db.permission.createIndex({"name": 1}, {unique: true});
db.permission.createIndex({"http_path": 1, "http_method": 1}, {unique: true, sparse: true});
db.permission.createIndex({"status": 1});
db.permission.createIndex({"parent_id": 1});
db.permission.createIndex({"type": 1, "status": 1});
db.permission.createIndex({"create_time": 1});