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-rw-r--r--lib/sqlalchemy/sql/compiler.py6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py
index d597837bd..17c9c9e8b 100644
--- a/lib/sqlalchemy/sql/compiler.py
+++ b/lib/sqlalchemy/sql/compiler.py
@@ -1286,7 +1286,7 @@ class SQLCompiler(Compiled):
# call down to compiler.visit_join(), compiler.visit_select()
join_name = selectable.Join.__visit_name__
select_name = selectable.Select.__visit_name__
-
+ alias_name = selectable.Alias.__visit_name__
def visit(element, **kw):
if element in column_translate[-1]:
return column_translate[-1][element]
@@ -1307,7 +1307,6 @@ class SQLCompiler(Compiled):
selectable_ = selectable.Select(
[right.element],
use_labels=True).alias()
-
for c in selectable_.c:
c._key_label = c.key
c._label = c.name
@@ -1336,7 +1335,8 @@ class SQLCompiler(Compiled):
newelem.right = selectable_
newelem.onclause = visit(newelem.onclause, **kw)
- elif newelem.__visit_name__ is select_name:
+ elif newelem.__visit_name__ is alias_name \
+ and newelem.element.__visit_name__ is select_name:
column_translate.append({})
newelem._copy_internals(clone=visit, **kw)
del column_translate[-1]