diff options
Diffstat (limited to 'lib/sqlalchemy/sql/util.py')
| -rw-r--r-- | lib/sqlalchemy/sql/util.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/sqlalchemy/sql/util.py b/lib/sqlalchemy/sql/util.py index f003a9691..77c3e45ec 100644 --- a/lib/sqlalchemy/sql/util.py +++ b/lib/sqlalchemy/sql/util.py @@ -194,13 +194,15 @@ def adapt_criterion_to_null(crit, nulls): """given criterion containing bind params, convert selected elements to IS NULL.""" def visit_binary(binary): - if isinstance(binary.left, expression._BindParamClause) and binary.left.key in nulls: + if isinstance(binary.left, expression._BindParamClause) \ + and binary.left._identifying_key in nulls: # reverse order if the NULL is on the left side binary.left = binary.right binary.right = expression.null() binary.operator = operators.is_ binary.negate = operators.isnot - elif isinstance(binary.right, expression._BindParamClause) and binary.right.key in nulls: + elif isinstance(binary.right, expression._BindParamClause) \ + and binary.right._identifying_key in nulls: binary.right = expression.null() binary.operator = operators.is_ binary.negate = operators.isnot |