[iotdb] 12/14: fix issue iotdb-1219 (#3020)

[hxd]

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hxd pushed a commit to branch testcontainer
in repository https://gitbox.apache.org/repos/asf/iotdb.git

commit bd98a454a78f81a9ff9e836604e1706f29e2eb88
Author: Steve Yurong Su <steveyuron...@outlook.com>
AuthorDate: Fri Apr 16 16:50:07 2021 +0800

    fix issue iotdb-1219 (#3020)
---
 .../datastructure/row/ElasticSerializableRowRecordList.java | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git 
a/server/src/main/java/org/apache/iotdb/db/query/udf/datastructure/row/ElasticSerializableRowRecordList.java
 
b/server/src/main/java/org/apache/iotdb/db/query/udf/datastructure/row/ElasticSerializableRowRecordList.java
index a034abd..910c842 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/query/udf/datastructure/row/ElasticSerializableRowRecordList.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/query/udf/datastructure/row/ElasticSerializableRowRecordList.java
@@ -136,11 +136,16 @@ public class ElasticSerializableRowRecordList {
     if (!disableMemoryControl) {
       totalByteArrayLengthLimit +=
           (long) indexListOfTextFields.length * 
byteArrayLengthForMemoryControl;
-      for (int indexListOfTextField : indexListOfTextFields) {
-        Binary binary = (Binary) rowRecord[indexListOfTextField];
-        totalByteArrayLength += binary == null ? 0 : binary.getLength();
+
+      if (rowRecord == null) {
+        totalByteArrayLength += indexListOfTextFields.length * 
byteArrayLengthForMemoryControl;
+      } else {
+        for (int indexListOfTextField : indexListOfTextFields) {
+          Binary binary = (Binary) rowRecord[indexListOfTextField];
+          totalByteArrayLength += binary == null ? 0 : binary.getLength();
+        }
+        checkMemoryUsage();
       }
-      checkMemoryUsage();
     }
   }