From 90e7a809d02fd6150d5aea48863d7c8e3f058007 Mon Sep 17 00:00:00 2001
From: Weihao Li <60659567+Wei-hao-Li@users.noreply.github.com>
Date: Tue, 31 Dec 2024 16:31:25 +0800
Subject: [PATCH] Add annotation for prepareFinal method in GroupedAccumulator

---
 .../relational/aggregation/grouped/GroupedAccumulator.java    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/execution/operator/source/relational/aggregation/grouped/GroupedAccumulator.java b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/execution/operator/source/relational/aggregation/grouped/GroupedAccumulator.java
index 8f628718f68d..a39ef2f2d0fb 100644
--- a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/execution/operator/source/relational/aggregation/grouped/GroupedAccumulator.java
+++ b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/execution/operator/source/relational/aggregation/grouped/GroupedAccumulator.java
@@ -36,6 +36,10 @@ public interface GroupedAccumulator {
 
   void evaluateFinal(int groupId, ColumnBuilder columnBuilder);
 
+  /**
+   * This interface will be used for order by in agg function (not implemented), implementations are
+   * all empty now.
+   */
   void prepareFinal();
 
   void reset();