{
    "summary": [
        {
            "name": "approval_task",
            "title": "审批任务",
            "primary": "id",
            "catelog": "entity"
        }
    ],
    "fields": [
        {
            "name": "id",
            "title": "ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "主键UUID"
        },
        {
            "name": "instance_id",
            "title": "实例ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "关联的审批实例"
        },
        {
            "name": "step_id",
            "title": "步骤ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "关联的审批步骤"
        },
        {
            "name": "approver_id",
            "title": "审批人ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "具体审批人用户ID"
        },
        {
            "name": "status",
            "title": "状态",
            "type": "str",
            "length": 20,
            "nullable": "no",
            "comments": "pending/approved/rejected"
        },
        {
            "name": "decision",
            "title": "决策",
            "type": "str",
            "length": 1000,
            "nullable": "yes",
            "comments": "审批意见"
        },
        {
            "name": "org_id",
            "title": "组织ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "多租户组织隔离"
        },
        {
            "name": "assigned_at",
            "title": "分配时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "任务分配时间"
        },
        {
            "name": "completed_at",
            "title": "完成时间",
            "type": "timestamp",
            "nullable": "yes",
            "comments": "任务完成时间"
        },
        {
            "name": "due_at",
            "title": "截止时间",
            "type": "timestamp",
            "nullable": "yes",
            "comments": "任务截止时间"
        }
    ],
    "indexes": [
        {
            "name": "idx_task_instance",
            "idxtype": "index",
            "idxfields": ["instance_id"]
        },
        {
            "name": "idx_task_approver",
            "idxtype": "index",
            "idxfields": ["approver_id"]
        },
        {
            "name": "idx_task_status",
            "idxtype": "index",
            "idxfields": ["status"]
        }
    ],
    "codes": [
        {
            "field": "status",
            "table": "appcodes",
            "valuefield": "k",
            "textfield": "v",
            "cond": "codetype='TASK_STATUS'"
        }
    ]
}