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-rw-r--r--lib/sqlalchemy/dialects/postgresql/base.py1
1 files changed, 0 insertions, 1 deletions
diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index 29f1651fb..7363b2334 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -1588,7 +1588,6 @@ class PGDialect(default.DefaultDialect):
e.enumlabel as "label"
FROM pg_catalog.pg_type t
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = t.typnamespace
- LEFT JOIN pg_catalog.pg_constraint r ON t.oid = r.contypid
LEFT JOIN pg_catalog.pg_enum e ON t.oid = e.enumtypid
WHERE t.typtype = 'e'
ORDER BY "name", e.oid -- e.oid gives us label order