perf: avoid correlated channel scans in portrait queries

internal/data/business/business_portrait.go

@@ -96,11 +96,13 @@ func (r *businessPortraitRepo) PlatformBusiness(ctx context.Context, key busines
 	return &business.PortraitPlatformBusiness{ID: po.ID, Account: po.Account, RealName: po.RealName, Level: po.Level, Status: po.Status, Commerce1: po.Commerce1, Commerce2: po.Commerce2, CreatedUnix: po.CreatedUnix}, nil
 }
 
-func portraitPromoteScope(db *gorm.DB, scope business.PortraitReportScope, sourceColumn, promoteColumn string) *gorm.DB {
+// Build an uncorrelated channel set once, so MySQL can use a semijoin instead
+// of reevaluating a descendant-tree predicate for each historical event.
+func portraitPromoteScope(db *gorm.DB, scope business.PortraitReportScope) *gorm.DB {
 	if scope.Root != nil {
-		return channelGameTree(db, business.ChannelGameScope{Root: scope.Root, IncludeSub: scope.IncludeSub}).Select("1").Where("p.source_db = " + sourceColumn + " AND p.id = " + promoteColumn)
+		return channelGameTree(db, business.ChannelGameScope{Root: scope.Root, IncludeSub: scope.IncludeSub}).Select("p.source_db,p.id")
 	}
-	q := db.Table("tab_promote scope_promote").Select("1").Where("scope_promote.source_db = " + sourceColumn + " AND scope_promote.id = " + promoteColumn)
+	q := db.Table("tab_promote scope_promote").Select("scope_promote.source_db,scope_promote.id")
 	if len(scope.Pairs) == 0 {
 		return q.Where("1=0")
 	}
@@ -115,7 +117,7 @@ func portraitReportQuery(db *gorm.DB, scope business.PortraitReportScope, table,
 	if len(scope.Sources) > 0 {
 		q = q.Where("r.source_db IN ?", scope.Sources)
 	}
-	return q.Where("EXISTS (?)", portraitPromoteScope(db, scope, "r.source_db", "r.promote_id"))
+	return q.Where("(r.source_db,r.promote_id) IN (?)", portraitPromoteScope(db, scope))
 }
 func portraitIdentity(db *gorm.DB, dedup bool) string {
 	if dedup {
@@ -249,7 +251,7 @@ func portraitHourly(db *gorm.DB, scope business.PortraitReportScope, result *bus
 		table, column, aggregate, condition string
 		series                              map[string]string
 	}{{"tab_user", "register_time", "COUNT(*)", "(r.puid = 0 OR r.puid IS NULL)", result.RegisterSeries}, {"tab_spend", "pay_time", "COALESCE(SUM(r.pay_amount),0)", "r.pay_status = 1", result.PaySeries}} {
-		q := db.Table(metric.table+" r").Where("r."+metric.column+" >= ? AND r."+metric.column+" < ?", start, end).Where(metric.condition).Where("EXISTS (?)", portraitPromoteScope(db, scope, "r.source_db", "r.promote_id"))
+		q := db.Table(metric.table+" r").Where("r."+metric.column+" >= ? AND r."+metric.column+" < ?", start, end).Where(metric.condition).Where("(r.source_db,r.promote_id) IN (?)", portraitPromoteScope(db, scope))
 		if len(scope.Sources) > 0 {
 			q = q.Where("r.source_db IN ?", scope.Sources)
 		}

