perf: IoT 卡 30M 行分页查询优化(P95 17.9s → <500ms)
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- 新增 is_standalone 物化列 + 触发器自动维护(迁移 056)
- 并行查询拆分:多店铺 IN 查询拆为 per-shop goroutine 并行 Index Scan
- 两阶段延迟 Join:深度分页(page≥50)走覆盖索引 Index Only Scan 取 ID 再回表
- COUNT 缓存:per-shop 并行 COUNT + Redis 30 分钟 TTL
- 索引优化:删除有害全局索引、新增 partial composite indexes(迁移 057/058)
- ICCID 模糊搜索路径隔离:trigram GIN 索引走独立查询路径
- 慢查询阈值从 100ms 调整为 500ms
- 新增 30M 测试数据种子脚本和 benchmark 工具
This commit is contained in:
2026-02-24 16:23:02 +08:00
parent c665f32976
commit f32d32cd36
20 changed files with 2705 additions and 50 deletions

View File

@@ -10,6 +10,7 @@ import (
"github.com/break/junhong_cmp_fiber/internal/store/postgres"
"github.com/break/junhong_cmp_fiber/pkg/constants"
"github.com/break/junhong_cmp_fiber/pkg/errors"
"github.com/break/junhong_cmp_fiber/pkg/middleware"
"go.uber.org/zap"
"gorm.io/gorm"
)
@@ -125,6 +126,19 @@ func (s *Service) ListStandalone(ctx context.Context, req *dto.ListStandaloneIot
filters["series_id"] = *req.SeriesID
}
// 代理用户注入 subordinate_shop_ids让 Store 层走并行查询路径
// 避免 PG 对 shop_id IN (...) + ORDER BY 选择全表扫描
userType := middleware.GetUserTypeFromContext(ctx)
if userType == constants.UserTypeAgent {
shopID := middleware.GetShopIDFromContext(ctx)
if shopID > 0 {
subordinateIDs, err := s.shopStore.GetSubordinateShopIDs(ctx, shopID)
if err == nil && len(subordinateIDs) > 1 {
filters["subordinate_shop_ids"] = subordinateIDs
}
}
}
cards, total, err := s.iotCardStore.ListStandalone(ctx, opts, filters)
if err != nil {
return nil, err