perf: 筛选统计去掉 JSON 兜底，并补上 orders 覆盖索引

去掉 work_orders 堆访问后，JOIN 会把 orders 整表扫进 Hash Right Join。
领取页在快照新鲜时不再打上游；快手出网统一 10 秒超时。倒计时改为自适应间隔。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/backend/src/services/scheduler/data-retention-job.test.ts

@@ -23,6 +23,23 @@ test('保留清理必须覆盖 work_order_events，否则这张只增不减的
   )
 })
 
+test('保留任务要回填漏写的付款派生列，并在有命中时打日志', async () => {
+  const src = await readJobSource()
+  assert.ok(
+    src.includes('source_order_amount_fen IS NULL'),
+    '只处理派生列为空的行，避免把合法 0 或已落列的金额改掉',
+  )
+  assert.ok(
+    src.includes("material_json->'source'->>'orderAmountFen'"),
+    '回填口径必须与 083 / resolveSourceOrderAmountFen 相同',
+  )
+  assert.ok(src.includes("~ '^-?[0-9]{1,15}$'"), '超长数字不能 ::bigint，否则整次保留任务失败')
+  assert.ok(
+    src.includes('source_order_amount_fen 出现漏写'),
+    '有命中必须打日志，否则金额静默回退 orders.total_amount',
+  )
+})
+
 test('保留清理默认窗口：敏感报文/事件 180 天，审计 365 天，工单事件 180 天', async () => {
   const defaults = await readFile(new URL('../../config/defaults.ts', import.meta.url), 'utf8')
   for (const line of [

apps/backend/src/services/scheduler/data-retention-job.ts

@@ -1,5 +1,6 @@
 import { query } from '../../db/client.js'
 import { runtimeConfig } from '../../config/runtime.js'
+import { logWarn } from '../../utils/logger.js'
 import { getWorkerProductMatchConfig } from '../worker-platform/worker-product-match-config-service.js'
 import { pruneWorkProductMatchLogs } from '../../repositories/worker-platform/product-match-repo.js'
 
@@ -13,6 +14,7 @@ export type DataRetentionResult = {
   workOrderEventRows: number
   matchLogRows: number
   matchLogDeletedRows: number
+  sourceOrderAmountBackfillRows: number
 }
 
 /** 清理敏感原始报文并删除已过保留期的事件/审计记录。 */
@@ -45,6 +47,14 @@ export async function runDataRetentionJob(): Promise<DataRetentionResult> {
   const webhookEventRows = await deleteOldRowsInBatches('webhook_events', webhookEventDays)
   const auditLogRows = await deleteOldRowsInBatches('admin_audit_logs', auditLogDays)
   const workOrderEventRows = await deleteOldRowsInBatches('work_order_events', workOrderEventDays)
+  // 统计热路径已不再读 material_json。若将来有第三个写入点忘了维护派生列，
+  // 金额会静默回退 orders.total_amount。这里把漏写补上并打日志，让口径变化可见。
+  const sourceOrderAmountBackfillRows = await backfillMissingSourceOrderAmount()
+  if (sourceOrderAmountBackfillRows > 0) {
+    logWarn('[data-retention]', 'source_order_amount_fen 出现漏写，已按 JSON 回填', {
+      rows: sourceOrderAmountBackfillRows,
+    })
+  }
 
   return {
     status: 'ok',
@@ -56,8 +66,23 @@ export async function runDataRetentionJob(): Promise<DataRetentionResult> {
     webhookEventRows,
     auditLogRows,
     workOrderEventRows,
+    sourceOrderAmountBackfillRows,
   }
 }
+
+/** 只补「列为 NULL 且 JSON 里仍有 1~15 位整数」的行。正常应为 0。 */
+async function backfillMissingSourceOrderAmount() {
+  const result = await query(
+    `
+      UPDATE work_orders
+      SET source_order_amount_fen = (material_json->'source'->>'orderAmountFen')::bigint
+      WHERE source_order_amount_fen IS NULL
+        AND COALESCE(material_json->'source'->>'orderAmountFen', '') ~ '^-?[0-9]{1,15}$'
+    `,
+  )
+  return result.rowCount || 0
+}
+
 async function scrubJsonColumnInBatches(
   table: 'orders' | 'kuaishou_industry_vouchers' | 'work_product_match_logs',
   dateColumn: 'created_at' | 'updated_at',

apps/backend/src/services/scheduler/scheduler-service.ts

@@ -164,6 +164,7 @@ async function runJob(job: JsonObject, { manual = false }: { manual?: boolean }
             taskEventRows: Number(summary.taskEventRows || 0),
             webhookEventRows: Number(summary.webhookEventRows || 0),
             auditLogRows: Number(summary.auditLogRows || 0),
+            sourceOrderAmountBackfillRows: Number(summary.sourceOrderAmountBackfillRows || 0),
           }
         : {}),
     })