internal/data/business/channel_metrics.go

@@ -125,7 +125,7 @@ func (r *channelRepo) Games(ctx context.Context, scope business.ChannelGameScope
 		mode = 1
 	}
 	query := func(table string, dedup int) *gorm.DB {
-		return db.Table(table+" r").Where("r.source_db = ? AND r.game_id > 0 AND r.dedup_mode = ?", scope.Root.SourceDB, dedup).Where("EXISTS (?)", channelGameTree(db, scope).Select("1").Where("p.id=r.promote_id AND p.source_db=r.source_db"))
+		return db.Table(table+" r").Where("r.source_db = ? AND r.game_id > 0 AND r.dedup_mode = ?", scope.Root.SourceDB, dedup).Where("(r.source_db,r.promote_id) IN (?)", channelGameTree(db, scope).Select("p.source_db,p.id"))
 	}
 	// 累计起点按当前人数口径的日汇总最早日期决定，与原画像查询一致。
 	begin := scope.BeginDate

internal/data/business/channel_portrait.go

@@ -42,7 +42,7 @@ func (r *channelPortraitRepo) EarliestDate(ctx context.Context, scope business.C
 		mode = 1
 	}
 	var result struct{ FirstDate *string }
-	q := db.Table("tab_sw_report_day r").Where("r.source_db = ? AND r.dedup_mode = ? AND r.game_id > 0", scope.Root.SourceDB, mode).Where("EXISTS (?)", channelGameTree(db, scope).Select("1").Where("p.source_db=r.source_db AND p.id=r.promote_id"))
+	q := db.Table("tab_sw_report_day r").Where("r.source_db = ? AND r.dedup_mode = ? AND r.game_id > 0", scope.Root.SourceDB, mode).Where("(r.source_db,r.promote_id) IN (?)", channelGameTree(db, scope).Select("p.source_db,p.id"))
 	if err := q.Select("CAST(MIN(r.stat_date) AS CHAR) AS first_date").Scan(&result).Error; err != nil {
 		return "", false, business.ErrStorage
 	}
@@ -56,7 +56,7 @@ func channelTierKeys(db *gorm.DB, scope business.ChannelGameScope) *gorm.DB {
 	if scope.IDCardDedup {
 		mode = 1
 	}
-	return db.Table("tab_sw_report_day_key r").Where("r.source_db = ? AND r.dedup_mode = ? AND r.game_id > 0 AND r.metric = 1 AND r.stat_date >= ? AND r.stat_date <= ? AND r.identity_key IS NOT NULL", scope.Root.SourceDB, mode, scope.BeginDate, scope.EndDate).Where("EXISTS (?)", channelGameTree(db, scope).Select("1").Where("p.source_db=r.source_db AND p.id=r.promote_id"))
+	return db.Table("tab_sw_report_day_key r").Where("r.source_db = ? AND r.dedup_mode = ? AND r.game_id > 0 AND r.metric = 1 AND r.stat_date >= ? AND r.stat_date <= ? AND r.identity_key IS NOT NULL", scope.Root.SourceDB, mode, scope.BeginDate, scope.EndDate).Where("(r.source_db,r.promote_id) IN (?)", channelGameTree(db, scope).Select("p.source_db,p.id"))
 }
 func (r *channelPortraitRepo) TierData(ctx context.Context, scope business.ChannelGameScope) (*business.ChannelTierData, error) {
 	result := &business.ChannelTierData{Available: true, RegisterKeys: []string{}, Payments: []*business.ChannelIdentityPay{}}
@@ -94,7 +94,7 @@ func (r *channelPortraitRepo) TierData(ctx context.Context, scope business.Chann
 		}
 	}
 	// 分层金额按历史成功支付累计，不受画像周期或注册日期范围限制。
-	q := db.Table("tab_spend s").Where("s.source_db = ? AND s.pay_status = 1", scope.Root.SourceDB).Where("EXISTS (?)", channelGameTree(db, scope).Select("1").Where("p.source_db=s.source_db AND p.id=s.promote_id"))
+	q := db.Table("tab_spend s").Where("s.source_db = ? AND s.pay_status = 1", scope.Root.SourceDB).Where("(s.source_db,s.promote_id) IN (?)", channelGameTree(db, scope).Select("p.source_db,p.id"))
 	if scope.IDCardDedup {
 		var rows []struct {
 			IDCard *string `gorm:"column:idcard"`