全项目数据库性能优化

2026-08-20 23:04:52 +08:00
parent 1c8eda2b5f
commit b5d46b2381
13 changed files with 168 additions and 43 deletions
@@ -47,13 +47,15 @@ export async function createRealtimeEvent(input: {
  const row = result.rows[0]
  if (!row) throw new Error('realtime_event_create_failed')

-  // 事件仅用于短期断线补发，控制表体积和重连回放成本。
-  await query(
-    `
-      DELETE FROM realtime_events
-      WHERE id < GREATEST(0, (SELECT COALESCE(MAX(id), 0) - 500 FROM realtime_events))
-    `,
-  )
+  // 事件仅用于短期断线补发；每 100 条清理一次，避免每次业务事件都额外触发 DELETE。
+  if (Number(row.id) % 100 === 0) {
+    await query(
+      `
+        DELETE FROM realtime_events
+        WHERE id < GREATEST(0, (SELECT COALESCE(MAX(id), 0) - 500 FROM realtime_events))
+      `,
+    )
+  }
  return row
 }