lib/sqlalchemy/sql/expression.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py index 842e76d15..43b22fc8e 100644 --- a/lib/sqlalchemy/sql/expression.py +++ b/lib/sqlalchemy/sql/expression.py @@ -1967,7 +1967,8 @@ class FromClause(Selectable): target_set = column.proxy_set cols = self.c for c in cols: - i = c.proxy_set.intersection(target_set) + i = target_set.intersection(itertools.chain(*[p._cloned_set for p in c.proxy_set])) + if i and \ (not require_embedded or c.proxy_set.issuperset(target_set)): |