[jira] [Created] (SPARK-28237) Add a new batch strategy called Idempotent to catch potential bugs in corresponding rules

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

Yesheng Ma created SPARK-28237:
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             Summary: Add a new batch strategy called Idempotent to catch potential bugs in corresponding rules
                 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


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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