ALTER TABLE project_options ADD assistant_transfer_to_channel_id bigint;
ALTER TABLE project_options ADD personal_manager_group_transfer_to_channel_id bigint;

ALTER TABLE project_options ADD CONSTRAINT FK_Assistant_Transfer FOREIGN KEY (assistant_transfer_to_channel_id) REFERENCES channels (id);
ALTER TABLE project_options ADD CONSTRAINT FK_Personal_Manager_Group_Transfer FOREIGN KEY (personal_manager_group_transfer_to_channel_id) REFERENCES channels (id);