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From "jiaan.geng (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-28580) ANSI SQL: unique predicate
Date Wed, 31 Jul 2019 08:46:00 GMT
jiaan.geng created SPARK-28580:
----------------------------------

             Summary: ANSI SQL: unique predicate
                 Key: SPARK-28580
                 URL: https://issues.apache.org/jira/browse/SPARK-28580
             Project: Spark
          Issue Type: New Feature
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: jiaan.geng


Format
<unique predicate> ::=
UNIQUE <table subquery>



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