perf: keep default ledger queries on platform time indexes

internal/data/business/ledger_test.go

@@ -3,12 +3,54 @@ package business
 import (
 	"context"
 	"fmt"
+	"reflect"
 	"testing"
 
 	"gorm.io/gorm"
 	"kra/internal/biz/business"
 )
 
+func TestUnfilteredLedgerKeepsEveryStoredPlatform(t *testing.T) {
+	db, repo, _, filter := prepareLedgerData(t)
+	for _, query := range []string{
+		"INSERT INTO tab_user(id,source_db,register_time,promote_id,puid) VALUES(90,'historical','1500',0,0)",
+		"INSERT INTO tab_spend(id,source_db,user_id,pay_amount,pay_time,pay_status,promote_id) VALUES(990,'historical',90,12.34,1500,1,0)",
+	} {
+		if err := db.Exec(query).Error; err != nil {
+			t.Fatal(err)
+		}
+	}
+	scope := business.LedgerScope{Viewer: business.UserScope{All: true}, Unrestricted: true, IncludeSub: true}
+	filter.Sources = nil
+	registrations, err := repo.Registrations(context.Background(), scope, filter, business.LedgerListOptions{Limit: 30})
+	if err != nil {
+		t.Fatal(err)
+	}
+	spends, err := repo.Spends(context.Background(), scope, filter, business.LedgerListOptions{Limit: 30})
+	if err != nil {
+		t.Fatal(err)
+	}
+	filter.Sources = []string{"lx", "hw", "historical"}
+	expectedRegistrations, err := repo.Registrations(context.Background(), scope, filter, business.LedgerListOptions{Limit: 30})
+	if err != nil {
+		t.Fatal(err)
+	}
+	expectedSpends, err := repo.Spends(context.Background(), scope, filter, business.LedgerListOptions{Limit: 30})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !reflect.DeepEqual(registrations, expectedRegistrations) || !reflect.DeepEqual(spends, expectedSpends) {
+		t.Fatal("omitted platform filter lost historical, official or orphan rows")
+	}
+	if err := db.Exec("INSERT INTO tab_user(id,source_db,register_time,promote_id,puid) VALUES(91,NULL,'1500',0,0)").Error; err != nil {
+		t.Fatal(err)
+	}
+	all := business.LedgerFilter{}
+	if err := resolveLedgerSources(db, "tab_user", &all); err != nil || len(all.Sources) != 0 {
+		t.Fatalf("NULL platform must retain unfiltered semantics: %+v %v", all, err)
+	}
+}
+
 func prepareLedgerData(t *testing.T) (*gorm.DB, business.LedgerRepo, business.LedgerScope, business.LedgerFilter) {
 	t.Helper()
 	db, _ := prepareChannels(t)