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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2022/02/25 04:28:00 UTC
[jira] [Commented] (SPARK-38322) Support query stage show runtime statistics in formatted explain mode
[ https://issues.apache.org/jira/browse/SPARK-38322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17497899#comment-17497899 ]
Apache Spark commented on SPARK-38322:
--------------------------------------
User 'ulysses-you' has created a pull request for this issue:
https://github.com/apache/spark/pull/35658
> Support query stage show runtime statistics in formatted explain mode
> ---------------------------------------------------------------------
>
> Key: SPARK-38322
> URL: https://issues.apache.org/jira/browse/SPARK-38322
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: XiDuo You
> Priority: Major
>
> The formatted explalin mode is the powerful explain mode to show the details of query plan. In AQE, the query stage know its statistics if has already materialized. So it can help to quick check the conversion of plan, e.g. join selection.
> A simple example:
> {code:java}
> SELECT * FROM t JOIN t2 ON t.c = t2.c;{code}
>
> {code:java}
> == Physical Plan ==
> AdaptiveSparkPlan (21)
> +- == Final Plan ==
> * SortMergeJoin Inner (13)
> :- * Sort (6)
> : +- AQEShuffleRead (5)
> : +- ShuffleQueryStage (4), Statistics(sizeInBytes=16.0 B, rowCount=1)
> : +- Exchange (3)
> : +- * Filter (2)
> : +- Scan hive default.t (1)
> +- * Sort (12)
> +- AQEShuffleRead (11)
> +- ShuffleQueryStage (10), Statistics(sizeInBytes=16.0 B, rowCount=1)
> +- Exchange (9)
> +- * Filter (8)
> +- Scan hive default.t2 (7)
> +- == Initial Plan ==
> SortMergeJoin Inner (20)
> :- Sort (16)
> : +- Exchange (15)
> : +- Filter (14)
> : +- Scan hive default.t (1)
> +- Sort (19)
> +- Exchange (18)
> +- Filter (17)
> +- Scan hive default.t2 (7){code}
>
>
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