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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/02/25 04:27:08 UTC
[GitHub] [spark] ulysses-you opened a new pull request #35658: [SPARK-38322][SQL] Support query stage show runtime statistics in formatted explain mode
ulysses-you opened a new pull request #35658:
URL: https://github.com/apache/spark/pull/35658
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### What changes were proposed in this pull request?
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Add query stage statistics information in formatted explain mode.
### Why are the changes needed?
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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:
```sql
SELECT * FROM t JOIN t2 ON t.c = t2.c;
```
```sql
== 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)
```
### Does this PR introduce _any_ user-facing change?
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no, only change the output of explain in AQE
### How was this patch tested?
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Add test
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[GitHub] [spark] ulysses-you commented on pull request #35658: [SPARK-38322][SQL] Support query stage show runtime statistics in formatted explain mode
Posted by GitBox <gi...@apache.org>.
ulysses-you commented on pull request #35658:
URL: https://github.com/apache/spark/pull/35658#issuecomment-1050574009
cc @dongjoon-hyun @cloud-fan @HyukjinKwon
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[GitHub] [spark] cloud-fan closed pull request #35658: [SPARK-38322][SQL] Support query stage show runtime statistics in formatted explain mode
Posted by GitBox <gi...@apache.org>.
cloud-fan closed pull request #35658:
URL: https://github.com/apache/spark/pull/35658
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[GitHub] [spark] cloud-fan commented on pull request #35658: [SPARK-38322][SQL] Support query stage show runtime statistics in formatted explain mode
Posted by GitBox <gi...@apache.org>.
cloud-fan commented on pull request #35658:
URL: https://github.com/apache/spark/pull/35658#issuecomment-1050579182
thanks, merging to master!
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[GitHub] [spark] ulysses-you commented on pull request #35658: [SPARK-38322][SQL] Support query stage show runtime statistics in formatted explain mode
Posted by GitBox <gi...@apache.org>.
ulysses-you commented on pull request #35658:
URL: https://github.com/apache/spark/pull/35658#issuecomment-1050640755
thank you @cloud-fan !
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