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Posted to issues@spark.apache.org by "jiaan.geng (Jira)" <ji...@apache.org> on 2020/02/04 10:13:00 UTC

[jira] [Created] (SPARK-30727) ANSI SQL: LAST_VALUE function

jiaan.geng created SPARK-30727:
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             Summary: ANSI SQL: LAST_VALUE function
                 Key: SPARK-30727
                 URL: https://issues.apache.org/jira/browse/SPARK-30727
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: jiaan.geng


I have checked PostgreSQL, Vertica, Oracle, Redshift, Presto, Teradata, FIRST_VALUE|LAST_VALUE is always used as a window function, not as an aggregate function.

The FIRST_VALUE function currently provided can be used as both an aggregation function and a window function.

Maybe we need to re-implement it.



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