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17168ERP/review_report.txt
yiming 9969417bd8 優化 FollowerController.cs 的子查詢性能
問題:
Line 345 將家族成員 ID 載入內存(ToList)
- 如果家族有 100+ 成員,載入 100-400 bytes

優化:
移除 ToList(),改為使用 IQueryable 子查詢
- var ccList = cc.ToList(); // 移除
- 直接使用 cc 進行 Contains 查詢
- 生成 SQL: WHERE num IN (SELECT...) OR leader IN (SELECT...)

效果:
✓ 減少內存占用:100-400 bytes → 0
✓ 完全在數據庫執行
✓ SQL 優化器可以更好地優化查詢計劃

對比:
- 原始版本(載入內存):2 次查詢
- 優化版本(子查詢):1 次查詢(最佳)
2025-11-12 17:30:53 +08:00

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🔍 AsEnumerable/AsQueryable/ToList 完整 REVIEW
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檢查範圍Batch 1-3 所有已修改文件
檢查標準:
✅ 最佳選擇 - 性能和可讀性都最優
⚠️ 可優化 - 可以進一步優化
❌ 需修正 - 存在明顯問題
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