phoenix-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alicia Ying Shu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-1749) ORDER BY should support ordinal position as well as expression
Date Sat, 11 Apr 2015 02:31:12 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-1749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alicia Ying Shu updated PHOENIX-1749:
-------------------------------------
    Attachment:     (was: Phoenix-1749-v2.patch)

> ORDER BY should support ordinal position as well as expression
> --------------------------------------------------------------
>
>                 Key: PHOENIX-1749
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1749
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Serhiy Bilousov
>            Assignee: Alicia Ying Shu
>         Attachments: PHOENIX-1749-v1.patch, PHOENIX-1749.patch, Phoenix-1749-v2.patch
>
>
> In postgreSQL (and many others DBs) you can specify not only column name for the ORDER
BY but column number (position in SELECT part) as well as column alias.
> see:
> http://www.postgresql.org/docs/9.4/static/queries-order.html
> http://www.postgresql.org/docs/9.4/static/sql-select.html#SQL-GROUPBY
> Adding such support would be very helpful and sometimes necessary.
> I can provide real queries example if required but basically we want something like this
> given query
> SELECT a, b, TRUNC(current_date(),'HOUR') AS date_truncated FROM table 
> we want 
> ORDER BY 1 ASC, 2 DESC
> ORDER BY date_truncated 
> Having just column number would cover both but having column alias would make queries
more readable and human friendly. Plus make it one little stem closer to postgreSQL and SQL
standard.



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

Mime
View raw message