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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