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Posted to issues@spark.apache.org by "Maxim Gekk (Jira)" <ji...@apache.org> on 2019/10/05 18:19:00 UTC

[jira] [Created] (SPARK-29364) Return intervals from date subtracts

Maxim Gekk created SPARK-29364:
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             Summary: Return intervals from date subtracts
                 Key: SPARK-29364
                 URL: https://issues.apache.org/jira/browse/SPARK-29364
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 2.4.4
            Reporter: Maxim Gekk


According to the SQL standard, date1 - date2 is an interval. See http://www.contrib.andrew.cmu.edu/~shadow/sql/sql1992.txt at +_4.5.3  Operations involving datetimes and intervals_+. The ticket aims to modify the DateDiff expression to produce another expression of the INTERVAL type When wspark.sql.ansi.enabled` is set to *true* and `spark.sql.dialect` is *Spark*.



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