dongjoon-hyun commented on issue #25851: [SPARK-29172][SQL] Improve shown message on sql show() URL: https://github.com/apache/spark/pull/25851#issuecomment-533315949 @TomokoKomiyama . Thank you for making a PR, but this causes a severe regression as @srowen and @kiszk suggested in the above. I can show you by example. **BEFORE** ```scala scala> spark.version res1: String = 2.4.4 scala> spark.time(spark.range(1000000000000L).show(1)) +---+ | id| +---+ | 0| +---+ only showing top 1 row Time taken: 47 ms ``` **This PR** ```scala scala> spark.version res5: String = 3.0.0-SNAPSHOT scala> spark.time(spark.range(1000000000000L).show(1)) +---+ | id| +---+ | 0| +---+ only showing top 1 / 1000000000000 row Time taken: 4820 ms ``` I'll close this PR due to the above reason. I hope we can meet in another your PR. Thanks!
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