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https://issues.apache.org/jira/browse/SPARK-27655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuming Wang updated SPARK-27655:
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Attachment: disableFallBackToHdfs.png
enableFallBackToHdfs.png
> Persistent the table statistics to metadata after fall back to hdfs
> -------------------------------------------------------------------
>
> Key: SPARK-27655
> URL: https://issues.apache.org/jira/browse/SPARK-27655
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Yuming Wang
> Priority: Major
> Attachments: disableFallBackToHdfs.png, enableFallBackToHdfs.png
>
>
> It's a real case. We need to join many times from different tables, but the
> statistics of some tables are incorrect. So this job need 43 min, It only
> need 3.7min after set
> {{spark.sql.statistics.persistentStatsAfterFallBack=true}}.
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