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-rw-r--r--lib/sqlalchemy/schema.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sqlalchemy/schema.py b/lib/sqlalchemy/schema.py
index a6e3f5f29..f6ad52adc 100644
--- a/lib/sqlalchemy/schema.py
+++ b/lib/sqlalchemy/schema.py
@@ -727,7 +727,7 @@ class ForeignKey(SchemaItem):
break
else:
raise exceptions.ArgumentError("Parent column '%s' does not descend from a table-attached Column" % str(self.parent))
- m = re.match(r"^([\w_-]+)(?:\.([\w_-]+))?(?:\.([\w_-]+))?$", self._colspec, re.UNICODE)
+ m = re.match(r"^(.+?)(?:\.(.+?))?(?:\.(.+?))?$", self._colspec, re.UNICODE)
if m is None:
raise exceptions.ArgumentError("Invalid foreign key column specification: " + self._colspec)
if m.group(3) is None: