-- 彻底改为通过 project_user_binding 管理项目人员，project 表不再存人员ID字段

ALTER TABLE project
    DROP COLUMN host_enterprise_id,
    DROP COLUMN host_owner_user_id,
    DROP COLUMN host_executor_user_id,
    DROP COLUMN partner_owner_user_id,
    DROP COLUMN partner_executor_user_id,
    DROP COLUMN host_backup_executor_user_id,
    DROP COLUMN partner_backup_executor_user_id,
    DROP COLUMN project_owner_approver_user_id,
    DROP COLUMN finance_approver_user_id;
