MaxGekk commented on a change in pull request #25782: [SPARK-29074][SQL] 
Optimize `date_format` for foldable `fmt`
URL: https://github.com/apache/spark/pull/25782#discussion_r324413104
 
 

 ##########
 File path: sql/core/benchmarks/DateTimeBenchmark-results.txt
 ##########
 @@ -168,8 +168,8 @@ Java HotSpot(TM) 64-Bit Server VM 1.8.0_202-b08 on Mac OS 
X 10.14.3
 Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz
 format date:                             Best/Avg Time(ms)    Rate(M/s)   Per 
Row(ns)   Relative
 
------------------------------------------------------------------------------------------------
-format date wholestage off                    7180 / 7181          1.4         
718.0       1.0X
-format date wholestage on                     7051 / 7194          1.4         
705.1       1.0X
+format date wholestage off                    4787 / 4839          2.1         
478.7       1.0X
+format date wholestage on                     4736 / 4802          2.1         
473.6       1.0X
 
 Review comment:
   Next time we will update the file entirely since the format was changed 
slightly. For now I think it is fine to update the numbers only (The software 
(and hardware) on my laptop is the same so far).

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