[jira] [Updated] (SPARK-28228) Better support for WITH clause

["Peter Toth (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-28228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Peter Toth updated SPARK-28228:
-------------------------------
    Affects Version/s:     (was: 2.2.0)
                       3.0.0

> Better support for WITH clause
> ------------------------------
>
>                 Key: SPARK-28228
>                 URL: https://issues.apache.org/jira/browse/SPARK-28228
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Peter Toth
>            Priority: Major
>
> Because of Spark-17590 it should be relatively easy to support WITH clause in subqueries besides nested CTE definitions.
> Here an example of a query that does not run on spark:
> create table test (seqno int, k string, v int) using parquet;
> insert into TABLE test values (1,'a', 99),(2, 'b', 88),(3, 'a', 77),(4, 'b', 66),(5, 'c', 55),(6, 'a', 44),(7, 'b', 33);
> SELECT percentile(b, 0.5) FROM (WITH mavg AS (SELECT k, AVG(v) OVER (PARTITION BY k ORDER BY seqno ROWS BETWEEN 3 PRECEDING AND CURRENT ROW) as b FROM test ORDER BY seqno) SELECT k, MAX(b) as b  FROM mavg GROUP BY k);



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org