diff options
Diffstat (limited to 'lib/sqlalchemy/sql/util.py')
| -rw-r--r-- | lib/sqlalchemy/sql/util.py | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/sqlalchemy/sql/util.py b/lib/sqlalchemy/sql/util.py index 36357faf5..f1f329b5e 100644 --- a/lib/sqlalchemy/sql/util.py +++ b/lib/sqlalchemy/sql/util.py @@ -343,14 +343,14 @@ def criterion_as_pairs(expression, consider_as_foreign_keys=None, consider_as_re return if consider_as_foreign_keys: - if binary.left in consider_as_foreign_keys: + if binary.left in consider_as_foreign_keys and (binary.right is binary.left or binary.right not in consider_as_foreign_keys): pairs.append((binary.right, binary.left)) - elif binary.right in consider_as_foreign_keys: + elif binary.right in consider_as_foreign_keys and (binary.left is binary.right or binary.left not in consider_as_foreign_keys): pairs.append((binary.left, binary.right)) elif consider_as_referenced_keys: - if binary.left in consider_as_referenced_keys: + if binary.left in consider_as_referenced_keys and (binary.right is binary.left or binary.right not in consider_as_referenced_keys): pairs.append((binary.left, binary.right)) - elif binary.right in consider_as_referenced_keys: + elif binary.right in consider_as_referenced_keys and (binary.left is binary.right or binary.left not in consider_as_referenced_keys): pairs.append((binary.right, binary.left)) else: if isinstance(binary.left, schema.Column) and isinstance(binary.right, schema.Column): |