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https://issues.apache.org/jira/browse/SPARK-32469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan updated SPARK-32469:
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Description:
It's good hygiene to keep rules idempotent, even if we know the rule is going
to be run only once. This is for future-proof.
ApplyColumnarRulesAndInsertTransitions can add columnar-to-row and
row-to-columnar operators repeated, we should fix it.
was:
It's good hygiene to keep rules idempotent, even if we know the rule is going
to be run only once. This is for future-proof.
> ApplyColumnarRulesAndInsertTransitions should be idempotent
> -----------------------------------------------------------
>
> Key: SPARK-32469
> URL: https://issues.apache.org/jira/browse/SPARK-32469
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: Wenchen Fan
> Assignee: Wenchen Fan
> Priority: Major
>
> It's good hygiene to keep rules idempotent, even if we know the rule is going
> to be run only once. This is for future-proof.
> ApplyColumnarRulesAndInsertTransitions can add columnar-to-row and
> row-to-columnar operators repeated, we should fix it.
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