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Posted to issues@spark.apache.org by "Yesheng Ma (JIRA)" <ji...@apache.org> on 2019/07/08 17:20:00 UTC

[jira] [Created] (SPARK-28306) Once optimizer rule NormalizeFloatingNumbers is not idempotent

Yesheng Ma created SPARK-28306:
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             Summary: Once optimizer rule NormalizeFloatingNumbers is not idempotent
                 Key: SPARK-28306
                 URL: https://issues.apache.org/jira/browse/SPARK-28306
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Yesheng Ma


When the rule NormalizeFloatingNumbers is called multiple times, it will add additional transform operator to an expression, which is not appropriate. To fix it, we have to make it idempotent, i.e. yield the same logical plan regardless of multiple runs.



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