[GitHub] [spark] srowen commented on a change in pull request #28112: [SPARK-31315][SQL][FOLLOWUP][MINOR] Fix some typo and improve comments.

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srowen commented on a change in pull request #28112: [SPARK-31315][SQL][FOLLOWUP][MINOR] Fix some typo and improve comments.
URL: https://github.com/apache/spark/pull/28112#discussion_r403109579
 
 

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 File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala
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 @@ -1309,9 +1309,9 @@ object CodeGenerator extends Logging {
   // bytecode instruction
   final val MUTABLESTATEARRAY_SIZE_LIMIT = 32768
 
-  // The java source code generated by whole codegen is compiled on the Driver side and sent to
-  // each Executor as the execution code to process data. This is very effective in processing
-  // large amounts of data in a distributed environment. However, in the test environment,
+  // The Java source code generated by whole-stage codegen on the Driver side is sent to each
 
 Review comment:
   So it's generated on the driver and compiled on the executor, you're sure? seems OK

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