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-rw-r--r--lib/sqlalchemy/sql/compiler.py15
1 files changed, 8 insertions, 7 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py
index 3304cff43..2588de6b4 100644
--- a/lib/sqlalchemy/sql/compiler.py
+++ b/lib/sqlalchemy/sql/compiler.py
@@ -663,15 +663,16 @@ class SQLCompiler(engine.Compiled):
(' ESCAPE ' + self.render_literal_value(escape, None))
or '')
+ def visit_custom_op(self, element, dispatch_operator, dispatch_fn, **kw):
+ return dispatch_fn(" " + dispatch_operator.opstring + " ")
+
def _operator_dispatch(self, operator, element, fn, **kw):
- if util.callable(operator):
- disp = getattr(self, "visit_%s" % operator.__name__, None)
- if disp:
- return disp(element, **kw)
- else:
- return fn(OPERATORS[operator])
+ disp = getattr(self, "visit_%s" % operator.__name__, None)
+ if disp:
+ kw.update(dispatch_operator=operator, dispatch_fn=fn)
+ return disp(element, **kw)
else:
- return fn(" " + operator + " ")
+ return fn(OPERATORS[operator])
def visit_bindparam(self, bindparam, within_columns_clause=False,
literal_binds=False, **kwargs):