diff options
Diffstat (limited to 'lib/sqlalchemy/sql')
| -rw-r--r-- | lib/sqlalchemy/sql/expression.py | 4 | ||||
| -rw-r--r-- | lib/sqlalchemy/sql/operators.py | 5 |
2 files changed, 9 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py index 30e19bc68..72099a5f5 100644 --- a/lib/sqlalchemy/sql/expression.py +++ b/lib/sqlalchemy/sql/expression.py @@ -3385,6 +3385,10 @@ class _BinaryExpression(ColumnElement): raise TypeError("Boolean value of this clause is not defined") @property + def is_comparison(self): + return operators.is_comparison(self.operator) + + @property def _from_objects(self): return self.left._from_objects + self.right._from_objects diff --git a/lib/sqlalchemy/sql/operators.py b/lib/sqlalchemy/sql/operators.py index 89f0aaee1..b86b50db4 100644 --- a/lib/sqlalchemy/sql/operators.py +++ b/lib/sqlalchemy/sql/operators.py @@ -521,6 +521,11 @@ def nullslast_op(a): _commutative = set([eq, ne, add, mul]) +_comparison = set([eq, ne, lt, gt, ge, le]) + +def is_comparison(op): + return op in _comparison + def is_commutative(op): return op in _commutative |