From c359b8ddf4d52d2529d7a0b7dd24f962e128dd6e Mon Sep 17 00:00:00 2001
From: Takeshi Yamamuro <yamamuro@apache.org>
Date: Mon, 4 Mar 2019 08:39:34 +0900
Subject: [PATCH] Fix

---
 .../sql/catalyst/expressions/codegen/CodeGenerator.scala    | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala
index b9365f005234..de3223efce54 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala
@@ -1352,7 +1352,11 @@ object CodeGenerator extends Logging {
       }
     }.flatten
 
-    codeSizes.max
+    if (codeSizes.nonEmpty) {
+      codeSizes.max
+    } else {
+      0
+    }
   }
 
   /**