From 590fe36951ee3022a1eb052579fff075f1e945d1 Mon Sep 17 00:00:00 2001
From: "Jinrui.Zhang" <xingtanzjr@gmail.com>
Date: Mon, 28 Aug 2023 16:38:57 +0800
Subject: [PATCH] fix NPE issue in lazy reader

---
 .../read/reader/page/LazyLoadAlignedPagePointReader.java     | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/iotdb-core/tsfile/src/main/java/org/apache/iotdb/tsfile/read/reader/page/LazyLoadAlignedPagePointReader.java b/iotdb-core/tsfile/src/main/java/org/apache/iotdb/tsfile/read/reader/page/LazyLoadAlignedPagePointReader.java
index 121928357b..e967305e5a 100644
--- a/iotdb-core/tsfile/src/main/java/org/apache/iotdb/tsfile/read/reader/page/LazyLoadAlignedPagePointReader.java
+++ b/iotdb-core/tsfile/src/main/java/org/apache/iotdb/tsfile/read/reader/page/LazyLoadAlignedPagePointReader.java
@@ -60,7 +60,10 @@ public class LazyLoadAlignedPagePointReader implements IPointReader {
       boolean someValueNotNull = false;
       TsPrimitiveType[] valuesInThisRow = new TsPrimitiveType[valueReaders.size()];
       for (int i = 0; i < valueReaders.size(); i++) {
-        TsPrimitiveType value = valueReaders.get(i).nextValue(currentTime, timeIndex);
+        TsPrimitiveType value =
+            valueReaders.get(i) == null
+                ? null
+                : valueReaders.get(i).nextValue(currentTime, timeIndex);
         someValueNotNull = someValueNotNull || (value != null);
         valuesInThisRow[i] = value;
       }
-- 
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