Given a list of relatinships

// add members to groups
usergroup:1#direct_member@user:2
usergroup:2#direct_member@user:2
usergroup:3#direct_member@user:2

How do I delete the relatinships for user

2

via the protobuf API? In SQL term, that is

sql
DELETE from relation_tuple where namespace='usergroup' and userset_namespace='user' and userset_object_id='2' and relation='direct_member';

I tried the following but nothing happened in the database level, hwoever, the reponse DID show `relationships_deleted_count: 5`; On subsequet call, it changed to

relationships_deleted_count: 0

.

rs
DeleteRelationshipsRequest {
    relationship_filter: Some(
        RelationshipFilter {
            resource_type: "usergroup",
            optional_resource_id: "",
            optional_resource_id_prefix: "",
            optional_relation: "direct_member",
            optional_subject_filter: Some(
                SubjectFilter {
                    subject_type: "user",
                    optional_subject_id: "2",
                    optional_relation: None,
                },
            ),
        },
    ),
    optional_preconditions: [],
    optional_limit: 0,
    optional_allow_partial_deletions: false,
    optional_transaction_metadata: None,
}

Response {
    metadata: MetadataMap {
        headers: {
            "content-type": "application/grpc",
            "io.spicedb.respmeta.requestid": "d2j6humih8mvljat2djg",
            "grpc-status": "0",
            "grpc-message": "",
            "io.spicedb.respmeta.dispatchedoperationscount": "1",
            "io.spicedb.respmeta.cachedoperationscount": "0",
        },
    },
    message: DeleteRelationshipsResponse {
        deleted_at: Some(
            ZedToken {
                token: "GgoKCENKNmVBZz09",
            },
        ),
        deletion_progress: Complete,
        relationships_deleted_count: 5,
    },
    extensions: Extensions,
}