{
    "summary": [
        {
            "name": "approval_instance",
            "title": "审批实例",
            "primary": "id",
            "catelog": "entity"
        }
    ],
    "fields": [
        {
            "name": "id",
            "title": "ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "主键UUID"
        },
        {
            "name": "workflow_id",
            "title": "工作流ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "关联的工作流定义"
        },
        {
            "name": "module_type",
            "title": "模块类型",
            "type": "str",
            "length": 50,
            "nullable": "no",
            "comments": "customer/opportunity/contract/financial"
        },
        {
            "name": "module_record_id",
            "title": "模块记录ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "关联的具体业务记录ID"
        },
        {
            "name": "current_step_id",
            "title": "当前步骤ID",
            "type": "str",
            "length": 32,
            "nullable": "yes",
            "comments": "当前待审批的步骤"
        },
        {
            "name": "status",
            "title": "状态",
            "type": "str",
            "length": 20,
            "nullable": "no",
            "comments": "pending/approved/rejected/cancelled"
        },
        {
            "name": "initiator_id",
            "title": "发起人ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "审批发起人用户ID"
        },
        {
            "name": "title",
            "title": "标题",
            "type": "str",
            "length": 200,
            "nullable": "no",
            "comments": "审批标题"
        },
        {
            "name": "description",
            "title": "描述",
            "type": "str",
            "length": 1000,
            "nullable": "yes",
            "comments": "审批详细描述"
        },
        {
            "name": "org_id",
            "title": "组织ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "多租户组织隔离"
        },
        {
            "name": "created_at",
            "title": "创建时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "创建时间"
        },
        {
            "name": "completed_at",
            "title": "完成时间",
            "type": "timestamp",
            "nullable": "yes",
            "comments": "完成时间"
        }
    ],
    "indexes": [
        {
            "name": "idx_instance_workflow",
            "idxtype": "index",
            "idxfields": ["workflow_id"]
        },
        {
            "name": "idx_instance_module",
            "idxtype": "index",
            "idxfields": ["module_type", "module_record_id"]
        },
        {
            "name": "idx_instance_status",
            "idxtype": "index",
            "idxfields": ["status"]
        },
        {
            "name": "idx_instance_org",
            "idxtype": "index",
            "idxfields": ["org_id"]
        }
    ],
    "codes": [
        {
            "field": "status",
            "table": "appcodes",
            "valuefield": "k",
            "textfield": "v",
            "cond": "codetype='APPROVAL_STATUS'"
        }
    ]
}