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-rw-r--r--lib/sqlalchemy/sql/compiler.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py
index 7547e1662..76303c10c 100644
--- a/lib/sqlalchemy/sql/compiler.py
+++ b/lib/sqlalchemy/sql/compiler.py
@@ -489,7 +489,7 @@ class SQLCompiler(engine.Compiled):
return disp(func, **kwargs)
else:
name = FUNCTIONS.get(func.__class__, func.name + "%(expr)s")
- return ".".join(func.packagenames + [name]) % \
+ return ".".join(list(func.packagenames) + [name]) % \
{'expr':self.function_argspec(func, **kwargs)}
def visit_next_value_func(self, next_value, **kw):