Enforce sane isolation levels

diff --git a/bucardo.schema b/bucardo.schema
index 7ec921f68a3f9c2a274ba905b4175f73147b0338..ee8dfc3147ee3b30b5d496326ade69880c7aed1a 100644 (file)
--- a/bucardo.schema
+++ b/bucardo.schema
@@ -63,6 +63,9 @@ CREATE UNIQUE INDEX bucardo_config_unique_name ON bucardo.bucardo_config(name,it
 
 ALTER TABLE bucardo.bucardo_config ADD CONSTRAINT valid_config_type CHECK (type IN ('sync','goat'));
 
+ALTER TABLE bucardo.bucardo_config ADD CONSTRAINT valid_config_isolation_level
+  CHECK (name <> 'isolation_level' OR setting IN ('serializable','repeatable read'));
+
 CREATE FUNCTION bucardo.check_bucardo_config()
 RETURNS TRIGGER
 LANGUAGE plpgsql