ThearchyHelios
86e52192a9
运行对比后端(变化三分法):两次运行按指标拆清是数据变了、口径变了还是模板 / SQL 变了,数据变化按维度归因
GET /api/runs/{id}/compare/base 找默认基准:定时任务发起的先找同一定时任务更早结束的一次,否则同一工作流、
同一运行类别;只挑封存过的终态运行,找不到 404。GET /api/runs/{id}/compare?base= 对比两次运行:两次都要
已结束、封存且核对一致(照搬证据接口的封存判定),否则 409;不是同一个工作流、同一次运行 422。只读,不追加
事件、不落工件。
engine/compare.py 是纯函数:
- 查询按「节点 + 第几次 + 工具」配对,配不上再按规范化 SQL 配;normalize_sql 判 same / params_only /
changed,结构变了的用 diff_facets 写出差在哪(时间范围排在最后);核查类查询不参与
- 口径卡同一节点按指标 id 配对,表达式、口径版本、小数位、单位、显示格式不同算口径变了
- 每个指标按 added/removed → 口径 → SQL 或上游配置 → 说不清 → 只参数 → 数据 的次序分类;输入落在快照上
的直接比两边快照的 SQL,不落在快照上的看写它的节点和画布上游
- 口径变了时严格拆分:旧表达式配这次的输入用推演重算的还原和求值算 f_old(x_new),十进制精确相减,两效应之和
逐位等于总变化;SQL 也变了、用到遮罩列、单位不同、旧叶子没记录的不拆并说明
- 维度归因按维度键配对两边的行、取变化最大的 10 个;度量之和等于输入的值(含合计行那一格)才给占比;截断、
度量列遮罩照实写;遮罩列、日期列、每期都不同的列不当维度
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