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Posted to issues@spark.apache.org by "Max Thompson (Jira)" <ji...@apache.org> on 2019/12/27 18:47:00 UTC
[jira] [Updated] (SPARK-30367) De-duplicate InMemoryTableScan
cached plans in SQL UI
[ https://issues.apache.org/jira/browse/SPARK-30367?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Max Thompson updated SPARK-30367:
---------------------------------
Attachment: duplicated-imr.png
> De-duplicate InMemoryTableScan cached plans in SQL UI
> -----------------------------------------------------
>
> Key: SPARK-30367
> URL: https://issues.apache.org/jira/browse/SPARK-30367
> Project: Spark
> Issue Type: Improvement
> Components: SQL, Web UI
> Affects Versions: 3.0.0
> Reporter: Max Thompson
> Priority: Minor
> Attachments: duplicated-imr.png
>
>
> This is a follow-up JIRA for: https://issues.apache.org/jira/browse/SPARK-29431
>
> Currently with the change introduced by the JIRA this follows up on, duplicate subtrees of the query plan can be shown if multiple InMemoryTableScans read from the same persisted data:
> !SKF6TLGsAAAAASUVORK5CYII=!
>
> To prevent confusion, we should add an "InMemoryRelation" node that represents the persisted data being read from, and use it to de-duplicate shared plans like so:
> !E0KYCAIKYAALQQMQUAoIWIKQAALURMAQBoIWIKAEALEVMAAFqImAIA0ELEFACAFiKmAAC0EDEFAKCFiCkAAC1ETAEAaCFiCgBACxFTAABa6H8BsISskzFa3iEAAAAASUVORK5CYII=!
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