[jira] [Updated] (SPARK-28237) Idempotence checker for Idempotent batches in RuleExecutors

["Yesheng Ma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-28237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yesheng Ma updated SPARK-28237:
-------------------------------
    Summary: Idempotence checker for Idempotent batches in RuleExecutors  (was: Add a new batch strategy called Idempotent to catch potential bugs in corresponding rules)

> Idempotence checker for Idempotent batches in RuleExecutors
> -----------------------------------------------------------
>
>                 Key: SPARK-28237
>                 URL: https://issues.apache.org/jira/browse/SPARK-28237
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Yesheng Ma
>            Priority: Major
>
> The current {{RuleExecutor}} system contains two kinds of strategies: {{Once}} and {{FixedPoint}}. The {{Once}} strategy is supposed to run once. However, for particular rules (e.g. PullOutNondeterministic), they are designed to be idempotent, but Spark currently lacks corresponding mechanism to prevent such kind of non-idempotent behavior from happening.



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