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Posted to issues@spark.apache.org by "jiaan.geng (Jira)" <ji...@apache.org> on 2022/07/01 04:28:00 UTC

[jira] [Created] (SPARK-39651) Prune filter condition compare rand function with foldable expression

jiaan.geng created SPARK-39651:
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             Summary: Prune filter condition compare rand function with foldable expression
                 Key: SPARK-39651
                 URL: https://issues.apache.org/jira/browse/SPARK-39651
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.4.0
            Reporter: jiaan.geng


The SQL
SELECT * FROM tab WHERE rand(1) < 2
evaluate rand(1) < 2 for rows one by one.
In fact, we can prune the filter condition.



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