[spark] branch master updated: [SPARK-25863][SPARK-21871][SQL] Check if code size statistics is empty or not in updateAndGetCompilationStats

[ya...@apache.org]

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The following commit(s) were added to refs/heads/master by this push:
     new 315c95c  [SPARK-25863][SPARK-21871][SQL] Check if code size statistics is empty or not in updateAndGetCompilationStats
315c95c is described below

commit 315c95c39953f677220aebc4592ad434019005c0
Author: Takeshi Yamamuro <ya...@apache.org>
AuthorDate: Thu Mar 7 17:25:22 2019 +0900

    [SPARK-25863][SPARK-21871][SQL] Check if code size statistics is empty or not in updateAndGetCompilationStats
    
    ## What changes were proposed in this pull request?
    `CodeGenerator.updateAndGetCompilationStats` throws an unsupported exception for empty code size statistics. This pr added code to check if it is empty or not.
    
    ## How was this patch tested?
    Pass Jenkins.
    
    Closes #23947 from maropu/SPARK-21871-FOLLOWUP.
    
    Authored-by: Takeshi Yamamuro <ya...@apache.org>
    Signed-off-by: Takeshi Yamamuro <ya...@apache.org>
---
 .../spark/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 b9365f0..de3223e 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
+    }
   }
 
   /**


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