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-rw-r--r--lib/sqlalchemy/dialects/postgresql/base.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index 3bd7e62d5..7717a2526 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -1299,6 +1299,14 @@ class UUID(sqltypes.TypeEngine):
"""
self.as_uuid = as_uuid
+ def coerce_compared_value(self, op, value):
+ """See :meth:`.TypeEngine.coerce_compared_value` for a description."""
+
+ if isinstance(value, util.string_types):
+ return self
+ else:
+ return super(UUID, self).coerce_compared_value(op, value)
+
def bind_processor(self, dialect):
if self.as_uuid: