Fix UT

qianheng-aws · qianheng-aws · commit b161a3b655ce · 2025-12-24T13:56:57.000+08:00
Signed-off-by: Heng Qian &lt;qianheng@amazon.com&gt;
diff --git a/core/src/main/java/org/opensearch/sql/calcite/plan/PPLAggregateConvertRule.java b/core/src/main/java/org/opensearch/sql/calcite/plan/PPLAggregateConvertRule.java
@@ -99,6 +99,8 @@ public void apply(RelOptRuleCall call, LogicalAggregate aggregate, LogicalProjec
                   return ref;
                 })
             .toList();
+    // Stop processing if there is no converted agg call args
+    if (convertedAggCallArgs.isEmpty()) return;
     relBuilder.project(newChildProjects);
     RelNode newInput = relBuilder.peek();
 
