[GitHub] dongjoon-hyun opened a new pull request #23862: [SPARK-26958][SQL][TEST] Add NestedSchemaPruningBenchmark

[GitBox <gi...@apache.org>]

dongjoon-hyun opened a new pull request #23862: [SPARK-26958][SQL][TEST] Add NestedSchemaPruningBenchmark
URL: https://github.com/apache/spark/pull/23862
 
 
   ## What changes were proposed in this pull request?
   
   This adds `NestedSchemaPruningBenchmark` to show the nested schema pruning performance clearly and to verify new PR's performance benefit and to prevent the future performance degradation.
   
   ## How was this patch tested?
   
   Manually run the benchmark.
   
   ```
   SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "sql/test:runMain org.apache.spark.sql.execution.benchmark.NestedSchemaPruningBenchmark"
   ```

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