- Added a new parameter :paramref:`.Operators.op.is_comparison`. This

flag allows a custom op from :meth:`.Operators.op` to be considered
as a "comparison" operator, thus usable for custom
:paramref:`.relationship.primaryjoin` conditions.

1 files changed, 10 insertions, 0 deletions

diff --git a/test/sql/test_operators.py b/test/sql/test_operators.py
index 670d088d2..79b0a717b 100644
--- a/test/sql/test_operators.py
+++ b/test/sql/test_operators.py
@@ -1585,3 +1585,13 @@ class ComposedLikeOperatorsTest(fixtures.TestBase, testing.AssertsCompiledSQL):
             dialect=mysql.dialect()
         )
 
+class CustomOpTest(fixtures.TestBase):
+    def test_is_comparison(self):
+        c = column('x')
+        c2 = column('y')
+        op1 = c.op('$', is_comparison=True)(c2).operator
+        op2 = c.op('$', is_comparison=False)(c2).operator
+
+        assert operators.is_comparison(op1)
+        assert not operators.is_comparison(op2)
+