From a4a81f7b962102ba1ed3a60d9ac52c62a57c4458 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sat, 7 Jan 2012 15:37:51 -0500
Subject: - [bug] the "name" of an FK constraint in SQLite is reflected as
 "None", not "0" [ticket:2364]. SQLite does not appear to support constraint
 naming in any case (the names are ignored).

---
 lib/sqlalchemy/dialects/sqlite/base.py | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lib/sqlalchemy')

diff --git a/lib/sqlalchemy/dialects/sqlite/base.py b/lib/sqlalchemy/dialects/sqlite/base.py
index 63f66f9d2..004798956 100644
--- a/lib/sqlalchemy/dialects/sqlite/base.py
+++ b/lib/sqlalchemy/dialects/sqlite/base.py
@@ -697,6 +697,8 @@ class SQLiteDialect(default.DefaultDialect):
             if row is None:
                 break
             (constraint_name, rtbl, lcol, rcol) = (row[0], row[2], row[3], row[4])
+            if not constraint_name:
+                constraint_name = None
             # sqlite won't return rcol if the table
             # was created with REFERENCES <tablename>, no col
             if rcol is None:
-- 
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