From c54c2f803527d2f699f9a78ddfb0740b3ccda904 Mon Sep 17 00:00:00 2001
From: Kikyou1997 <33112463+Kikyou1997@users.noreply.github.com>
Date: Thu, 29 Dec 2022 21:24:33 +0800
Subject: [PATCH] [fix](statistics) fix npe when __internal_schema not created
 (#15464)

---
 .../org/apache/doris/statistics/util/StatisticsUtil.java     | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/statistics/util/StatisticsUtil.java b/fe/fe-core/src/main/java/org/apache/doris/statistics/util/StatisticsUtil.java
index 16a4a66ffc..08822bb27c 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/statistics/util/StatisticsUtil.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/statistics/util/StatisticsUtil.java
@@ -53,10 +53,12 @@ import org.apache.doris.system.SystemInfoService;
 import org.apache.doris.thrift.TUniqueId;
 
 import com.google.common.base.Preconditions;
+import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.text.StringSubstitutor;
 import org.apache.thrift.TException;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
@@ -99,6 +101,9 @@ public class StatisticsUtil {
 
     public static List<ColumnStatistic> deserializeToColumnStatistics(List<ResultRow> resultBatches)
             throws Exception {
+        if (CollectionUtils.isEmpty(resultBatches)) {
+            return Collections.emptyList();
+        }
         return resultBatches.stream().map(ColumnStatistic::fromResultRow).collect(Collectors.toList());
     }