{
    "summary": [
        {
            "name": "switchover_steps",
            "title": "切换步骤明细",
            "primary": ["id"],
            "catelog": "entity"
        }
    ],
    "fields": [
        {"name": "id", "title": "步骤ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "switchover_id", "title": "切换事件", "type": "str", "length": 32, "nullable": "no"},
        {"name": "seq", "title": "步骤序号", "type": "int", "nullable": "no"},
        {"name": "step_name", "title": "步骤名称", "type": "str", "length": 32, "nullable": "no"},
        {"name": "status", "title": "步骤状态", "type": "str", "length": 16, "nullable": "no", "default": "pending"},
        {"name": "output", "title": "执行输出", "type": "text"},
        {"name": "error", "title": "错误信息", "type": "text"},
        {"name": "started_at", "title": "开始时间", "type": "datetime"},
        {"name": "completed_at", "title": "完成时间", "type": "datetime"}
    ],
    "indexes": [
        {"name": "idx_ss_switchover", "idxtype": "index", "idxfields": ["switchover_id"]},
        {"name": "idx_ss_seq", "idxtype": "index", "idxfields": ["switchover_id", "seq"]}
    ],
    "codes": [
        {"field": "status", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='step_status'"},
        {"field": "switchover_id", "table": "switchover_logs", "valuefield": "id", "textfield": "event_type"}
    ]
}