drill-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jinfeng Ni (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-3651) Window function should not be allowed in order by clause of over clause of window function
Date Fri, 14 Aug 2015 19:57:45 GMT

     [ https://issues.apache.org/jira/browse/DRILL-3651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jinfeng Ni updated DRILL-3651:
------------------------------
    Assignee: Aman Sinha  (was: Jinfeng Ni)

> Window function should not be allowed in order by clause of over clause of window function
> ------------------------------------------------------------------------------------------
>
>                 Key: DRILL-3651
>                 URL: https://issues.apache.org/jira/browse/DRILL-3651
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>            Reporter: Victoria Markman
>            Assignee: Aman Sinha
>            Priority: Minor
>              Labels: window_function
>
> Should not parse and throw an error according to SQL standard.
> "ISO/IEC 9075-2:2011(E) 7.11 <window clause>" 
> d) If WDX has a window ordering clause, then WDEF shall not specify <window order
clause> (hope I'm reading it correctly)
> {code}
> SELECT rank() OVER (ORDER BY rank() OVER (ORDER BY c1)) from t1;
> {code}
> Instead, drill returns result:
> {code}
> 0: jdbc:drill:schema=dfs> SELECT rank() OVER (ORDER BY rank() OVER (ORDER BY c1))
from t1;
> +---------+
> | EXPR$0  |
> +---------+
> | 1       |
> | 2       |
> | 3       |
> | 4       |
> | 5       |
> | 6       |
> | 7       |
> | 8       |
> | 9       |
> | 10      |
> +---------+
> 10 rows selected (0.336 seconds)
> {code}
> Postgres throws an error in this case:
> {code}
> postgres=# SELECT rank() OVER (ORDER BY rank() OVER (ORDER BY c1)) from t1;
> ERROR:  window functions are not allowed in window definitions
> LINE 1: SELECT rank() OVER (ORDER BY rank() OVER (ORDER BY c1)) from...
> {code}
> Courtesy of postgres test suite.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message