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Posted to issues@spark.apache.org by "Takeshi Yamamuro (Jira)" <ji...@apache.org> on 2020/08/30 12:29:00 UTC

[jira] [Created] (SPARK-32741) Check if the same ExprId refers to the unique attribute in logical plans

Takeshi Yamamuro created SPARK-32741:
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             Summary: Check if the same ExprId refers to the unique attribute in logical plans
                 Key: SPARK-32741
                 URL: https://issues.apache.org/jira/browse/SPARK-32741
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.1.0
            Reporter: Takeshi Yamamuro


Some plan transformations (e.g., `RemoveNoopOperators`) implicitly assume the same `ExprId` refers to the unique attribute. But, `RuleExecutor` does not check this integrity between logical plan transformations. So, this ticket targets at adding this check in `isPlanIntegral` of `Analyzer`/`Optimizer`.

This PR comes from the talk with @cloud-fan @viirya in https://github.com/apache/spark/pull/29485#discussion_r475346278



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