fixed benchmark

db/helpers.go

@@ -3191,13 +3191,7 @@ SELECT
        THEN 100.0 * agg.gold_hits / agg.samples_present
        ELSE NULL END AS "Gold"
 FROM agg
-JOIN totals ON totals."Vcenter" = agg."Vcenter"
-GROUP BY
-  agg."InventoryId", agg."Name", agg."Vcenter", agg."VmId", agg."EventKey", agg."CloudId",
-  agg."Datacenter", agg."Cluster", agg."Folder",
-  agg."IsTemplate", agg."PoweredOn", agg."SrmPlaceholder", agg."VmUuid",
-  agg.any_creation, agg.any_deletion, agg.first_present, agg.last_present,
-  totals.total_samples, totals.max_snapshot;
+JOIN totals ON totals."Vcenter" = agg."Vcenter";
 `, unionQuery, tableName)
 	return insert, nil
 }

db/helpers_sql_builder_test.go

@@ -0,0 +1,24 @@
+package db
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestBuildDailySummaryInsertDoesNotGroupFinalAggJoin(t *testing.T) {
+	query, err := BuildDailySummaryInsert("inventory_daily_summary_20260101", "SELECT 1")
+	if err != nil {
+		t.Fatalf("BuildDailySummaryInsert failed: %v", err)
+	}
+
+	if !strings.Contains(query, `FROM agg
+JOIN totals ON totals."Vcenter" = agg."Vcenter";`) {
+		t.Fatalf("expected final agg/totals join with terminator, query tail changed unexpectedly")
+	}
+
+	if strings.Contains(query, `FROM agg
+JOIN totals ON totals."Vcenter" = agg."Vcenter"
+GROUP BY`) {
+		t.Fatalf("unexpected final GROUP BY after agg/totals join; this breaks Postgres SQLSTATE 42803")
+	}
+}