add assert

apache · Oct 17, 2023 · 43df657 · 43df657
1 parent 87c6063
commit 43df657
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/sql/src/main/java/org/apache/druid/sql/calcite/rel/DruidQuery.java b/sql/src/main/java/org/apache/druid/sql/calcite/rel/DruidQuery.java
@@ -277,6 +277,7 @@ public static DruidQuery fromPartialQuery(
 
     if (partialQuery.getWindow() != null) {
       if (plannerContext.featureAvailable(EngineFeature.WINDOW_FUNCTIONS)) {
+        assert (virtualColumnRegistry.isEmpty());
         windowing = Preconditions.checkNotNull(
             Windowing.fromCalciteStuff(
                 partialQuery,