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-rw-r--r--oslo_db/sqlalchemy/exc_filters.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/oslo_db/sqlalchemy/exc_filters.py b/oslo_db/sqlalchemy/exc_filters.py
index 5df1eb7..777fda6 100644
--- a/oslo_db/sqlalchemy/exc_filters.py
+++ b/oslo_db/sqlalchemy/exc_filters.py
@@ -192,7 +192,7 @@ def _sqlite_dupe_key_error(integrity_error, match, engine_name, is_disconnect):
"is not present in table "
"\"(?P<key_table>[^\"]+)\".")
@filters("mysql", sqla_exc.IntegrityError,
- r".* 'Cannot add or update a child row: "
+ r".* u?'Cannot add or update a child row: "
'a foreign key constraint fails \([`"].+[`"]\.[`"](?P<table>.+)[`"], '
'CONSTRAINT [`"](?P<constraint>.+)[`"] FOREIGN KEY '
'\([`"](?P<key>.+)[`"]\) REFERENCES [`"](?P<key_table>.+)[`"] ')