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https://issues.apache.org/jira/browse/SPARK-38976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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wesharn updated SPARK-38976:
----------------------------
Description:
It occured duplicate records when spark-sql overwrite hive table . when spark
job has failure stages,but dateframe has no duplicate records? when I run the
job again, the reasult is correct.It confused me.why?
eg: dataFrame.write().mode(SaveMode.Overwrite).insertInto("outputTable");
no duplicate records in dataFrame, but duplicate records existed in hive
outputTable
was:It occured duplicate records when spark-sql overwrite hive table . when
spark job has failure stages,but dateframe has any duplicate id? when I run the
job again, the reasult is correct.It confused me.why?
> spark-sql. overwrite. hive table-duplicate records
> --------------------------------------------------
>
> Key: SPARK-38976
> URL: https://issues.apache.org/jira/browse/SPARK-38976
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 3.2.1
> Reporter: wesharn
> Priority: Major
>
> It occured duplicate records when spark-sql overwrite hive table . when spark
> job has failure stages,but dateframe has no duplicate records? when I run the
> job again, the reasult is correct.It confused me.why?
> eg: dataFrame.write().mode(SaveMode.Overwrite).insertInto("outputTable");
> no duplicate records in dataFrame, but duplicate records existed in hive
> outputTable
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