[jira] [Commented] (SPARK-35421) Remove redundant ProjectExec from streaming queries with V2Relation

["Apache Spark (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-35421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17345959#comment-17345959 ] 

Apache Spark commented on SPARK-35421:
--------------------------------------

User 'sarutak' has created a pull request for this issue:
https://github.com/apache/spark/pull/32570

> Remove redundant ProjectExec from streaming queries with V2Relation
> -------------------------------------------------------------------
>
>                 Key: SPARK-35421
>                 URL: https://issues.apache.org/jira/browse/SPARK-35421
>             Project: Spark
>          Issue Type: Improvement
>          Components: Structured Streaming
>    Affects Versions: 3.2.0
>            Reporter: Kousuke Saruta
>            Assignee: Kousuke Saruta
>            Priority: Major
>
> Streaming queries with V2Relation can have redundant ProjectExec in it's physical plan.
> You can easily reproduce with the following code.
> {code}
> import org.apache.spark.sql.streaming.Trigger
> val query = spark.
>   readStream.
>   format("rate").
>   option("rowsPerSecond", 1000).
>   option("rampUpTime", "10s").
>   load().
>   selectExpr("timestamp", "100",  "value").  
>   writeStream.
>   format("console").
>   trigger(Trigger.ProcessingTime("5 seconds")).
>   // trigger(Trigger.Continuous("5 seconds")). // You can reproduce with continuous processing too.
>   outputMode("append").
>   start()
> {code}



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