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From "Maryann Xue (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-24163) Support "ANY" or sub-query for Pivot "IN" clause
Date Wed, 02 May 2018 23:50:00 GMT
Maryann Xue created SPARK-24163:
-----------------------------------

             Summary: Support "ANY" or sub-query for Pivot "IN" clause
                 Key: SPARK-24163
                 URL: https://issues.apache.org/jira/browse/SPARK-24163
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 2.3.0
            Reporter: Maryann Xue


This is part of a functionality extension to Pivot SQL support as SPARK-24035.

Currently, only literal values are allowed in Pivot "IN" clause. To support ANY or a sub-query
in the "IN" clause (the examples of which provided below), we need to enable evaluation of
a sub-query before/during query analysis time.
{code:java}
SELECT * FROM (
  SELECT year, course, earnings FROM courseSales
)
PIVOT (
  sum(earnings)
  FOR course IN ANY
);{code}
{code:java}
SELECT * FROM (
  SELECT year, course, earnings FROM courseSales
)
PIVOT (
  sum(earnings)
  FOR course IN (
    SELECT course FROM courses
    WHERE region = 'AZ'
  )
);
{code}



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