{
    "summary": [
        {
            "name": "tk_tickets",
            "title": "工单主表",
            "primary": ["id"],
            "catelog": "entity"
        }
    ],
    "fields": [
        {"name": "id", "title": "主键ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "ticket_no", "title": "工单编号", "type": "str", "length": 32, "nullable": "no"},
        {"name": "title", "title": "问题标题", "type": "str", "length": 200, "nullable": "no"},
        {"name": "description", "title": "问题描述", "type": "text"},
        {"name": "category", "title": "问题分类", "type": "str", "length": 32, "default": "other"},
        {"name": "priority", "title": "优先级", "type": "str", "length": 16, "default": "normal"},
        {"name": "status", "title": "工单状态", "type": "str", "length": 32, "nullable": "no", "default": "new"},
        {"name": "customer_org_id", "title": "客户机构ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "customer_user_id", "title": "客户用户ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "current_role", "title": "当前受理角色", "type": "str", "length": 64},
        {"name": "current_assignee", "title": "当前受理人", "type": "str", "length": 32},
        {"name": "processing_owner", "title": "agent处理锁标记", "type": "str", "length": 64},
        {"name": "followup_count", "title": "客户追问次数", "type": "int", "default": "0"},
        {"name": "agent_fail_rounds", "title": "agent连续失败轮数", "type": "int", "default": "0"},
        {"name": "closed_at", "title": "关闭时间", "type": "timestamp"},
        {"name": "close_reason", "title": "关闭原因", "type": "str", "length": 32},
        {"name": "created_at", "title": "创建时间", "type": "timestamp", "nullable": "no"},
        {"name": "updated_at", "title": "更新时间", "type": "timestamp", "nullable": "no"}
    ],
    "indexes": [
        {"name": "uk_tk_no", "idxtype": "unique", "idxfields": ["ticket_no"]},
        {"name": "idx_tk_cust", "idxtype": "index", "idxfields": ["customer_org_id", "status"]},
        {"name": "idx_tk_status", "idxtype": "index", "idxfields": ["status"]},
        {"name": "idx_tk_role_status", "idxtype": "index", "idxfields": ["current_role", "status"]},
        {"name": "idx_tk_assignee", "idxtype": "index", "idxfields": ["current_assignee", "status"]}
    ],
    "codes": [
        {"field": "category", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='tk_category'"},
        {"field": "priority", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='tk_priority'"},
        {"field": "status", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='tk_status'"},
        {"field": "close_reason", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='tk_close_reason'"}
    ]
}