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Posted to issues@spark.apache.org by "Yuanjian Li (Jira)" <ji...@apache.org> on 2019/12/10 17:32:00 UTC

[jira] [Created] (SPARK-30207) Enhance the SQL NULL Semantics document

Yuanjian Li created SPARK-30207:
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             Summary: Enhance the SQL NULL Semantics document
                 Key: SPARK-30207
                 URL: https://issues.apache.org/jira/browse/SPARK-30207
             Project: Spark
          Issue Type: Improvement
          Components: Documentation, SQL
    Affects Versions: 3.0.0
            Reporter: Yuanjian Li


Enhancement of the SQL NULL Semantics document: sql-ref-null-semantics.html.

Clarify the behavior of `UNKNOW` for both `EXIST` and `IN` operation.



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